What it is
A jaw crusher uses a fixed jaw and a moving jaw to reduce large feed by compression. It is normally selected for primary crushing duty.
Primary Crushing Equipment
Jaw Crusher for Primary Crushing in Quarry and Mining Projects
A jaw crusher is commonly used as the first crushing stage for quarry stone, hard rock and many ore materials. The correct model depends on the real feed size, material condition, required capacity and output size.
Where it is used
It is commonly installed after controlled feeding and before secondary crushing, screening or grinding equipment.
Practical advantages
The operating principle is direct, the crushing chamber is accessible for inspection, and the machine can be integrated with common feeding and conveying equipment.
Working Principle
How a jaw crusher reduces large feed material.
A motor drives the eccentric shaft so the movable jaw approaches and moves away from the fixed jaw. Material is compressed in the chamber and leaves through the lower opening after it becomes small enough.
Process stepWhat happens inside the machineWhat the buyer should check
FeedingMaterial enters the chamber between the fixed jaw and movable jaw.Maximum feed size and whether a feeder controls the material.
CrushingThe movable jaw repeatedly compresses material against the fixed jaw.Material hardness, abrasiveness, moisture and unwanted metal.
DischargingCrushed material leaves through the opening at the bottom of the chamber.Required output size and whether secondary crushing or screening is needed.
Technical Specifications
Selected model references from our existing technical sheet.
Capacity figures are reference ranges, not a guaranteed result for every material. Actual output depends on material, feed grading, discharge setting, feeding continuity and operation.
ModelFeed and discharge referenceCapacity and motor reference
PEF250 x 400Maximum feed: 210 mm
Discharge range: 20-80 mmCapacity: 4-14 t/h
Motor power: 15 kW
Discharge range: 20-80 mmCapacity: 4-14 t/h
Motor power: 15 kW
PEF400 x 600Maximum feed: 350 mm
Discharge range: 40-110 mmCapacity: 10-40 t/h
Motor power: 30 kW
Discharge range: 40-110 mmCapacity: 10-40 t/h
Motor power: 30 kW
PEF500 x 750Maximum feed: 425 mm
Discharge range: 50-120 mmCapacity: 30-90 t/h
Motor power: 55 kW
Discharge range: 50-120 mmCapacity: 30-90 t/h
Motor power: 55 kW
PEF600 x 900Maximum feed: 480 mm
Discharge range: 75-200 mmCapacity: 56-192 t/h
Motor power: 75 kW
Discharge range: 75-200 mmCapacity: 56-192 t/h
Motor power: 75 kW
PEF750 x 1060Maximum feed: 630 mm
Discharge range: 80-210 mmCapacity: 72-300 t/h
Motor power: 110 kW
Discharge range: 80-210 mmCapacity: 72-300 t/h
Motor power: 110 kW
Model Selection
Choose the crusher from the working condition, not only the model name.
The same material can require a different crusher when feed size, hourly capacity, final size or site conditions change. These inputs must be confirmed before a model is recommended.
Information neededWhy it mattersUseful format
MaterialHardness and abrasiveness affect machine selection and wear parts.Material name, photo or available test information
Maximum feed sizeThe feed must match the crusher opening and feeding arrangement.Maximum size in millimetres
Required output sizeThe target size helps determine the discharge range and whether another crushing stage is needed.One size or several graded sizes
Required capacityThroughput affects crusher size and surrounding feeding and conveying equipment.Tonnes per hour or tonnes per day
Site and installationPower, space and fixed or mobile use affect the final arrangement.Country, voltage, frequency and site photo
Quarry primary crushing
Large quarry feed can be reduced before secondary crushing and final screening. Feed size, rock condition and required aggregate sizes should be checked together.
Ore preparation
Ore can be crushed before grinding or beneficiation. The downstream grinding feed requirement helps determine the necessary crushing stages.
Aggregate production
A jaw crusher can serve as the first stage in a fixed or mobile aggregate line, followed by suitable secondary crushing, screening and conveying equipment.
Real Manufacturing Evidence
Review the real workshop before model discussion.
This is a real jaw crusher frame inside the workshop. Buyers can review manufacturing photos and factory videos before continuing with technical selection.
Real Video Evidence
Factory and equipment footage for buyer verification.
