THE Experts In Size Reduction
Super Absorbents
Specific & Consistent Size Reduction
Roll Crusher 350/400
roll-crusher-350

OVERVIEW

The Roll Crusher 350 continulously produces narrow particle size distribution of the final product with a minimum portion of dust. Designed for crushing of soft, brittle or hard products up to a Mohs hardness of 3.5-4. Welded steel construction of modular design. 1800 mm roll length, roll diameter 350mm.

KEY FEATURES
• Product-contacted parts of stainless steel with smooth surface.
• Dust-tight crushing chamber, hinged driving motors.
• Adapted to the product to be crushed:
    - Corrugated rolls
    - Smooth rolls
    - Rolls with longitudinal cleats
• Infinitely adjustable roll gap, manually operated.
• Automatic roll gap opening during the starting phase.
• Product feeds by means of roll-feeding system.

COMPONENTS

MACHINE STAND
• Welded design
• Stainless steel product chambers
• Stand walls substantially thick
• Strong longitudinal crossbeams welded to stand walls
• Integrated sealing surfaces for product chamber covers
• Adjustable supports for driving motor
• Lifting eyelets
• Feeding system
• All mounting parts

ROLLS
• Chilled cast rolls 350mm x 1800mm
• Various materials possible
• Front-side roll sealing by V-ring and counter-plates

FEEDING EQUIPMENT
• Roll feeding system with one stainless steel roll having a
   profile suitable for conveyance
• Manually adjustable slide for the hight of the prod.-layer
• Conveying capacity of the roll adjustable by frequency converter

ROLL BEARING ASSEMBLY
• Rolls in self-aligning roller bearings with grease lubrication
• Bearing withrdrawal rings

BEARING HOUSINGS
• Swivel bearing housing on bolts
• On the drive side equipped with fixed rings
• Sealing by 2-lip seal
• Split housing
• Front-bearing housing on bolts
• Tiltable by eccentric bolt

GAP ADJUSTMENT
• Manually by means of threaded spindle
• Scale ring as precise gap indicator
• Shearing pin with predetermined bearing point
• Cup spring assembly protects if foreign materials pass
• Lubricated sliding points
• Adjustment by means of pin spanner

DRIVE MOTORS
• For each pair of rolls, one (1) motor of 40hp, up to 50hp
• Standard motor with 1500rpm

TRANSMISSION
• Connection from the motor to the high-speed roll
   (swivel roll) by V-belts
• Transmissino to the low-speed roll via dual V-belts
• Automatic re-tightening of the V-belt drives
• Various differential speeds

SHEET COVERING
• Drive zones: screwed-on sheet covers of stainless steel
   with ventilation openings

PRODUCT CHAMBER ZONE
• Doors of stainless steel sheet
• Turnbuckle locks
• Safety switches
     - Hinged or fixed
     - Sealing all around

ROLL SEALING
• Front sealing by V-rings
• Counter plates of stainless steel

PRODUCT GUIDANCE
• Vertical product guiding pit
• Stainless steel ledges provided with adjustable scraper blades

GENERAL
• Magnet separator in the inlet zone optional
• Aspiration possible
• Potential compensation
• Completely assembled and wired ready for connection
• Electric contol by PLC and operator panel

APPLICATIONS

Crushing of soft, brittle or hard products up to
a Mohs hardness of 3.5 - 4.5.

OPTIONS

ROLL CRUSHER 350 TYPES
• Type ZWR 350 = Two-Roll Crusher
• Type VWR 350 = Four-Roll Crusher
• Type SWR 350 = Six-Roll Crusher

LITERATURE

roll-crusher-350