For fast and effective reduction of feed material by crushing between the rolls.
Principal of operation:
The hard and brittle geological materials are trapped between the two rotating grooved rolls. One of the roll is given power through a “V” belt pulley system and is fixed on a stationary bearing block. The gap between the roll can be adjusted by a spring loaded screw rod. After the desired gap is adjusted the position is locked by a lock nut.
High pressure Roll Crushers having constant preset load with high pressure hydraulic accumulator are also manufactured.
Provision is made to change the speed of roll electronically.
Ideal for secondary crushing of the ores/minerals like: Magnetite, Hematite, Laterite, Limestone, Bauxite, Manganese Ore, Quartz, Chromite, etc.
The crushing is due to entrapment of particles between the rolls thereby the particle gets ruptured this also facilitates low energy consumption during grinding.
Unique design that operates two rolls with single drive.
Insmart Roll Crushers have got a unique facility of gap adjustment by two screw mechanism that can easily change the nip angle for getting the desired reduction ratio.
Firm design does not require any foundations and gives customer a freedom to shift the equipment as per the requirement.
A range of roll crushers are available to crush with a feed size range of -20 to -3 mm size.
Roll Crusher with grooved & plain rolls of 200mm diameter and 150mm width
Roll Diameter
250 mm (Grooved / Plain)
Rolls width
150 mm
Type of Rollers
Manganese Steel/Hardened Steel
Feed Size
Upto -25 mm
Output Size
Upto -1 mm
Crushing Capacity
~200 Kgs/Hr (depending on reduction ratio, it varies)
Roller Speed
120 rpm
Hopper Feeder
Feed Hopper with size 350 X 350mm provided with screen of 20mm dia openings for protecting the operator hands and oversize particles from entering the crushing zone
Roll Gap Adjustment
The gap between the roll can be adjusted by a spring loaded screw rod from 1-12 mm
V- Belts
One of the roll is given power through a V-Belt pulley system and is fixed on a stationary bearing block
Motor Size
2.25 KW (3 HP) Heavy Duty Motor
Power Supply
3 Phase, 440 V, 50 Hz, AC Supply with neutral earthing
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