Working Principle
The 2PLF grading tooth roller crusher is driven by dual motors through a reducer.
After the motor starts, the coupling transmits torque to the reducer and drives both rollers to rotate toward each other.
When material enters the crushing chamber, it is subjected to the shearing, splitting, and extrusion force generated by the rotating toothed rollers.
Once the material particle size reaches the required discharge size, it falls from the discharge port under gravity.
This machine is designed for uniform particle size, high crushing efficiency, and low over-crushing rate, making it especially suitable for materials with medium hardness.
Structural Features
This crusher mainly consists of electric motor, reducer, coupling, tooth rollers, frame, sealing cover, safety protection device, and other components.
(1) High reliability & easy maintenance
The crusher adopts a combined structure for the drive system, allowing convenient installation and maintenance.
The motors and reducers are independent of each other and connected through the coupling, ensuring safe operation while simplifying replacement.
(2) Robust and durable crushing components
The toothed rollers are cast and welded together, with excellent wear resistance and high strength.
The crushing teeth are arranged in a unique spiral distribution, providing material gripping, shearing, and breaking capability while improving crushing efficiency.
(3) Adjustable discharge size & overload protection
The discharge opening is adjustable.
The machine includes hydraulic or mechanical spring protection to prevent damage when unbreakable materials enter the chamber.
This feature greatly improves operational safety and stability.
(4) Modular design for rapid maintenance
The crushing section, drive system, and housing are modularized.
The machine’s structure allows rapid inspection and replacement of wear parts, minimizing downtime.
(5) Stable operation & low energy consumption
The rollers rotate at low speed yet deliver strong crushing force.
This provides low noise, low dust, and low power consumption, making it suitable for continuous operation.
(6) Wide applicability
It is capable of crushing coal, limestone, shale, gangue, coke, slag, clay, industrial solid waste, and other materials.
The crusher is widely used in coal preparation plants, power plants, mining, chemical industry, building materials, and other fields.
Technical Parameters
| Model | Material Compressive Strength (MPa) | Feed Size (mm) | Discharge Size (mm) | Capacity (t/h) | Total Motor Power (kW) |
|---|---|---|---|---|---|
| 2PLF60 | ≤160 | 100–400 | 100–150 | 150–600 | 100–270 |
| 2PLF80 | ≤160 | 100–400 | 100–150 | 150–600 | 120–320 |
| 2PLF10 | ≤160 | 300–800 | 200–300 | 300–800 | 150–400 |
| 2PLF12 | ≤160 | 500–1200 | 300–500 | 500–1500 | 320–710 |
| 2PLF14 | ≤160 | 300–1400 | 120–500 | 300–800 | 320–710 |
