Blow Bar

Use of the product:

Supporting the use of counterattack crusher, suitable for mines, construction, roads, water conservancy and other fields, used for crushing and processing of all kinds of medium and hard materials, completing material crushing through high-speed impact, and helping to promote production efficiently.

Application scenario:

Blow Bar (plate hammer) is one of the core wear-resistant and fragile components in impact crushers. It is widely used in mine crushing, sand and stone aggregate production lines and building materials industries. It is used for high-speed impact crushing of materials. It is a key working part that affects the crushing efficiency and the grain type of the finished product.

In practical application, the plate hammer is installed on the rotor of the counterattack crusher, which generates a strong impact force through high-speed rotation, crushing the material and throwing it to the counterattack plate for secondary crushing. In the sand and stone production line, Blow Bar is mainly used in the medium crushing and fine crushing stages, especially for the production of mechanical sand and building aggregates with high requirements for finished grain type.

In addition, this component is widely used in the crushing and processing of granite, limestone, basalt and other medium and high hardness materials. It is widely used in cement, road engineering and infrastructure construction industries. It is one of the most important wear-resistant consumables in impact crushers.

FAQ：

Q：What are the mainstream wear-resistant materials of Blow Bar, and the applicable working conditions are different?

A：1. Mn13Cr2 standard high-manganese steel plate hammer: strong toughness, resistance to medium impact, low procurement cost, suitable for limestone, coal gangue, construction waste and other low-abrasion medium-abrasion medium-soft materials, the first choice for small and medium-sized sand and stone factories; 2. Mn18Cr2 high chromium high manganese alloy plate hammer: stronger impact processing hardening effect, wear-resistant life increased by 30%, suitable for dolomite, medium hardness granite and other hard ores;

Q：What factors will shorten the service life of Blow Bar?

A：1. The higher the hardness of the ore, the sharper the edge of the gravel, and the faster the wear consumption; 2. Unbreakable metals such as steel bars and iron blocks enter the crushing cavity, directly causing the plate hammer to crack and notch; 3. Long-term partial load of the feed, the plate hammer continues to focus on one side, and the one-sided quick grinding; 4. The gap between the plate hammer and the counterattack plate is unbalanced, and the material squeezing friction increases the loss; 5. The equipment is overloaded and fully loaded for a long time, exceeding the impact load-bearing limit of the plate hammer design.

Q：Does the whole PF counterattack blow bar always have it in stock to support long-term foreign trade bulk supply?

A：PF full series of models Mn13Cr2, Mn18Cr2, Cr20 high chrome plate hammers have sufficient spot inventory all year round, and its own complete cast steel production line can be shipped in batches all year round. Support overseas mines, mixing stations, recycled aggregate factories for long-term fixed collection and agents’ annual stocking, and can be packaged and shipped with a whole set of counter-back plates and lining plates.

Q：Does the whole PF counterattack blow bar always have it in stock to support long-term foreign trade bulk supply?

A：PF full series of models Mn13Cr2, Mn18Cr2, Cr20 high chrome plate hammers have sufficient spot inventory all year round, and its own complete cast steel production line can be shipped in batches all year round. Support overseas mines, mixing stations, recycled aggregate factories for long-term fixed collection and agents’ annual stocking, and can be packaged and shipped with a whole set of counter-back plates and lining plates.

Q：Do you support the special Blow Bar customisation for non-standard and old imported models?

A：Support drawings, samples and 3D modelling reproduction customisation. It can produce thickened heavy-duty models, lengthened models, special locking holes, and special plate hammers for old modified models. The size tolerance is strictly controlled, and it can be used as a set of non-standard counterattack plates.

Q：What wear and damage in the Blow Bar must be replaced immediately?

A：1. The wear thickness of the wear-resistant working surface exceeds 1/2, and it cannot be used for the second time; 2. There are notches, cracks and grooves perforations on the plate hammer body; 3. Severe wear on one side, the finished aggregate needle sheet continues to exceed the standard, and the production capacity is greatly reduced; 4. The wear and tear of the locking installation hole expands, the bolts are loosened frequently, and the equipment is vigourously vibrated and noisy.