Laboratory Jaw Crusher 200x300mm Opening for Primary Crushing of Ores and Aggregates

Product Overview

This heavy-duty laboratory jaw crusher is engineered for medium-size primary crushing of ores, aggregates, and industrial materials with feed sizes up to 180 mm. Its deep crushing chamber and robust construction deliver high throughput and uniform product sizing, making it a reliable solution for sample preparation and pilot-scale processing.

Engineered for demanding applications in mining, metallurgy, construction, and geology, the unit handles materials with compressive strengths up to 320 MPa. It excels at reducing drill cores, blasted rock, ceramics, and hard aggregates to a consistent 10–20 mm product, compatible with further grinding or direct analysis.

With precision-machined components, a centralized lubrication system, and easy-to-replace wear parts, this jaw crusher offers low-maintenance operation and long service life, ensuring continuous productivity in the busiest laboratories.

Key Features

• Deep Symmetrical Crushing Chamber: The cavity profile is engineered to provide a high stroke at the feed end and a short stroke at the discharge, creating a powerful crushing motion that reduces plugging and uneven wear. This design increases feed acceptance and throughput while producing a cubical product.
• Exceptional Reduction Ratio: In a single pass, the crusher achieves a size reduction ratio typically exceeding 4:1, delivering a product with a narrow particle distribution. This minimizes the need for secondary crushing stages and ensures consistent feedstock for downstream mills or presses.
• Shim-Type Discharge Adjustment: A simple wedge-and-shim system allows the operator to quickly adjust the closed side setting from 10 to 20 mm without dismantling the machine. The external adjustment mechanism enhances flexibility and reduces downtime when switching between different product requirements.
• Centralized Lubrication System: All grease points are routed to a single manifold, facilitating rapid and thorough lubrication. This feature not only simplifies daily maintenance but also ensures proper bearing protection, significantly extending component life and maintaining alignment accuracy.
• Heavy-Duty Frame and Wear Parts: The crusher frame is fabricated from high-strength structural steel with rib-reinforced side plates to absorb shock loads. Jaw plates and cheek liners are cast from manganese work-hardening steel, providing exceptional abrasion resistance and a long lifespan, even when processing silica-containing materials.
• Energy-Saving Design: Optimized kinematics, low-friction spherical roller bearings, and direct V-belt drive reduce power consumption by 15–30% compared to equivalent machines. In integrated systems, the crusher’s efficiency often contributes to overall energy savings of over 50%, lowering operating costs substantially.
• Environmental and Operator Safety: Sealed bearing housings and dust-sealed labyrinth rings minimize dust emissions, while the low-rpm operation keeps noise levels within occupational health limits. The unit can be easily integrated into existing dust extraction systems for a cleaner workspace.
• Versatile Installation Options: The base frame includes standardized mounting holes for optional accessories such as an elevated support stand, feed hopper, and discharge conveyor. This enables quick integration into automated sampling systems or direct coupling to pulverizers and dividers.

Applications

Technical Specifications

Why Choose This Product

• Unmatched Durability: The crusher’s eccentric shaft is supported by heavy-duty spherical roller bearings in a dust-proof housing, while the frame’s ribbed construction withstands high cyclic stresses. This design has been validated in continuous-duty mining labs, where it regularly operates 16 hours per day with minimal maintenance.
• Precision Output Control: The shim-adjusted discharge setting provides repeatable closed-side settings down to 10 mm, ensuring that every batch meets tight particle size specifications. This precision reduces the need for re-crushing and improves the efficiency of subsequent sample dividers or pelletizing presses.
• Customizable Wear Solutions: A range of jaw plate profiles (corrugated, straight, or toothed) and liner materials (manganese steel, chrome alloy, or ceramic) are available to match specific feed characteristics, optimizing wear life and product shape for each application.
• Rapid Serviceability: Jaw plates and cheek liners can be changed in under 30 minutes thanks to the simple wedge clamping system. Combined with accessible lubrication points, maintenance is quick and safe, maximizing productive crushing time.
• Total Cost of Ownership: Lower power draw, extended wear-part intervals, and minimal unplanned downtime combine to deliver one of the most competitive life-cycle costs in its class, making this crusher a sound long-term investment for any materials testing facility.

To learn more about how this laboratory jaw crusher can integrate into your sample preparation process or to request a quotation, contact our engineering team today.