Businesses across Australia choose Bost Group for our many benefits, including:

• Up to Date Machinery & Technology 
• Affordable Equipment to Suit Your Budget
• Technical Support & Training
• Reliable Products that Lower Risks
• Tax-Deductible

We Set a New Standard for Mining & Construction Innovation 

At Bost Group, exceptional quality is only the beginning. The machinery and products that we provide to various industries are the latest in innovation. Cut your worksite’s costs and ensure high production at faster speeds. From our Mobile Jaw Crushers to our advanced Mining Screens, we’ve perfected a selection of Mining and Construction products that will see your business surpass its expectations. 

Our products for hire are provided at competitive prices and include:

• Crush and Screen Rental: including Mobile Impact Crushers, Mobile Jaw Crushers, Mobile Cone Crushers, Mobile Screening Plant, Mobile Conveyors
• Mining Rental: Refuge Chambers, Refueling Stations, Underground Buckets, Underground Buckets, Development Drills/Jumbos, Boggers 

Through Consultation, Training and Support, We Ensure the Best for Our Clients in the Mining & Construction Industry 

At Bost Group, we go above and beyond providing the highest standard of technology. To ensure our customers get the most out of our equipment, we provide free consultation, as well as training and on-going support during their use. Through consultation, we will guide you to pick the right product for you that suits your goals and needs.

Our service allows businesses and worksites to:

• Reduce risks
• Use equipment confidently with optimum efficiency 
• To implement the best solutions to obstacles and goals
• To receive support and advice at any time
• Minimize downtime 
• Reduce maintenance costs
• Servicing and maintenance 
• Troubleshooting support 
• Equipment Setup 

We Service Australia Wide, Including Perth, Brisbane & Melbourne 

Bost Group is Australia’s first choice for its Construction and Mining needs. We have proudly aided businesses and projects to successfully meet their goals with effective technology and support. Our service is available across Australia including Perth, Brisbane, Melbourne and beyond. 

Bost Group’s services and products incorporate 6 divisions:

• Crush & Screen
• Mining
• Rental
• Attach
• Used Equipment
• Support

We Offer a Range of Finance Options to Suit Your Needs & Circumstances 

At Bost Group, we are passionate about providing high-quality technology for hire, available for a range of budgets and project sizes. We offer a range of financial solutions for clients in conjunction with EMB Finance to suit their specific needs. Our financing considers the many circumstances and needs that different clients may have and are provided with a personal touch. Contact one of our friendly consultants today to discuss financial support for your next Bost Group product for hire.  

Hire from Bost Group Today 

Our team at Bost Group is available at any time to take your next construction or mining project to the next level. If you have any enquiries about equipment for hire, pricing or support, we will be happy to help.  

Contact Bost Group today at 1800 093 317 or get in touch online 

The post Why Hire from Bost Group, Your Mining & Construction Solutions appeared first on Bost Group.

Mobile Crushing Plants

Mobile Crushers are like Stationary Crushers but with several key differences. One of their main structural design differences is their mobility, allowing them to transport crusher material (ore, stone, rock) out of the mining area, also via Portable Track Conveyors. A Mobile Crusher is a completely self-contained unit. Mobile Crushers can implement several types of Crushers including:

• Mobile Jaw Crushers
• Mobile Gyratory Crushers
• Mobile Hammer Mills
• Mobile Impact Crushers
• Mobile Roll Crushers

Operating Costs

Mobile Crushing Plants eliminate the need for transportation and so will save you a lot of money in that regard. Traditional/Stationary Crushers will require a high cost to be transported to the site. Also, unlike Stationary Crushers, Mobile Crushing Plants can crush material directly on-site, with the ability to either transport the end-product by itself or deliver it to a truck due to its long frame. This will save a significant amount in processing costs, particularly for mining applications.

Efficiency

Mobile Crushing Plants are like small-to-medium-sized Crushing Plants. Although its output may not reach as high a maximum quantity as large Crushing Plants, it makes up for it with its high-efficiency, multi-functionality and high-quality end-product at a significantly lower cost. Part of the key to Mobile Crushing Plants’ efficiency is their ability to be configured and handled by a much smaller amount of people compared to Stationary Crushers as well as set-up time. Mobile Crushing Plants are made of 3 stages or 3 different Crushing Machines, each with specific features. Today, Mobile Crushing plants achieve a strong structure and effective design.

