Extensive Range of Hammers available from 350 to 12,000 ft./lb. Pedestal Controlled, Radio Controlled and Seat Controlled options. Booms and Arms manufactured from High Strength Steel. Made to Measure for Easy Installation and Perfect Operational Geometry.

 — A cone crusher operates by rotating the mantle and the concave at high speeds, which causes rocks to compress and then break into smaller pieces. The crushing action is caused by the closing of the gap between the mantle and the concave, which is known as the crushing chamber.

This publication will consider the use of hydraulic attachment tools in underground rock excavation applications - both in mineral extraction from underground mines and also developing tunnels, shafts, chambers and passageways. Going underground is rapidly becoming the only viable option for meeting the infrastructure needs of the 21st century.

 — There are several types of rock crushers, each with its unique mechanism and use. The most common types include jaw crushers, cone crushers, impact crushers, and gyratory crushers. • Jaw crushers are used for primary crushing. • Cone crushers are used for secondary crushing and fine crushing.

Crushers for Bulk Materials. Crushers and breakers are used to reduce size of mined and quarried material for further processing or to size suitable for the intended end use. The goal of a crusher is to crush the given material in to the material with certain size and shape.

 — The rock hammering method of boulder breaking is a process of hammering the boulder by either a hydraulic or pneumatic hammer until the boulder breaks. The hammer is usually mounted on a boom. The motor, hydraulic pump, and oil reservoir are usually located near the boom.

 — Hammer Crusher. Hammer crushers utilize high-speed rotating hammers to impact and crush materials. The crushed materials are then propelled at high speed towards the impact plate and grate bar, undergoing multiple impacts.

 — The hammer mill is the best known and by far the most widely used crushing device employing the impact principle of breaking and grinding stone. Thus far we have described machines which do a portion of their work by impact, but the only machine described in which this action plays an important role was the sledging roll type and …

 — Primary crushing is the first stage in the comminution process and involves breaking down large rocks into smaller pieces of a size that can be handled by the downstream machinery. The purpose of primary crushing is to reduce the size of the material to a level that can be handled by the secondary and tertiary crushers.

 — Rock-on-rock crushers have pockets filled with rock lining the entire circumference of the chamber. Shoe and anvil VSI crushers have composite metal alloy anvils positioned to maximize the impact of the material that is thrown against the stationary anvils via centrifugal force.