A small coal jaw crusher is a compact, robust machine designed to crush coal into smaller sizes for laboratory use, small-scale production, or preliminary crushing in mining operations. Here’s a detailed overview:
Key Features of a Small Coal Jaw Crusher
1. Compact Size
– Designed for limited workspace (e.g., labs, pilot plants).
– Typical feed opening: 100×60 mm to 250×400 mm.
2. Crushing Capacity
– Handles 1–5 tons per hour (varies by model and coal hardness).
– Output size: Adjustable (~10–50 mm).
3. Durable Construction
– Made of high manganese steel or hardened alloy jaws for wear resistance.
– Sturdy frame to withstand vibrations.
4. Power Options
– Electric motor (3–15 kW) or diesel engine for remote operations.
5. Adjustable Discharge
– Wedge or hydraulic system to control output particle size.
6. Applications
– Laboratory coal sample preparation (ASTM standards).
– Small-scale coal processing (e.g., brick kilns, coke plants).
– Secondary crushing after primary coal breakers.
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Popular Models
– SEPC JC 60×100 & 150×250: Lab-grade crushers for sampling.
– PE 250×400: Industrial small-scale crusher (~5 tph).
Buying Considerations
– Feed Size: Match crusher inlet to your coal lump size.
– Moisture Content: Wet coal may require special designs (e.g., non-clogging jaws).
– Maintenance: Opt for mode.jpg)
with easily replaceable jaws and minimal lubrication points.
Safety Tips
– Always feed coal evenly to avoid jamming.
– Wear PPE (dust mask, goggles) due to coal dust generation.
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