Versatility

One of the key benefits of Mobile Crushing Plants is their versatility and flexible configuration. With their ability to be self-transported, they can be conveniently placed and configured as close to the material as possible. Stationary Crushing Plants are less flexible and more reliant on the topography of the site.  Once installed, Mobile Crushing plants have numerous operations that can be performed including pre-screening, fine screening and crushing. With a powerful diesel engine, Mobile Crushers can handle even the most challenging tasks that Stationary Crushers do. Due to their mobility, Mobile Crushers are also able to be easily replaced such as during the transportation of the final product.

In Conclusion

There are benefits of choosing Mobile Crushers for Sale or Rent, or Stationary Crushers, depending on which option works best for you. When making the choice of which type of Mining Equipment you will use, there is a lot to consider including your budget, location, material being crushed, the number of crew you are using as well as the amount of time you will spend at the site. Stationary Crushers can promise a high output of material but are limited in versatility. Mobile Crushers are extremely versatile and have reached the point of providing an output that rivals that of Stationary Crushers.

Bost Group is Australia’s Industry Leaders for High-Quality Mining and Construction Equipment Sales and Rental. With a passion for providing forward-thinking solutions to the Mining and Construction Industry, we have become globally recognised as a premium industry provider.

Contact Bost Group today at 1800 267 847.

The post Mobile Crushing and Screening Equipment Versus Stationary Equipment: An In-depth Comparison appeared first on Bost Group.

Come meet us at the following upcoming events:

WASTE EXPO AUSTRALIA (MELBOURNE, VIC)

Date: 23-24 October 2019

Avenue: Melbourne Convention & Exhibition Centre

Time: 9.00 am – 5.00 pm

Bost Group is proud to be a part of an impressive line-up of brands and companies in attendance at Waste Expo Australia. Waste Expo Australia is the largest gathering (featuring over 120 brands) of leaders and experts in the waste management industry. It’s a free-to-attend event that offers you access to all the latest information and technology, as well as an opportunity to network with peers and expand your horizons.

WORTHY PARTS INDUSTRY LINK AUCTION AND EXPO (KALGOORLIE, WA)

Date: 24-25 October 2019

Avenue: Cruickshank’s Sports Arena

Time: 11.00 am – 6.00 pm

Be sure to come say ‘’Hi’’ to us at Booth #53 at the Worthy Parts Industry Link Auction and Expo. It’s the biggest mining expo and auction showcase in WA, featuring over 120 service providers from the mining industry. Bost Group will be showcasing an array of all our latest mining machinery and equipment for sale and hire. It’s a great avenue to make connections within the industry and meet potential clients.

AUSTRALASIAN WASTE RECYCLING EXPO (SYDNEY, NSW)

Date: 30-31 October 2019

Avenue: International Convention Centre, Darling Harbour

Time: 10.00 am – 4.00 pm

Bost Group is committed to creating a cleaner, greener and better Australia, and taking part in the Australian Waste Recycling Expo is a step in the right direction. The AWRE is a two-day event that focuses on waste and recycling solutions that are sustainable and economically viable.

All three of the above-mentioned events are industry-specific and geared towards moving Australia in the direction of sustainable growth based on technological innovations and advancements. Bost Group has always been a proponent of innovation and being a part of such noteworthy events with a higher vision is important to us. It reflects who we are as a company and what we stand for. Our calendar for October 2019 is full and as we near the end of the year, we hope that next year (2020) is just as engaging and eventful as this one’s been.

The post Bost Group’s Exciting Line-up of Events for October 2019 appeared first on Bost Group.

It’s that time of year again; we have a wealth of Trade Shows to attend.

People have very different opinions on the value of Trade Shows, we see them as a positive and look forward to the excitement and networking that comes with them.