These are real Zhongji workshop and site videos. They support supplier verification; exact equipment scope should still be confirmed for each project.
Factory Equipment Workshop
Real workshop footage for buyers checking manufacturing activity and equipment handling.
Real Equipment Site
Published site footage for buyers reviewing equipment application evidence.
Technical Downloads
Official jaw crusher model reference.
Only the existing Zhongji technical sheet is offered here. Final model selection still requires the actual material, feed size, output size, capacity and site conditions.
Jaw Crusher Technical Sheet
Product description and model parameters from the existing company documentation.
Download Technical Sheet
Maintenance and Installation
Use an inspection plan based on operating hours and real wear.
The checklist below is a planning framework. Exact intervals and procedures must follow the supplied manual, site safety rules, material abrasiveness and inspection findings.
Daily / Each Shift
- Check guards, fasteners and visible damage.
- Listen for abnormal noise or vibration.
- Observe feed stability and discharge clearance.
- Check lubrication condition as instructed.
Weekly
- Inspect belts, drive parts and accessible bolts.
- Check jaw-plate wear and chamber condition.
- Review blockage or overload records.
- Clean accumulated material safely.
Monthly
- Record wear measurements and compare trends.
- Inspect support, alignment and safety devices.
- Review lubrication records and leakage.
- Plan required wear-part replacement.
Annual / Major Shutdown
- Complete a qualified inspection of major components.
- Check bearings, drive, support and chamber parts.
- Replace confirmed worn components.
- Review spare-parts stock and maintenance records.
Safety: Stop and isolate the power before clearing blockage, adjusting or replacing parts. Installation, lifting and electrical work require qualified personnel and the confirmed machine drawing.
Installation preparation
Confirm foundation or support dimensions, anchor positions, maintenance clearance, feed arrangement and discharge connection before the machine arrives.
Wear parts
Confirm the actual machine model, jaw-plate profile, part markings, photos and dimensions before ordering jaw plates, toggle parts, belts or related components.
Commissioning
Check alignment, fasteners, guards and rotation direction, then complete the no-load and controlled-load checks required by the supplied instructions.
Common Operating Problems
Start troubleshooting from the operating condition.
These are general checking directions. Stop safely and contact qualified technical personnel when the cause is uncertain.
Observed problemPossible checking directionPractical response
Unstable outputUneven feed, changing feed size, discharge restriction or worn jaw plates.Stabilize feeding and inspect the chamber, setting and wear condition.
Frequent blockageOversized feed, sticky material, uncontrolled feeding or insufficient discharge clearance.Stop safely, clear the chamber and correct the feed or discharge condition.
Abnormal vibration or noiseLoose fasteners, drive alignment, worn parts or foundation condition.Stop for inspection instead of continuing under abnormal operation.
Fast wearAbrasive material, uneven feeding, unsuitable operation or delayed replacement.Review material, feeding practice and wear-part inspection records.
Buyer FAQ
Questions to resolve before selecting a jaw crusher.
What materials are suitable for a jaw crusher?
Jaw crushers are commonly used for quarry stone, granite, basalt, limestone, river stone, gold ore, copper ore and other hard or medium-hard materials. Final suitability should be checked by real material condition.
Who commonly uses a jaw crusher?
Common users include quarry operators, mining users, aggregate plants, contractors, EPC companies and local equipment dealers.
Where is a jaw crusher used in a production line?
A jaw crusher is typically placed after a feeder and before a vibrating screen, secondary crusher or grinding equipment.
Factory Support Path
What happens after the model direction is confirmed.
These steps are discussed according to the confirmed machine and order scope. Availability of documents, packing and installation support is confirmed before contract.
Manufacturing
Real workshop photos and videos show fabrication and assembly activity for buyer verification.
Quality Inspection
Machine condition and supplied scope are checked against the confirmed drawing and order requirements.
Shipment Preparation
Packing, lifting and transport arrangements are discussed according to machine size and destination.
Installation Support
Foundation conditions, installation information and commissioning checks are confirmed for the order scope.
Equipment Recommendation Request
Send five working conditions for a practical jaw crusher direction.
The form creates a structured WhatsApp inquiry so the factory can review the crushing duty before discussing price.