Jaw Crushers
Sealed Negative Suspension Jaw Crusher Heavy Duty Material Ore Primary Sample Preparation Crusher
Item Number: PP-JC07
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Product Overview
This high-performance crushing system is designed for medium-to-coarse size reduction of high-hardness ores, minerals, and bulk industrial materials. Operating on advanced negative-suspension kinematics, the unit efficiently processes tough raw feeds into uniform output profiles. It combines high reduction ratios with exceptional mechanical durability, providing a reliable primary comminution phase for research facilities, pilot plants, and production lines.
Built specifically to meet demanding material testing and processing environments, the equipment serves critical roles across mining, extractive metallurgy, construction aggregates, railway ballast testing, hydraulic engineering, and industrial chemical processing. Its integrated dust-containment envelope prevents environmental cross-contamination, ensuring compliance with strict occupational health and safety standards while protecting surrounding laboratory equipment.
Engineered to withstand rigorous operational cycles, this robust crusher handles materials with compressive strengths up to 24 kg/cm². The reinforced structural design incorporates heavy-section cast steel jaw components and high-rigidity frames, maintaining structural integrity and precise alignment under severe crushing reaction forces. This reliability makes the unit an indispensable tool for dependable continuous or batch sample preparation.
Key Features
- Negative-Suspension Kinematic Design: Optimized upper shaft suspension lowers the center of dynamic effort, maximizing jaw motion leverage during force delivery while minimizing structural vibration across the frame.
- Dust-Free Fully Sealed Housing: Enclosed outer housing completely isolates the crushing chamber, eliminating airborne fugitive dust escape to safeguard operator health and maintain cleanroom conditions.
- Heavy-Duty Cast Steel Jaw Beds: Fixed and moving jaw beds are manufactured from high-tensile cast steel and structural steel plate welds, built to endure extreme mechanical stresses without flexing or fatigue.
- Dual-Block Wedge Discharge Adjustment: Precision wedge adjustment system utilizes a threaded drive rod to shift internal blocks, enabling fast, tool-free setting of output discharge dimensions.
- Multi-Action Comminution Dynamics: Combined compressive, shearing, and grinding movements ensure uniform material reduction, preventing clogging and delivering highly consistent output particle sizes.
- Wear-Resistant Alloy Jaw Plates: Reversible fixed and moving jaw plates are securely anchored with wedge bolts and engineered from abrasion-resistant alloys for extended service life under harsh ore impact.
- High Crushing Ratio Capability: Generates large size-reduction ratios in a single pass, efficiently converting large bulk feed rocks down to fine aggregate dimensions.
- Low Maintenance Drive System: High-torque motor drives heavy-duty V-belts coupled to a balanced eccentric flywheel shaft, ensuring smooth energy transfer and minimal maintenance down-time.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Geological & Mining Sample Prep | Reduces raw drill core, rock specimens, and run-of-mine ore down to secondary mill feed sizes. | Prevents sample cross-contamination with a fully sealed chamber while handling extremely hard rock. |
| Extractive Metallurgy | Prepares slag, matte, sinter, and recycled metallic scrap for compositional analysis and smelting tests. | Delivers uniform output sizing to optimize downstream leaching and recovery testing kinetics. |
| Construction Aggregate Testing | Crushes ballast rock, gravel, concrete fragments, and quarry stones to evaluate physical compressive metrics. | Ensures high throughput and consistent feed distribution for physical ballast compliance verification. |
| Refractory & Ceramics Processing | Processes raw quartz, feldspar, grog, and industrial ceramics before fine planetary ball milling. | High-strength jaw beds process ultra-hard ceramic precursors without frame distortion or mechanical failure. |
| Chemical & Fertilizer Processing | Performs coarse-to-medium crushing of mineral salts, raw phosphate rock, and bulk chemical compounds. | Sealed enclosure prevents hazardous dust release into chemical lab atmospheres during batch reduction. |
| Environmental & Slag Recycling | Preps industrial waste, incineration ash, and structural slag for environmental toxicity leaching procedures. | Precise wedge adjustment allows quick adaptation between varying material hardnesses and output specs. |
Technical Specifications
| Parameter | PP-JC07-150x250 | PP-JC07-250x400 | PP-JC07-400x600 |
|---|---|---|---|
| Feed Inlet Size (mm) | 150 × 250 | 250 × 400 | 400 × 600 |
| Maximum Feed Size (mm) | 125 | 200 | 350 |
| Discharge Size Range (mm) | 10 – 40 | 20 – 80 | 40 – 90 |
| Production Capacity (t/h) | 1 – 3 | 5 – 20 | 15 – 50 |
| Motor Power (kW) | 5.5 | 15 | 30 |
| External Dimensions (mm) | 896 × 745 × 935 | 1430 × 1310 × 1340 | 1700 × 1732 × 1653 |
| Equipment Weight (t) | 1.0 | 3.0 | 7.0 |
| Material Hardness Limit | Compressive strength $\le 24\text{ kg/cm}^2$ | Compressive strength $\le 24\text{ kg/cm}^2$ | Compressive strength $\le 24\text{ kg/cm}^2$ |
| Crushing Chamber Type | Negative-Suspension Sealed | Negative-Suspension Sealed | Negative-Suspension Sealed |
| Adjustment System | Block / Wedge Adjustment | Block / Wedge Adjustment | Block / Wedge Adjustment |
| Frame Structure | Heavy Welded Steel Plate | Heavy Welded Steel Plate | Heavy Welded Steel Plate |
| Jaw Bed Material | High-Tensile Cast Steel | High-Tensile Cast Steel | High-Tensile Cast Steel |
Why Choose This Product
- Superior Engineering Integrity: Heavy-duty structural welding combined with precision-cast iron and steel components guarantees zero frame deformation under severe crushing stress.
- Operator Health & Safety Protection: The fully sealed housing eliminates fugitive dust emissions at the source, creating a safe, compliant environment in research and industrial facilities.
- Extended Operational Lifespan: High-grade wear-resistant alloy liners and low-friction bearings reduce component wear rates and minimize total cost of ownership.
- Flexible Application Adaptability: Simple manual or hydraulic-assisted wedge adjustments permit fast discharge particle sizing across diverse material specs.
- Comprehensive Material Prep Integration: Designed to integrate seamlessly with downstream secondary pulverizers, disc mills, and vibratory sieves in our sample preparation ecosystem.
Contact our technical engineering team today for a tailored quote or custom sample preparation solution.
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