They work for us in a number of ways:

• It is a chance to get together with industry experts and see exciting new products and the direction different companies are taking.
• Our team is usually spread across the country, so trade shows offer the opportunity to get together, connect and work as a team representing our organisation. There are 3 good reasons to develop teamwork as listed Shada Whebe from Potential.
  • Teamwork promotes a sense of unity and loyalty
  • Teamwork provides the business with different perspectives, problem-solving approaches, thought process and varied creative input
  • An opportunity to learn from each other
• Gives us face to face contact with our customers.
  • Helps make a connection
  • Non-verbal cues are crucial in communicating and they tend to get lost in the Digital Age. The trade show offers the opportunity to chat with customers and really observe and connect
  • A chance to get opinions and feedback from customers
  • Addressing sensitive issues is much easier when communicating in person and this can be crucial in ensuring positive outcomes
• Trade shows provide a great platform to launch a new product or service. It is much easier to discuss and explain in person, any new products and services, especially if they are innovative
• Building our database is a natural outcome of Tradeshows
• Exposure through the Trade shows marketing activities such as the show guide, website and social media is a bonus
• Establishes our company as a serious player in the mining, earthmoving, construction, waste and recycling industries and reaffirms confidence our company is in good shape
• Get a feel for our position in the market and observe our competitors and products
• Personalisation is a key marketing strategy these days. We try to do this across all our marketing platforms, addressing emails with first names, segmenting our customers into groups and then sharing relevant material with them and more. Taking personalisation further Jessica Turnball talks about Heartwork in her latest Blog

‘Well, there’s so much noise out there in the marketplace that people don’t give the same amount of eyeball time to each business. They spend the most time with the ones that win their hearts.’

Trade shows are all about making connections, and the opportunity to genuinely engage and really listen and there is no better way to do this than in person. We are aiming for loyalty that goes both ways and relationships, not just sales driven targets. This is more rewarding for all parties.

To get the best out of your trade show for customers:

• Pre-register – often to save money and queuing
• Check out who else is going from your company and  come up with a plan to learn and cover as much of the show as you can without doubling up and wasting time
• Pre-book appointments if possible, some booths can get very busy and this ensures your time is well spent
• Be open to new ideas
• Put together a plan of the seminars/workshops you want to attend, who you want to see and which booths you would like to visit
• Review the vendors you have seen each day, take notes on ideas, people you have spoken to, specials and offers, and what you liked and disliked. It is often difficult to remember the finer details the following week back at work
• Don’t forget your business cards
• Make an action plan once back in the office and make the most of the information you have gathered

To get the best out of your trade show for exhibitors:

• Present a professional engaging representation of your brand, find something to help you stand out
• Position your stand near communal areas, thoroughfares and industry leaders for traffic and standing
• Attend shows that will attract your target market. Ensure you research the speakers, delegates, other exhibitors and popularity of the show before committing
• Provide quality promotional material. You don’t want you customers throwing out your promotional giveaways, provide items they want to keep. If you have novelty fun promotional items make sure they are memorable, and people want to have them or they are a great conversation starter
• Contact customers prior to the show to pre-book meetings, make it about networking
• Offer incentives for people to visit you at the show
• Update your social media throughout the day
• Ensure you collect the details of all visitors to the stand
• Measure your ROI
• Listen
• Spend time looking around the show yourself, to see what is out there and talk to other industry experts
• The trade show is an opportunity to learn, through networking with competitors and developing relationships as well as attending any relevant educational sessions. Write down key ideas and concepts while at the show, as it is much harder to remember a week later back in the office. Brainstorm and discuss ideas with staff at the stand during the quiet times, use the teamwork to its potential
• Follow up your leads quickly

There are reasons so many people still attend Trade Shows. Although we try, not all benefits can be measured. The best we can do is analyse all measurable data and get a feel for how successful the show has been. All businesses are different, and they might not work for everyone, but here at Bost Group, we see it as an opportunity to make connections offer solutions and deliver our brand identity. See you at the next Trade Show.

