CrusherSelection Guide

From material hardness, incoming and outgoing material particle size, processing capacity to production line configuration, the system matches appropriate crushing equipment.

covers laboratory and industrial productionA variety of crushing principles are availablesupports non-standard production line combinationsprovides free material testing

Material hardnessMohs hardness and toughness

Incoming and outgoing material particle sizeMaximum feed and target fineness

Material formBlocks, particles or fibers

Processing capabilitiesBatch and hourly output

Moisture contentDry, moist or sticky

Cleanliness requirementsMaterials and Pollution Control

1. Crushing equipment type selection

Different crushing principles are suitable for different hardness, toughness, feed particle size and target fineness.

Model/parameters	Speed (RPM)	Motor power	Production volume	Feeding particle size	Discharging granularity	Weight	size
Experimental jaw crusher	560~1400rpm	0.75kw	50Kg/h, specifically confirmed according to the specific gravity of the material	<35mm	0.01~8mm	105kg	690x510x590mm
Double roller crusher	52r/min	1.5kw	300kg/h related to material characteristics	stainless steel roller≤20mm (low hardness and brittle materials) ≤10mm (according to the characteristics of crispy materials) ≤5mm (high and low hardness brittle materials) Corundum (high alumina ceramic)≤10mm (according to the characteristics of crispy materials) Nylon≤10mm (according to the characteristics of crispy materials)	0.1~3mm	about 220kg	about 950x620x970mm
Tooth roller crusher	52r/min	1.5~3kw	70~600kg/h	10~80mm (according to material characteristics) is suitable for flaky soft and crunchy materials	0.5~5mm	-	660x800x930mm 880x1020x1140mm
Jaw Crusher	350~650r/min	1.5~5.5kw	45~5000kg/h	≥35mm	0.1~45mm	100~500kg	-

Complete preliminary selection in three steps

Look at the materials first

Clear material type and hardness
Whether it contains water, viscosity, and is easy to agglomerate Does
have hardness/contamination requirements?

Look at the granularity

Confirm the maximum feed particle size
Determine the target discharging particle size range
Choose the appropriate crushing method

Finally, look at production capacity and technology

Clarify the required processing volume (capacity)
Matching process flow and equipment combination
Comprehensive cost and maintenance considerations

The golden rule of core selection

Use real materials and target parameters to drive equipment selection

2. Detailed explanation of core selection dimensions of crusher

The maximum feed determines the equipment entrance and first-level crushing method, and the target particle size determines whether multi-level crushing is required.

1. Select the machine model according to the hardness of the material

Choose a crusher with an appropriate mechanism based on the hardness of the material (refer to Mohs hardness), taking into account crushing efficiency and equipment life.

Mohs hardness scale and common materials

2. Selection according to feed particle size and target discharge

Select the appropriate crushing process based on the raw material particle size and target discharge particle size.

Bulk raw material

Feed > 100 mm

medium broken

10–50 mm

finely chopped

< 10 mm

Demand dimension	Recommended model	Description
Maximum feed particle size	Experimental Jaw Type / Jaw Type / Tooth Roller Type	The larger the feed material, the more you should choose a model with a better match between the feed port size and the crushing cavity.
Target discharging particle size	Double roller type / gear roller type	The pair-roller type discharges materials more evenly, and the toothed-roller type is suitable for medium crushing and can reduce over-crushing.
Particle size uniformity requirements	Double roller type / gear roller type	The pair-roller type has a more uniform particle size, while the tooth roller type has a more concentrated particle size.
Whether adjustable discharging is required	Double roller type / gear roller type	Both can control the discharging particle size by adjusting the roller gap.

3. Risk of moisture, viscosity and clogging

Combining the moisture content, viscosity and dust characteristics of the material, anti-sticking, anti-blocking and dust removal measures are configured in advance.

High water content materials are easy to adhere

The feed material is easy to stick to the wall, and the screen and discharge port are easy to block.
can easily cause poor stacking and blocked discharge.

Equipment Recommendations

Choose a structure with smoother channels
is equipped with scraper or anti-stick cleaning device
Try to control the moisture content of the feed material

Pay attention to preventing clogging of sticky materials

The material is highly viscous and easy to stick to rollers and walls.
Fine screens and narrow channels are more likely to clog

Equipment Recommendations

gives priority to roller or toothed roller structure
Avoid fine screens and complex cavities
Clean regularly to keep the discharge smooth.

Dust sensitive scenes

Dust will affect the environment and equipment life
has higher requirements for sealing and dust removal

Equipment Recommendations

Select the closed inlet and outlet structure
reserves dust removal interface and configures dust collection
gives priority to low dust operation mode

4. Selection according to processing volume and process stage

Select appropriate equipment and processing capacity range according to different stages from laboratory, small test, pilot test to continuous production.

Lab sampleLab

Experimental jaw crusher (new model)

Small amount of sample pretreatment / desktop type

Small test enlargementQuick test

Experimental jaw crusher (old model)

Speed: 1400rpm

Medium crushing/even dischargingPilot test

Double roller crusher and tooth roller crusher

Double roller/gear roller crusher

About 70–600 kg/h (depending on machine model and material)

Continuous ProductionProduction

Jaw crusher (old model)

Processing capacity: 45–5000 kg/h

Processing capacity reference (kg/h)

0.11101001,00010,000

◎ Match equipment scale by stage to avoid waste of resources◎ Ensure particle size and production capacity targets, and improve process stability◎ Reserve upgrade space to meet future production capacity expansion needs

5. Selection shorthand

Quickly master the 6 core principles of selection to help make efficient decisions.

High hardness depends on structural strength first

The higher the hardness, the more you need to choose a model with stronger structure.

For larger feed materials, give priority to the size of the feed port.

The size of the feed port determines whether the material can be fed smoothly.

For fine discharging, attention should be paid to the crushing method

For rolls or toothed rolls, attention should be paid to roll gap and particle size control.

For materials with high water content, first look at the anti-clogging ability

Anti-sticking and anti-clogging design is the key to stable operation.

Production capacity determines model specifications

The processing capacity determines the device model and power configuration.

High purity applications focus on contact materials

Stainless steel, corundum and other materials can reduce sample contamination.

3. Illustration of the working principle of common jaw crushers

Jaw crushing principle

Materials enter the crushing chamber
Moving jaw crushing
reaches the discharge port and discharges the material, with coarse particle size and large crushing ratio.

Pair-roller crushing principle

Materials enter from above
Twin rollers rotate in opposite directions for extrusion
is discharged from below after crushing, the particle size is uniform and adjustable

Hammer crushing principle

Materials enter the crushing chamber
High-speed hammer impact crushing
The hammer head and tail are forced to discharge materials, with high fineness and large processing capacity.