Pressure Block

Use of the product:

The supporting jaw crusher is used, suitable for mines, construction, water conservancy, roads and other fields. It is used for all kinds of medium-hard and hard material crushing scenarios, fixed gear plates, side guard plates and other accessories to ensure the smooth and safe crushing operation.

Application scenario:

Pressure Block is a key pressing and fixing part in mine crushing equipment. It is widely used in jaw crushers and some heavy crushing equipment. It is mainly used to fix the jaw plate or lining plate, and to provide a stable pressing force during the operation of the equipment to prevent the parts from loosening or displacement. .

In practical application, the pressure block is usually installed in the jaw plate fixing system of the jaw crusher and used with wedges or bolts to ensure that the jaw plate maintains a stable working state under high impact and high vibration conditions, so as to ensure the crushing accuracy and safe operation of the equipment. In the sand and stone production line, it is an important auxiliary fastener inside the jaw break, which plays a basic role in guaranteeing the reliability of the equipment.

It is widely used in mining, sand and stone aggregate production lines, cement building materials and metallurgy industries. It is especially suitable for high-strength continuous crushing conditions. It is one of the key accessories to ensure the structural stability and safety of the crusher.

FAQ:

Q：What is Pressure Block and what role does it play in PE/PEX jaw crusher?

A：Pressure Block is a special locking accessory for cast steel shell jaw crusher, which is divided into upper pressure block, medium pressure block and lower pressure block. Core role:

1. Lock and fix the jaw plate: rely on the sloping pressure structure to firmly lock the moveable jaw plate and fix the jaw plate, and prevent the jaw plate from moving up and down and shifting left and right when broken;
2. Stabilise the crushing gap: eliminate the looseness of the jaw plate causing the output particle size to be large and small, and ensure the uniform specifications of the finished aggregate;
3. Buffer protection: Disperse the ore impact load, reduce the direct force of the jaw plate bolt, and avoid the bolt breakage and jaw plate falling off causing the whole machine to stop. The jaw breaker of the welded shell relies on bolts to fix the jaw plate. Generally, there is no need to press the block. Only the all-in-one cast steel frame jaw breaker is used.

Q：Which jaw crusher models are suitable for Pressure Block?

A：Adaptable to PE, PEX, EC and JC series all-in-one cast steel shell jaw crusher, covering coarse crushing, medium crushing full-specification models, divided into upper, middle and lower complete sets of pressure blocks, can be supplied with Jaw Plate jaw plate and Cheek Plate edge guard plate.

Q：What are the two mainstream production materials of pressing blocks and the different working conditions?

A：1. Mn13Cr2 high-manganese steel compaction block: strong toughness, anti-squeezing, universal for small and medium-sized limestone, construction waste sand and stone factories, high cost performance; 2. Mn18Cr2 high-chromium-high-manganese alloy compaction: stronger pressure resistance and wear resistance, specially designed for granite, basalt, iron ore and other high-hard mines, long-term high-frequency impact is not easy to deform and crack.

Q：What kind of compaction block should be chosen for crushing granite, river pebbles and other high-hard stone materials?

A：Priority Mn18Cr2 high manganese alloy Pressure Block. The impact force of hard rock fracture is great, and the jaw plate continues to vibrate violently. Ordinary pressure blocks are prone to bevel wear and deformation, and lose the locking effect; high-chromium and high-manganese material is pressure-resistant and does not deform, and the jaw plate is stable for a long time to reduce the frequency of maintenance.

Q：What factors will accelerate the failure of Pressure Block damage?

A：1. The jaw plate is loose for a long time, and the pressure block slope continues to bear the alternating impact load; 2. A large piece of iron enters the crushing cavity, and the whole machine vibrates violently and impacts the pressure block; 3. The bolt locking force is insufficient, and the gap between the pressure block and the jaw plate shakes; 4. Long-term overload operation exceeds the pressure-bearing limit of the pressure block design; 5. The bevel of the pressure block is worn and lacks lubrication, which aggravates friction deformation.

Q：Do you support the special pressing block customisation of non-standard and old imported models?

A：Support drawings, samples and 3D modelling reproduction customisation. It can produce thickened and reinforced wear-resistant models, special bevels, and old-fashioned cast steel jaw-breaking special pressing blocks. The size and inclination strictly match the equipment jaw plate, and the locking is stable and not loose.