Thanks to these people for inspiration:
https://www.aib.edu.au/blog/communication/face-to-face-communication-in-the-digital-age/
https://www.aib.edu.au/blog/teamwork/fostering-teamwork/
https://blog.iseekplant.com.au/blog/iseekplant-does-not-exhibit-at-construction-industry-expos-and-events-and-heres-the-first-reason-why
https://www.brandwatch.com/blog/top-tips-attending-a-trade-show/
https://www.potential.com/articles/5-important-reasons-why-teamwork-matters/
https://www.linkedin.com/pulse/heartwork-ultimate-personalisation-tool-jessica-turnbull/
https://www.nibusinessinfo.co.uk/content/six-tips-exhibiting-trade-shows
https://american-image.com/the-top-15-reasons-why-exhibit-at-trade-shows/

The post The value of Trade Shows! appeared first on Bost Group.

Whether you require construction or mining equipment like Crushers for Rent, a lot of time, money and management will be placed on labour and equipment and so considering whether to implement ‘Dry Hire’ or ‘Wet Hire’ is crucial to your project. But what exactly is Dry Hire and Wet Hire

Dry Hire includes the hiring of equipment, such as a Mobile Jaw Crusher, but not an operator. You will need to operate the machinery yourself or hire an operator from a third party.

Wet Hire includes hiring machinery such as a Mobile Screen and an operator from the same party.

When hiring machinery, you will inevitably have to consider the Pros and Cons of both Dry Hire and Wet Hire to ensure not only that your project runs as efficiently as possible, but that your bottom line is as low as possible.

Bost Group, who are industry leaders for the sale and rent of such Mining Equipment as Mobile Crushers and Screens, Underground Mining equipment and more, have put together some of the Pros and Cons of Dry Hire and Wet Hire.

Dry Hire:

Dry Hire is a popular choice for many businesses and operations because it allows a lot more freedom of choice and budgeting. By only hiring equipment, a business is free to choose operators who fit in with their budget and who they may have already garnered a professional relationship with.

Pros of Dry Hire

• Cheaper Operators – You can choose a third party or freelance operators at a reduced rate
• Fewer People – You can use existing employees or operators reducing the overall cost
• Greater Accountability – You can use an existing employee who has a greater understanding of the processes required for your business.
• Greater Flexibility – You can more easily pick and choose when to hire new operators or existing employees. This makes the number of days or hours required to be more in your control, rather than using the operators supplied through Wet Hire the entire period of renting equipment.
• Dry Hire is Safer – When utilizing existing employees, you have operators who are more familiar with your project and site’s safety protocols. This can also lead to fewer people required on site.
• Greater Control on the Standard of Work – Dry Hire allows you to have greater control on who you choose to employ and therefore having more influence on the standard of work. Wet Hire may require you to hire personnel who you are unfamiliar with and with varying standards of service.

Cons of Dry Hire

• You Have to Look Elsewhere for Personnel – Perhaps the main con of Dry Hire is simply that you may have to look to a third party to hire an operator.

Wet Hire:

Wet Hire is convenient for those who want personnel chosen and hired as soon as possible. They come as a ‘package deal’ with machinery but is generally more expensive.

Pros of Wet Hire

• You Get Personnel and Machinery from One Party – Wet Hire means taking care of finding and hiring personnel as well as machinery from the same source. This is potentially faster in terms of finding personnel. With that said, with so many third parties and agencies, you can just as easily find a high standard of personnel elsewhere with one phone call or search online.
• You Get an Operator Skilled at Operating that Machine – There are many different types of machines available that can do a similar job, however, the skills of the person operating it can determine how successful and effective that machine is. A skilled operator can often save time, money and damage, competence is key.

Cons of Wet Hire

• It is More Expensive – Wet Hire means getting a little convenience at an additional cost.
• You Have Less Say in the Standard of Work – By only being able to choose operators from the one source (which you are less familiar about), you must be resigned to whatever standard of work you are assigned.
• Your Operators are Less Familiar with Your Project and Worksite – By not choosing existing or past employees, your new employees will be less familiar with your project, its equipment, practices and the site’s safety protocols.

Bost Group is Australia’s preeminent provider of innovative solutions and services for the Mining and Construction Industry. We work closely with both Australian and International suppliers to provide you with value-driven products, equipment and support.

Contact Bost Group today at 1800 267 847.

The post Dry Hire Versus Wet Hire: The Pros & Cons to Consider appeared first on Bost Group.

Material may need to go through several stages of Crushing and Screening before achieving the desired end-result.

How to Choose a Crusher?

