Sample Preparation Systems

Lab Jaw Crusher

Compressive Primary Crushing for Hard & Coarse Laboratory Samples

Product Photo

Zone 7 · Laboratory

Overview

The Oswal Lab Jaw Crusher delivers controlled compressive size reduction for hard, coarse, and abrasive materials. A fixed jaw and a moving jaw driven by an eccentric shaft apply high crushing force, producing uniform output particles. The discharge gap is fully adjustable to set the required product size ahead of splitting and fine grinding.

Process Role

In a cement laboratory, representative samples collected from belts, silos, and kilns arrive as lumps or coarse fractions. The jaw crusher delivers the first reduction stage, converting raw material, limestone, clinker, or additive lumps into crushed fractions suitable for further division and XRF preparation without introducing analytical bias.

Engineering Principle

Compressive force applied between a fixed and an oscillating jaw fractures hard material through its natural cleavage planes. The adjustable discharge gap and toggle plate mechanism ensure consistent output size and protect the crusher from uncrushable objects.

Core Engineering Features

Fixed & Moving Jaw Mechanism

Eccentric-driven moving jaw delivers high compressive force for hard limestone, raw materials, and clinker.

Adjustable Discharge Gap

Precise output particle size is set by a simple gap adjustment, eliminating over- or under-crushing.

Abrasion-Resistant Jaw Plates

Manganese steel jaw plates withstand abrasive cement process materials with extended plate life.

Overload Protection

Toggle plate mechanism protects the crusher and drive from damage if uncrushable objects enter the feed.

Application Areas

Primary reduction of limestone and raw materials

Clinker and additive crushing for XRF preparation

Before sample splitters and dividers

Cement process laboratory lines

Materials Handled

LimestoneClinkerCement raw materialsGypsumCoalSlag

Process Impact

Consistent feed size for downstream splitting and pulverization

Reduced analytical bias from uncontrolled particle size variation

Faster laboratory throughput with high crushing efficiency

Engineering Outcome

Controlled first-stage reduction. Consistent feed for splitters and pulverizers. Maintained sample representativeness through size reduction.

Operational Benefits

Predictable and repeatable output granulometry
High durability under abrasive process materials
Tool-free jaw plate replacement for minimal downtime
Compact footprint for laboratory benchtop installation

Downloads

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Lab Jaw Crusher - Product Datasheet

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PDF

Lab Jaw Crusher - Technical Specification