PE series jaw crusher full parameter introduction

PE series jaw crusher full parameter introduction

PE series jaw crusher is the classic single-toggle primary coarse crushing equipment, widely adopted in quarries, mineral processing plants, construction waste recycling and highway aggregate production lines. It is designed for crushing hard & medium-hard materials with compressive strength ≤320MPa, such as granite, basalt, iron ore, limestone, river pebble and bluestone.

The model naming rule of PE series: PE – Primary Jaw Crusher; the two numbers behind represent the width × length of the feed opening (unit: mm). This article systematically explains model definition, core technical parameters, structural matching parameters, parameter application logic and complete full-size parameter table of mainstream PE models.

1. Explanation of Core Parameter Indicators

1.1 Feed Opening Size (Model Marking Standard)

Defined as width × length of the top feeding inlet, directly determines the maximum allowable lump size of raw ore. General rule: Max feeding lump size = 80% of feed opening width, to avoid material bridging and cavity blocking.

1.2 Max Feeding Size

The maximum single block dimension of raw stone that can stably enter the crushing cavity without jamming. Oversized ore must be pre-split before feeding.

1.3 Discharge Opening Adjustment Range (Closed Side Setting, CSS)

The minimum gap between fixed jaw and swing jaw bottom when the movable jaw fully closes. Adjust via rear shim plates to control finished aggregate maximum particle size; wider gap for coarse output, narrower gap for fine materials.

1.4 Hourly Processing Capacity (t/h)

Theoretical output under standard working conditions (medium-hard limestone, medium discharge gap). Actual capacity fluctuates with material hardness, feeding uniformity and discharge opening size.

1.5 Eccentric Shaft Rotation Speed (rpm)

Rotation cycles per minute of the eccentric shaft, decides swing jaw reciprocating frequency; higher speed improves throughput but accelerates wear of jaw plates and bearings.

1.6 Matched Motor Power (kW)

Three-phase asynchronous motor power, matched with peak crushing torque of hard ore, equipped with overload protection circuit.

1.7 Complete Machine Weight (t)

Total equipment weight excluding motor and supporting stand, used for foundation design, transportation loading calculation and installation layout.

1.8 Overall External Dimension (L×W×H, mm)

Machine outline size, critical parameter for workshop layout, container transportation and mobile station matching.

2. Structural Matching Auxiliary Parameter Introduction

  1. Eccentricity of eccentric shaft: Determines swing jaw horizontal stroke; larger eccentricity brings stronger single extrusion force and higher output.
  2. Crushing cavity nip angle: Fixed 22°–26° standard safe angle for PE series, ensures stones are firmly clamped without slipping upward during compression stroke.
  3. Adjustment mode of discharge opening: Traditional metal shim stacking adjustment as standard configuration for all PE models, stable positioning, low failure rate, suitable for long-term fixed production lines.
  4. Safety protection component: Cast iron toggle plate with prefabricated weak fracture groove, automatically breaks under overload to protect eccentric shaft and frame.
  5. Lubrication mode: Small & medium PE models adopt manual grease lubrication; large heavy-duty PE models support forced thin oil circulating lubrication to reduce bearing overheating risk.
  6. Transmission form: Multi-groove V-belt flexible transmission, dual symmetric flywheels for inertial energy storage and load stabilization.

3. Parameter Matching & Equipment Selection Logic

3.1 Feed opening matching principle

  1. Small mining laboratory / small mobile station: PE150×250, PE250×400, low power, small floor space, low investment.
  2. Small and medium fixed quarry aggregate line: PE400×600, PE500×750, stable output 10–100 t/h, mainstream civil engineering stone production.
  3. Medium-large open-pit mine primary crushing: PE600×900, PE750×1060, suitable for raw ore direct feeding from mine trucks, hourly output above 80 tons.
  4. Super-large mineral processing plant & large aggregate base: PE900×1200, PE1200×1500, heavy reinforced frame, ultra-large feeding capacity, matched with complete large-scale crushing production line.

3.2 Discharge opening & capacity parameter correlation

  • When the discharge opening is enlarged to maximum value, the hourly output reaches the upper limit of the parameter range, finished particles are coarse, mostly used for primary rough crushing before secondary cone/impact crusher.
  • When the discharge opening is narrowed to minimum value, output decreases, finished materials are fine, can be used as secondary medium crushing for small production lines without secondary crushers.

3.3 Material hardness influence on actual parameters

The table capacity data is tested with medium-hard limestone. When processing ultra-hard quartzite, iron ore, basalt:
  1. Actual hourly output reduces by 20%–40%;
  2. Jaw plate wear speed doubles;
  3. Need to appropriately reduce feeding lump size to avoid frequent toggle plate fracture.

4. Core Performance Advantages Determined by PE Series Parameter Design

  1. Wide feed opening parameter design, realize direct feeding of raw mine ore without pre-screening, simplify front-end process layout.
  2. Large adjustable range of discharge opening, one machine can produce multiple specifications of aggregate to meet diversified construction material demands.
  3. Reasonable matching of eccentric shaft speed and motor power, balance crushing efficiency and energy consumption, low unit power consumption per ton of stone.
  4. Gradated weight design from small to large models, small machines lightweight for flexible transfer, large machines heavy cast frame to bear ultra-large impact load of hard ore.
  5. Standardized unified spare part parameters (jaw plate, toggle plate, bearing bush), easy centralized procurement and quick on-site replacement, shorten equipment downtime.

5. Parameter Operation & Maintenance Precautions

  1. Do not feed ore lumps exceeding the max feeding size parameter for a long time, otherwise eccentric shaft bearing will bear overload alternating stress and easily ablate.
  2. The discharge opening must be adjusted under complete power-off state; after each shim adjustment, manually rotate flywheel to verify swing jaw flexible stroke.
  3. Regularly check the actual discharge gap parameter; jaw plate wear will continuously expand the bottom gap, leading to oversize finished stones, requiring timely readjustment.
  4. Match motor power strictly according to standard parameters; replacing with underpowered motor will cause frequent overload shutdown and insufficient crushing force.
  5. Large PE models with thin oil lubrication must control oil temperature within 45–70℃; excessive temperature indicates bearing clearance parameter out of tolerance, need to replace copper bush in time.