When choosing the right crusher for you, there are several factors to consider. You will have to choose from the three key crushers available on the market: Mobile Cone Crushers, Mobile Jaw Crushers and Mobile HSI Impact Crushers. Each one of these crushers come with their own unique set of pros and cons in different applications. This does not mean that one crusher is better than the other. Rather, the list of pros and cons help with decision-making, helping you narrow down your choices and zero in on the crusher that will yield the best results for your project and its scope.

Some of the key factors to consider when purchasing or renting a crusher include:

What point in the process the crusher will be used – Primary, secondary or tertiary crusher?

• A primary crusher is best suited to reduce material: from 900 to 300mm, a secondary crusher is typically suited to crushing 300 to 100mm rock and a tertiary crusher is ideal for finer crushing producing fractions below 30mm

Feed Material:

• The Level of Abrasiveness and Hardness of the Material Being Crushed: Different crushers are designed to withstand varied levels hardness or abrasiveness of materials. It is very important to choose a crusher that can handle the material you aim to crush. Abrasive rock can increase wear on crusher parts, and add to the expense of running the machine. Hard abrasive rock can include granite and quartz, softer less abrasive rock can include dolomite and limestone.
• The Size & Dimension of the Material Being Crushed: Not only do you need to consider the size of the crushed material, but also the size and dimensions of the material being put into the crusher. The feed material needs to be less than 80% of the gape which is the greatest distance between the two crushing sides. Other factors to consider when examining the feed material is how it will break and what shape will be produced along with the amount of fines.

Output:

• The Required Product Size: the end product size will depend on the type of crusher you use and the CSS Closed size setting you are able to achieve
• The Processing Capacity/Throughput: Whatever project you are working on, you will have a required throughput to ensure you have the amount of material processed on time. This is measured in tonnes per hour. “Proper production capacities are critical to the success of a business. A crusher that is too small fails to produce the desired tonnages, which limits yields and profits and caps the organization’s growth potential. A machine that’s too large carries extra expense with no added value.”https://www.pitandquarry.com/selecting-the-right-crusher/

Cost and quality of wear parts:

• The Cost and Quality of Parts Can Vary: this can be due to a number of factors such as the material used in the parts including manganese, steel, chrome or ceramic,  if they are genuine parts, and the quality of manufacture.

Ease of maintenance:

• Some Jaw Crushers have Removable Engines: which can ensure that when located remotely from the crushing plant it will reduce dust and vibration levels, as well as facilitate easy maintenance access.
• Some Jaws Have a Reversible Jaw Drive: that allows material like asphalt to be ‘fluffed’ and in the case of oversized or sticky material; quickly unblock the unit and continue crushing. Both of these features assist in managing WHS.

Mobility:

• Some crushers are designed to be more mobile: The mobility of the crusher is more than just the speed. It is also the ability to maneuver in small spaces.  Mobile crushers are mostly available as tracked equipment, they are designed to turn within their own footprint, travel from side to side and have a lower centre of gravity ensuring more stability. Mobile crushers can also come wheeled and are suitable for certain applications such as asphalt and hard concrete.

The Key Crushers on The Market – Which One Should You Choose?

Going through the pros and cons of each crusher will help you make a well-informed decision when considering crushers for rent.

Mobile Jaw Crusher

Jaw Crushers are predominately primary crushers. They are used to crush hard material such as rock, ores, granite, recycled concrete and more.

They consist of a fixed plate, a swing plate (called jaws), and it is between these that rock is trapped and crushed. Both sides are replaceable as well as the side liners or cheek plates. The typical reduction ratio is 5:1 – 7:1. Minimum CSS closed sized setting is 75-90mm.

Pros:

• Handle large feed size
• High production
• They are low maintenance.
• Often less costly to operate due to minimal moving parts
• They are comparatively rudimentary and so, not difficult to use

Cons:

• Is mainly suitable for hard material, not soft or mixed material
• Has a limited reduction ratio (however can be used in combination with other crushers if required)
• Depending on the rock type the jaw may not give the best shape

Mobile Cone Crusher

Cone Crushers (Conical Crushers) are a popular choice for secondary crushing. The outside of the chamber is called the concave and is fixed, inside the chamber is the rotating shaft called the Mantle. The Mantle rotates and moves in an eccentric circular motion crushing the rock against the concave. As the rocks break they slide down the chamber and continue to be crushed by the mantle until they are small enough to pass through the opening at the bottom.

