It’s a primary crusher. The jaw crusher is a machine for crushing rocks and other hard and abrasive materials, such as granite, ores or recycled concrete, usually for industrial purposes. The crushing device consists of a fixed plate and a swing plate called jaws between which the rock is trapped and crushed. A motor and a belt transmit the movement to an eccentric shaft that drives the movable jaw by rotation. A spring returns this moving jaw to let the crushed materials gradually descend into the crusher. When the materials are small enough, they fall into the space between the crusher’s two jaws. The crusher breaks the rock into small stones that are used in particular for manufacturing concrete for construction and roads.
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Jaw crushers use a rudimentary and reliable technology that does not require much maintenance or engineering knowledge. They are the most popular crushers in the world. Jaw crushers are particularly suitable when the main objective is to reduce large blocks into smaller pieces that can then be processed by other machines.
Advantages:
Low maintenance and operating costs because it has few moving parts
Reduces the raw material to about 150 mm
Disadvantages:
Not suitable for small material requirements (smaller than 150 mm). If a smaller grain size is required it can be used in combination with other crushers.
Not suitable for handling clay or metal mixed with rock.
Navigating sandy terrains in your 4WD can be exhilarating, but it also demands careful preparation to be ready for unexpected vehicle recovery. In our comprehensive buyers' guide, we delve into the essential tools that will help with successful sand recoveries.
The simplest and most important sand recovery item you can own is the trusty long-handled shovel which makes removing sand from around your tyres, diffs and chassis easier. A shovel also has multiple uses, including moving coals around the fire or digging a hole for the toilet. I’ve been using a fibreglass combo shovel for years and now it is permanently mounted on my rooftop tent.
1. Ironman 4x4 Combo Shovel
2. Bushranger Diggar Shovel
3. Mean Mother 4WD Multi Shovel
4. Bunnings Shovel
The first thing you should do before you even drive in the sand is to reduce your tyre pressure as this increases the tyre footprint and provides better flotation which in turn improves your traction. You may need to lower tyre pressures more when stuck as you may be able to just drive out but don’t make sharp turns when pressures are very low, or you might roll the bead off the rim. Having used the Indeflate for the past four years, I’ll never go back to one that removes the valve stem. Not only can I deflate two tyres at a time, but it also equalises the pressure between two tyres and can be used to reinflate two tyres at the same time.
1. MAXTRAX Indeflate
2. MAXTRAX Indeflate Digital
3. Bushranger Tyre Deflator and Gauge
4. Clearview Tyre Spider
Recovery boards are the second-best sand recovery items you can have. They can be used to shovel sand from around your tyres before providing crucial traction when you most need it. Generally sold in pairs and with many mounting solutions, they are easy to carry. My TRED PRO’s have come in handy in the desert and snow and because I travel solo, I carry four traction boards at all times plus they come in handy for levelling the Prado at camp.
1. TRED PRO Recovery Boards
2. MAXTRAX Xtreme Recovery Boards
3. MAXTRAX MKII
Chunlei contains other products and information you need, so please check it out.
4. GoTreads XL Folding Recovery Boards
A snatch strap or recovery rope is another sand recovery item that can make the extraction easier. Because they have some elasticity, a small amount of force creates a strong rebound that pops the bogged vehicle out of its predicament. The benefits of recovery rope over snatch straps are they are lighter and offer more stretch. Having recently replaced all my straps and D-shackles, at a significant cost, my recovery bag is significantly lighter than it was. You’ll also need rated recovery points, shackles, a cable dampener or two and another vehicle to complete the package. NEVER SNATCH OFF A TOW BALL.
1. Saber Offroad 12500kg Kinetic Recovery Rope
2. MAXTRAX Kinetic Rope
3. MAXTRAX Recovery Hitch
4. Factor 55 Tow Strap
5. MAXTRAX Core Shackle
A 12V winch can be used in sand recoveries, especially in deep sand, when the tide is closing in or if your vehicle has a nasty lean on a dune edge. If travelling solo and there is nothing solid to winch from, there are other solutions that include burying your spare tyre in the sand or using a sand anchor. Always use a cable dampener or two for safety and nominate one person to oversee the recovery.
1. WARN VR Evo winches
2. TJM TORQ 12000LB Winch with Synthetic Rope
3. Ironman 4x4 12000LB Monster Winch with Synthetic Rope
4. Bushranger REVO 10,000LB Winch with Synthetic Rope
Sand anchors are heavy and cumbersome and unless you know how to use them, can often perform below expectation. The Deadman Off-Road Earth Anchor is different, as it packs up small, is lightweight and easy to use, once you’ve dug a big hole in the sand and buried it. For solo travellers, sand anchors may be considered but where to store them often means they are left at home. The other option that works well is burying your spare tyre in the sand, the same as the Deadman anchor.
1. Deadman Off-Road Earth Anchor
2. Sherpa 4x4 Winch Anchor
3. Land Anchor PRT
Once tyre pressures have been reduced, you need a way to reinflate them once out of trouble, so a 12V air compressor is another thing that you should always carry with you. Don’t waste money on an el cheapo compressor, invest in a heavy-duty compressor that will reinflate your big 4WD tyre pressures time and time again. I ran an Ironman 4x4 compressor for 10 years before recently upgrading to the ARB Twin Compressor and air tank and now my tyres are reinflated pronto.
1. Bushranger Black Max Air Compressor
2. Bushranger MAX AIR III COMPRESSOR
3. TJM Pro Series
In the world of off-roading, preparedness is the ultimate key to a worry-free adventure. Even if you find yourself fortunate enough to avoid getting bogged down in sand, the tools covered in our guide remain invaluable for your peace of mind. As a responsible explorer, you might also become the hero for someone else's stuck vehicle by lending a hand and your well-equipped toolkit.
At Hema Maps, we strive to provide the most comprehensive and accurate maps and guides for outdoor enthusiasts looking to explore Australia's natural wonders.
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