Crushing equipment is the key machinery used in mining, building materials, metallurgy, chemical engineering and other industries to reduce large pieces of material to smaller fragments. According to crushing principle, machine structure and application stage, there are dozens of types, systematically listed below.
✅ 1. Classified by Crushing Stage
| Stage | Equipment Types | Feed Size | Discharge Size | Typical Application |
|---|
| Primary | Jaw crusher, Gyratory crusher, Single-stage hammer crusher | ≤1 500 mm | 150–300 mm | Mine & quarry primary crushing |
| Secondary | Cone crusher, Impact crusher, Double-roll crusher | ≤500 mm | 20–100 mm | Secondary crushing |
| Tertiary | Vertical-shaft impact (VSI), High-pressure roll mill, Compound crusher | ≤50 mm | 0–20 mm | Sand making & aggregate shaping |
| Ultra-fine | High-pressure grinding rolls (HPGR), Tower mill, Stirred mill | ≤10 mm | 0–5 mm |
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✅ 2. Classified by Crushing Principle
1) Compression-type Crushers
| Crushing Equipment | Features | Typical Uses |
|---|
| Impact crusher | Impact breaking, good cubical shape, large reduction ratio | Limestone, concrete, C&D waste |
| Hammer crusher | Hammer impact, single-step crushing, high wear parts | Coal, limestone, gypsum |
| VSI (sand maker) | Rock-on-rock / rock-on-iron, fine output, excellent shaping | Manufactured sand, basalt shaping |
3) Roller-type Crushers
| Equipment | Features | Typical Uses |
|---|
| Double-roll crusher | Two rolls compress, controlled size, low over-crushing | Coal, coke, clay secondary crushing |
| High-pressure roll mill (HPGR) | High-pressure bed crushing, energy-efficient, ultra-fine | Iron ore, cement |
4) Compound Crushers
| Equipment | Features | Typical Uses |
|---|
| Compound crusher | Combines hammer & impact principles, high fine-crushing efficiency | Cement raw & clinker tertiary crushing |
| Vertical compound crusher | Vertical shaft, multi-stage crushing, fine discharge | Limest |
✅ 3. Special-purpose Crushing Equipment
| Equipment | Features | Application |
|---|
| Mobile crushing plant | Tire/crawler, integrated unit, flexible relocation | C&D waste, road construction |
| C&D waste crusher | Re-bar cutting, iron removal, light material separation | Concrete, brick & mixed C&D |
| Twin-shaft shredder | Low-speed shear, high torque, low noise | Plastic, tyres, bulky waste |
| Four-roll crusher | Four rolls, three-stage crushing, uniform size | Coke, sintered ore, ceramic raw materials |
✅ 4. Auxiliary Equipment (in crushing circuits)
| Equipment | Function |
|---|
| Vibrating feeder | Uniform feeding, pre-screening soil |
| Vibrating screen | Size classification & de-dusting |
| Belt conveyor | Material transport |
| Magnetic separator / iron remover | Remove tramp metal |
| Sand washer | Wash & dewater manufactured sand |
5. Selection Guide by Application
| Application Scenario | Recommended Combination |
|---|
| Hard-rock sand plant | Jaw + Cone + VSI + Screen |
| Limestone aggregate plant | Jaw + Impact + Screen |
| C&D waste recycling | Mobile jaw + Mobile impact + Iron remover |
| Coal crushing | Double-roll crusher + Screen |
| Ultra-fine powder plant | HPGR + Ball mill |
If you need further equipment sizing based on material hardness, throughput, or product size, please provide details and I will recommend a tailor-made solution.