Pros:

• Good product shape especially if the reduction ratio is lower
• Accepts most types of feed material
• Reasonable reduction ratio
• Sturdy

Cons:

• They are designed as a secondary crusher
• Can be more expensive
• Is mainly suitable for hard material, not soft, clay or mixed material such as concrete feed material or metal mixed with rock

Mobile Impact Crusher

Impact crushers can vary from primary crushers, secondary crushers to tertiary crushers depending on the technology and size of the model. They use high impact to crush material, being equipped with a high speed rotor with blow bars or hammers that throw the rock against the breaker plates. The blow bars hit the raw material which lands onto the breaker plates, before bouncing back up and continuing the process until the material is small enough. Impact Crushers generally come as either Horizontal-shafts or Vertical-axis.

Pros:

• They can crush a variety of material such as clay, dirt, soft materials and more.
• Better quality shaped product produced
• High reduction ratio
• Can be used as a primary crusher to produce final product
• Produces large amount of fines
• Accept contaminated materials
• Different blow bars can be chosen to best suit the application. These include Manganese, Chrome and Ceramic, which have different wear qualities.

Cons

• Can be more expensive
• Higher wear rate especially in abrasive rock
• Large pieces of steel will cause substantial damage
• Good dust suppression will be required

To get the most out of any crusher you choose, consider prescreening your material to ensure the feed is relatively uniform and then choke feed the crusher. Greater production will be achieved if the material is fed in a consistent manner without start stop operation in order to give better shape and better reduction, with less wear and tear.

To find out more about which crusher would suit your application, speak to one of our trained consultants, contact Bost Group today at 1800 267 847.

The post Choosing the Right Crusher for Your Operations appeared first on Bost Group.

At Bost Group, we provide a wide range of industry solutions for the mining, quarrying & construction sector. Our Crushing and Screening equipment are state-of-the-art. We are constantly looking for ways in which we can help our clients achieve better productivity, which is why our team works closely with manufacturers from around the world to provide you with affordable yet high-quality equipment.

When it comes to Crushing Equipment for Sale, we have quite an extensive range of new and used crushers that will prove to be a great buy for you – both in terms of product quality as well as the price.

Here’s a quick look at some of the Most Popular Crushers that we have for hire and/or sale. Keep in mind that this is not the full list, but more of a sample for you to get an idea of the range of brands and models that we have.

Mobile Jaw Crushers

To name only a few of our fantastic Mobile Jaw Crushers:

• GASPARIN GI129C/CV EVEREST: The GI 129C is the flagship crusher for the Gasparin Jaw Crusher range. This model is exceptional for heavy applications thanks to its high-strength components. The GI129C is equipped with a vibrating grizzly feeder and is suited for traditional application, while the GI129CV with vibrating grizzly feeder and pre-screen is better suited to demanding application and higher percentages of fine particles.
• KEESTRACK B3: Keestrack focus on innovation and design has produced one of the leading Jaw crushers around. At the heart of their design is a commitment to safety and performance and this Jaw has the lowest engine consumption on the market and a reverse crushing option for blockages and sticky material. It also has the largest jaw opening for the 30t range, with a minimum CSS of 45mm. This machine is available with many options including overband magnets, and as an electric version.
• PORTAFILL MJ-9/MJ-9R (9000JC/9000JC-R): This compact jaw crusher is a powerhouse for its size. It is ideally suited to contractors and quarry operators alike. The MJ-9 can be easily transported and is designed to excel in a wide range of crushing applications. The stylish modern design allows unrivalled access to the engine and around the crushing chamber. The Portafill MJ-9R (9000JC-R) comes with all the features of the MJ-9 (9000JC) with the addition of a fitted screen box and returns conveyor that will return oversize materials to the feeder/hopper or optionally stockpile oversize material to the side of the machine.

