Lancaster Products Roll Crushers reduce difficult-to-crush material in a single pass.

Lancaster Products Roll Crushers are designed for long life with a minimum of maintenance. These crushers reduce – in a single pass- material previously requiring primary and secondary crushing. The crushing rolls turn toward each other, confining all crushing to the area where the teeth mesh. Both rolls are timed to rotate at the same speed to maintain a true – and highly effective – crushing action.

CONSTRUCTION

Lancaster Products Roll Crusher

The Lancaster Products Roll Crusher is a compact unit built around a rigid cast frame. It is powered by a VFD gear drive unit. The high alloy steel shafts are driven by a heavy-duty chain operating in an enclosed oil bath. All parts coming in contact with the process material are replaceable and are made of wear-resistant alloys. Replaceable comb plates and cheek plates at the ends and sides of the housing prevent material from bypassing the rolls.

  • Crushing teeth are cast of a hard and tough alloy in replaceable segments.
  • The large oversized bearings are outboard, self-aligning and protected by mechanical seals.
  • Protection from shock loads is provided through the VFD.
  • Shaft outlets in the frame are equipped with mechanical seal assemblies.
  • Oversized, sealed, spherical roller bearings are supported by large castings rigidly mounted to the crusher frame castings and remotely located from the crushing area.

HOW IT WORKS

Lancaster Products Roll Crusher rolls rotate toward each other, confining all crushing to the area where the teeth mesh.

  • Both rolls are timed to rotate at the same speed to maintain a true crushing action.
  • All material entering the crusher pass through the mounted twin shaft rolls.
  • Since the relative positions of shafts are rigidly fixed, any trapped material will not separate the rolls. This prevents oversize material from passing through the crusher.
  • Crushed particle size can be varied from ¾ inch to 2 inches by changing the distance between the twin crushing rolls. Top and bottom openings have drilled mounting flanges. The crushing gap is adjustable by shimming the pillow blocks.

LANCASTER ROLL CRUSHER MODELS

Lancaster Model 12 x 18 Roll Crusher

Lancaster Model 48 x 32 Double Roll Crusher

Roll opening: 12″ x 18″
Roll opening: 48″ x 32″
Each roll opening: 24″ x 32“
Drive: 5 HP
Drive: 30 HP
Capacity: Up to 3 ton/hour
Capacity: Up to 60 tons/hour

Lancaster Products
920 Mechanic Street
Lebanon, PA 17046

Local: 717.273.2111
Toll Free: 800.447.7351

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Press Release: Bradley Pulverizer Acquired By Lancaster Products Owner

For Immediate Release Contact:
Curt Snyder 717-273-2111
[email protected]

BRADLEY PULVERIZER ACQUIRED BY LANCASTER PRODUCTS OWNER

Allentown, Pennsylvania, January 17th, 2020 – Bradley Pulverizer is pleased to announce new ownership. Lancaster Products & Kercher Enterprises’ owner Curt Snyder acquired the assets of Bradley Pulverizer through an affiliate effective on January 14th, 2020. Bradley Pulverizer specializes in the design, manufacture, and supply of pulverizing systems for fine and semi-fine grinding of hard, friable, abrasive materials for various applications throughout the world.

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The Effect of Rotor Styles on High Shear Mixing

In addition to the rotating pan, all high shear mixers manufactured by Lancaster Products larger than a K3.5 have two independently motor driven mixing tools inside the pan which are responsible for proper mixing, pelletizing, and granulating of materials: the plow and the high speed rotor.  The plow continually sweeps the entire surface of the pan bottom to prevent material from accumulating on the bottom and enhances the overall mixing action.  However, the most important tool of all is the high-speed rotor, which rotates counter direction to the pan causing a shearing action inside of the mixing cavity.  This high-speed rotor not only agitates the mixture, but significantly influences the control of the entire process.  While there are just two main style of standard rotors, we can custom configure the rotor to optimize all mixing processes.

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