What are the crushing machines?

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 <a href="https://www.minevoglobal.com/jaw-crusher.html">Jaw crusher</a>, 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

<a href="https://www.acmegrist.com/category/crushing-equipment">Crushing Equipment</a> 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.