Mobile Cone Crushers

Some of our exceptional Cone Crushers include:

• KEESTRACK H4E: A highly productive and sturdy Cone Crusher, the KEESTRACK H4Eis able to withstand tough environments and is used for primary, secondary, tertiary or quarternary crushing application. Its design is focused on productivity, safety and ease of use which is evident with the removable engine option and the availability of the full hybrid machine. It can be fed up to 185 mm material, has the capacity to achieve up to 250 tonnes/hr and is extremely versatile with options of different crushing chambers.
• KEESTRACK H6E: Keestrack products are easy to operate maintain and to access for replacing wear and spare parts. This versatile Cone Crusher can be used in primary, secondary, tertiary or quarternary crushing application. It is designed to crush the toughest of rock and ore, being fed up to 215 mm material and has the capacity for up to 400 tonnes/hr. It is available as a full hybrid model also with the option of different crushing chambers.

Mobile HSI Impact Crushers

Here’s a quick look at some of our Mobile HSI Impact Crushers:

• GASPARIN GI 1111 K2/K2R: This crusher has an efficient & highly productive horizontal shaft impactor. It is versatile in application and as the latest generation HCS management system & technologies, offering using high production volume and a consistent end production. The K2R is known for its low running costs and being equipped with a closed-circuit system.
• KEESTRACK R6: With its unrivalled performance, this beast of an Impact Crusher is able to produce quality shaped product at up to 500 tonnes/hr. It has the highest reduction ratio of crushers in its class and is suitable for both primary and secondary crushing. It is equipped with one of the most heavy duty rotors that can withstand the hardest of materials. It is also available as a hybrid model.
• PORTAFILL MI-7/MI-7R (7000IC/7000IC-R): A must have impact crusher for contractors and recycling operators, this crusher is compact, has exceptional ease of use and ideally suited for crushing concrete, rubble, asphalt and stone. The MI-7R (7000IC-R) features the standard MI-7 (7000IC) with the addition of a screen and recirculating system. Oversize material can be returned to the feeder of the crusher or optionally stockpiled to the side of the machine.

For a quote or for more information on any of the machinery mentioned here, please don’t hesitate to contact Bost Group today at 1800 267 847.

The post A List of Our Most Popular Crushers for Sale/Hire appeared first on Bost Group.

The post Infographic Mining Refuge Chamber appeared first on Bost Group.

The main objective when screening material, is to separate based on size, and having the stock piles meeting the required specifications. The ideal situation is to have this all achieved with the highest possible production rate.

When the material comes into contact with the screen it forms layers. The bigger particles are at the top, with the remaining particles sifting through so that the smaller particles are on the bottom.

The first stage of this screening process has an abundance of small particles trying to fit through the screen at the same time. The screen media in this section should be resistant to abrasion and impact. It is important that the amount of material going over the screen is not so much that it doesn’t give a chance for the small particles to feed through, resulting in them being pushed through to the end, producing fines overrun.

Other issues that can occur include:

• Similar size particles to the aperture opening get wedged, plugged or pegged in the opening.
• Smaller particles get wedged trying to fit though the opening at the same time.
• Blinding of the screen media happens when there is high humidity or moisture and clay in the material, making the small particles stick and block the screen surface.

The amount of production will be reduced when the screen is blinded or pegged. The amount of blinding or blockage on the screen will result in the same amount of lost production. If the screen efficiency is reduced by ten percent due to blinding then the production output will also be reduced by 10%. On a machine that is working at 300 tonnes/hour producing 12000 tonnes per week, a loss of 10% would be 1200 tonnes for the week. For product that is sold at $20/tonne that is lost revenue of $24000 for the week.

It will take more time to produce the same quantity of material through a blinded screen which may cause problems if you have time restraints and penalties, along with extra wages and machine costs.

Finally it may also produce a poor quality or out of spec product that is contaminated by fines overrun, a problem no contractor wants to have!

What you need to consider!

