Mining Laboratory Double Roll Crusher for Coal, Ore and Mineral
Samples
The SZΦ250 Laboratory Double Roll Crusher is a high-efficiency
laboratory crushing machine developed for mineral sample
preparation. It features two precision-machined alloy steel rollers
that rotate in opposite directions to crush materials into uniform
particle sizes.
The machine adopts a compact structure with an enclosed crushing
chamber to reduce dust generation during operation. Its adjustable
discharge gap allows users to control the final particle size
according to laboratory testing requirements.
With stable performance, easy maintenance, and low operating noise,
this crusher is widely used before grinding, flotation testing,
chemical analysis, XRF/XRD analysis, and mineral processing
research.
Key Features
- Uniform particle size distribution
- Adjustable discharge size (1-3 mm)
- Compact laboratory design
- Stable and continuous crushing performance
- Low vibration and low operating noise
- Easy operation and maintenance
- Durable steel structure
- Suitable for continuous laboratory use
- Ideal for sample preparation workflows
Applications
Suitable Materials
- Gold ore
- Copper ore
- Iron ore
- Lead-zinc ore
- Nickel ore
- Manganese ore
- Coal
- Limestone
- Quartz
- Rocks
- Metallurgical materials
- Geological samples
Industry Applications
- Mining laboratories
- Geological institutes
- Universities
- Metallurgical laboratories
- Coal laboratories
- Building material laboratories
- Research centers
- Quality inspection laboratories
Technical Specifications
| Model | SZΦ250×75 | SZΦ250×125 | SZΦ250×150 |
|---|
| Feed Size | ≤13 mm | ≤13 mm | ≤13 mm |
| Discharge Size | 1-3 mm (Adjustable) | 1-3 mm (Adjustable) | 1-3 mm (Adjustable) |
| Roller Material | Chromium Steel | Chromium Steel | Chromium Steel |
| Capacity | 300 kg/h | 450 kg/h | 600 kg/h |
| Motor Power | 1.5 kW | 3 kW | 3 kW |
| Voltage | 380V / 50Hz | 380V / 50Hz | 380V / 50Hz |
| Weight | Approx. 310 kg | Approx. 345 kg | Approx. 356 kg |
| Overall Dimensions | 1180×550×1060 mm | 1180×550×1060 mm | 1180×550×1060 mm |
Safety Operation Instructions
To ensure safe operation and extend the service life of the
equipment, please follow the safety instructions below.
- Qualified Operators: Only trained personnel should operate the machine. Operators must
carefully read and understand the instruction manual before use.
- Never Service While Running: Do not adjust, clean, lubricate, or repair the machine while it is
operating. Always switch off the power supply and wait until all
moving parts have completely stopped before performing any
maintenance.
- Proper Electrical Protection: The machine must be properly grounded. Electrical cables should be
installed in insulated conduits. It is recommended to install a
residual current device (RCD) or leakage protection device
according to the operating environment.
- Overload Protection: To prevent motor overheating or equipment damage caused by
overloading, an overcurrent protection device should be installed
based on the operating frequency and the characteristics of the
processed materials.
- Inspect Safety Devices: Before each operation, check that all electrical protection
devices, safety guards, and protective covers are in good condition
and functioning properly. Any potential hazards must be eliminated
before starting the machine.
Key Advantages
- Excellent Particle Size Control: The adjustable roller gap provides consistent particle sizes for
laboratory testing.
- High Crushing Efficiency: Opposite rotating rollers ensure efficient crushing while
minimizing excessive fines.
- Durable Rollers: Manufactured from high manganese steel for excellent wear
resistance and long service life.
- Laboratory-Friendly Design: Compact footprint saves laboratory space while maintaining high
processing capacity.
- Low Maintenance: Simple mechanical structure allows quick cleaning and convenient
roller replacement.
Packaging
- Export Wooden Case
- Moisture-proof Packaging
- Shock-resistant Protection
- Suitable for Sea Freight and Air Freight
Optional Accessories
- Laboratory Jaw Crusher
- Disc Pulverizer
- Sample Divider
- Vibrating Screen
- Drying Oven
- Dust Collection System
Frequently Asked Questions
What materials can this crusher process?
It is suitable for ores, rocks, coal, coke, limestone, quartz, and
other medium-hard materials.
Can the output size be adjusted?
Yes. The discharge gap can be adjusted to obtain approximately 1-3
mm particle sizes.
Is the roller material wear-resistant?
Yes. The rollers are made of high manganese steel, providing
excellent wear resistance and long service life.
Can the machine operate continuously?
Yes. It is designed for continuous laboratory sample preparation.
Can the voltage be customized?
Yes. Different voltages and frequencies are available upon request.
MPE-100x250 Sealed Jaw Crusher Dust Proof Fine Crushing Rare Earth NdFeB Ceramic Pigment
