Horizontal Jaw Crusher Medium Hard Material Crushing Laboratory Sample Preparation Equipment

Product Overview

This horizontal jaw crusher is a purpose-built machine for medium to hard material crushing in laboratory sample preparation applications. Employing a curved extrusion principle, it utilizes a moving jaw that travels in an elliptical path against a fixed jaw, generating tremendous compressive force. The unique motion pattern ensures each particle is crushed multiple times as it descends through the chamber, resulting in a uniform product with minimal elongated particles. Constructed entirely from high-grade structural steel and protected by heavy manganese steel wear plates, this system is engineered for decades of reliable service.

The equipment is ideally suited for primary size reduction of brittle materials such as ores, coal, coke, slag, and rock in analytical and quality control laboratories across the mining, metallurgy, power generation, and construction industries. Its high throughput capacity—up to 4.0 T/h depending on model—enables rapid processing of large sample volumes, while the precision adjustable discharge gap allows operators to dial in exact particle sizes ranging from under 12 mm to 40 mm. The fully enclosed design not only contains dust but also reduces cross-contamination between samples, a critical feature for ISO-accredited labs.

Built to operate in demanding environments, this crusher features oversized sealed bearings, a robust eccentric shaft, and a heavy flywheel that stores kinetic energy for smooth, continuous crushing. Vibration-dampening mounts and acoustic insulation ensure quiet operation, while the compact footprint saves valuable bench space. With simple maintenance access and readily available spare parts, this unit offers a low total cost of ownership, making it the preferred choice for labs that cannot tolerate downtime. Every component is machined to tight tolerances and tested under full load before shipment, assuring immediate productivity upon installation.

Key Features

• Curved Extrusion Crushing Technology: Unlike conventional straight-line crushers, the curved jaw trajectory provides a leveraged crushing action that maximizes force efficiency. This design reduces motor load and increases throughput, as materials are constantly churned and repositioned for multiple fracture events within a single pass.
• Advanced Wear Protection: The stationary and moving jaw plates are cast from Hadfield manganese steel, which work-hardens under impact to maintain a tough, abrasion-resistant surface. Cheek liners and the crushing chamber interior are also lined with replaceable wear plates, ensuring that the frame itself never wears. This protective strategy extends service intervals to thousands of operating hours.
• Precision Discharge Adjustment: A quick-release wedge mechanism allows operators to adjust the discharge gap quickly without tools, modifying product size in increments of a few millimeters. Once set, a mechanical lock holds the position securely, guaranteeing consistency throughout the day's run. The adjustment range varies by model but always covers the spectrum required for subsequent pulverization or direct analysis.
• Fully Sealed Dust-Containment System: The entire crushing chamber is enclosed with labyrinth seals and a gasketed inspection door. An integrated dust extraction port can be connected to a standard vacuum system, reducing airborne particulates to near-zero levels. This feature not only improves air quality but also minimizes lost material and cross-contamination between samples.
• Low-Noise Operation: A combination of a dynamically balanced assembly, thick sound-deadening panels, and shock-absorbing feet reduces operational noise to acceptable levels for open-plan labs. The noise level has been measured below 75 dBA in typical operation, allowing the unit to run alongside sensitive analytical equipment without interference.
• Simplified Maintenance Philosophy: Hinged access covers provide clear entry to the crushing cavity for thorough cleaning and wear part inspection. Lubrication points are grouped at a single station, and the belt drive is easily tensioned from the exterior. All wear parts are designed for tool-free exchange, significantly reducing maintenance downtime.

Applications

Technical Specifications

The PP-JA04 series offers five distinct models, each tailored to specific feed size, throughput, and output requirements. All models share a common horizontal design with sealed crushing chamber, curved jaw motion, and wear-resistant liners. The table below summarizes the key performance parameters for each variant.

For applications requiring custom discharge sizes or alternative jaw plate materials, our engineering team can configure a solution. The discharge gap on any model can be further fine-tuned by inserting shims, allowing sub-millimeter adjustments. All models operate on standard 380V/50Hz three-phase power, with other voltages available upon request.

Why Choose This Product

• Decades of Proven Reliability in Harsh Environments: Our jaw crushers have been field-tested in laboratories around the world, from Arctic mining camps to tropical assay labs. The heavy steel frame and oversized bearings are designed to withstand the shock loads and continuous operation that would quickly degrade lighter-duty equipment.
• Unmatched Surface Wear Life: The use of work-hardening manganese steel for jaw plates and liners means that as the surface is subjected to impact, it becomes progressively harder, extending component life far beyond ordinary alloys. Combined with a modular liner design, wear parts can be replaced quickly without disassembling the entire machine.
• Consistent Particle Size Output: Precision manufacturing of the eccentric shaft and jaw assembly ensures that the discharge gap remains stable over time, eliminating the frequent readjustments that plague inferior crushers. This stability translates into consistent product size, which is essential for downstream analytical procedures and inter-laboratory reproducibility.
• Customization to Your Unique Workflow: Beyond the standard five models, we offer modifications such as custom feed hoppers, automated discharge systems, and alternative jaw plate geometries for specific material behaviors. Our application engineers work with your lab to specify the exact configuration that maximizes efficiency and meets your throughput goals.
• Worldwide Service and Support: With service centers on five continents and a comprehensive inventory of spare parts, we provide rapid response to any issue. Our technical support team can guide your staff through installation, troubleshooting, and optimization, ensuring that your crushing system remains in peak operating condition.

When precision, durability, and sample integrity are non-negotiable, laboratory professionals turn to our horizontal jaw crushers. Contact our sales team today for a detailed consultation and a competitive quotation tailored to your specific needs.