For maximum efficiency and capacity you need to consider the following when choosing the screen media:

• Screen inclination – this effects how fast the material flows over the screen media and consequently the capacity of the screen. If the material flows over the screen too quickly it may not have a chance to feed through the openings. The steepness the incline will also change how effective the aperture is. If the screen media is on an angle, when the screen is inclined, the opening is reduced. You may need to choose a larger aperture size to compensate for this, especially for near sized material. If the screen is horizontal the particles will fall straight through, when it is angled the area to fall through is reduced.
• If you have strict specifications on producing a particular shaped product you will need to consider using a screen media that helps sort this type of material. This will likely reduce production but will be much more selective in its sorting.
• If you have large particles of material you need to consider the strength and durability of the screen media you are using.
• Moisture content – If there is a high moisture and clay content in the material this will likely blind the screen media. This can be reduced with the type of screen media chosen.
• How the material is fed into the machine – The material should be consistently fed into the machine and quickly spread over the full width of the screen deck so the entire surface of the screen is utilised for maximum efficiency. It is important the screen is not overloaded which would make the smaller particles unable to fall through all the material. Feeding material from excessive heights will cause early wear on the screening media.

What Type of screening media should you choose?

Top Deck woven wire/mesh, bottom deck ripple screen!

The most popular screen media is a woven mesh as they provide a high screening area, are precise and are usually cheaper. They come in different weaving styles and geometries such as square or rectangular. If they are made of quality products they should withstand high abrasion, impact and tensioning. This type of mesh can however be subject to blinding and pegging.

Ripple screen and Piano wire

Self-cleaning screens help overcome the problem of blinding or pegging with crimped or straight wires that vibrate independently of each other when activated by the vibrating screen box and the weight of the material.

This helps increase production and the life of the screen mesh. This mesh is more expensive initially, however over time they show their value for money. Common names for this type of mesh are, ripple screen, Piano or harp wire.

Polyurethane screens

Polyurethane screens are very good for high abrasion materials. They are very low maintenance and easy to install. The downside to this is there is less open area but it is resistant to blinding and has a long life.

Rubber screens

Rubber screens can be extremely easy to install, which provides OHS benefits. They are suitable for high abrasive and high impact material and are great for pre-screening and scalping especially when there is a high percentage of large rocks or material being dropped on it from a significant height. They are also resistant to blinding due to the flexibility of the rubber. Often the apertures are cut conically to increase throughput – that is, the opening is smaller at the top and larger at the bottom.

Grizzly bars

The Grizzly bars as shown on the Portafill 3000ST are metal bars set on an incline in a stationary frame. They are very heavy duty and their best application is for separating unwanted materials before processing, scalping and for high tonnages.

Finger screens

Fingers screens are a great choice for wet sticky materials especially pre-screening and scalping. The vibration from the screen box and fingers spreads the material across the deck. There is no problem with blinding and plugging as the screens are self-cleaning.

Punch plate

Punch plate can handle high abrasion and high impact and is mainly used for scalping and pre-screening of material. They can handle bigger feed size and are very heavy duty.

PU Mesh

PU Mesh is a steel wire mesh that is coated in a polyurethane material. This is more flexible then standard mesh and provides greater durability with a much longer life and a high open area. It also creates a secondary vibration due to it not needing as high a tension as steel mesh, helping keep the screen area clean. The polyurethane coating reduces the ability of the material to stick to the mesh and cause blinding. Although there is a higher initial cost it is worthwhile especially in sticky material.

De-clogging rods

These polyurethane rods are attached to the screen and sit on top of the screen media. As the screenbox vibrates they move and bounce dislodging and stopping any built up material on the screen media. They may not be suitable for smaller finer wire mesh screens as the rods could damage the wire.

If you are having issues with your screens breaking consider the following:

• Ensure material is fed evenly across the whole width of the screen bed ensuring full use of the screening surface
• Reduce feed height to minimize screen damage
• Check the screen media is fitted correctly and tensioned. If the screen media is able to move around vibrating and banging against the support bars this will cause damage to the screen media.
• Check the tension again after an hour or hour and a half of operating after initial installation as the screen media is likely to stretch with the first use.
• Make sure the stringer bars sit in line with the decks support bars
• Check that the clamp bars and rubber channel are not worn out, damaged or missing as they can allow material to wedge between the screen media and screen-box rails.

At the end of the day the screen media you choose can make a significant difference to how well your machines perform. They can determine if you meet specifications and how quickly you can produce the required quantities. It can also reduce OHS risks and effect your bottom line. Take the time to investigate thoroughly the best screen media for your application – it’s worth the effort.

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