Four-Point Eccentric Geared Straight Side Press
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DS4/DSL4 Stamping Presses

Four-Point Eccentric Geared Straight Side Press

Mechanical press for metal stamping, punching, bending, cutting and blanking
  • Capacity 630T to 1600T
  • Strokes per minute 8SPM to 18SPM
  • Stroke length 500mm to 800mm
  • Slide area 4000×2200mm to 5000×2600mm

The DS4/DSL4 four-point eccentric geared straight side press is designed for large-scale, high-precision metal stamping, punching, bending, cutting, and blanking. The entire press line can be configured in 4-press or 5-press layouts with dual moving bolsters. Production speeds reach 15–18 pieces per minute, supporting both intermittent and continuous operation modes to meet different production requirements. Full-line die change (ADC) time is controlled within 90 to 180 seconds, greatly improving efficiency. The first press is equipped with a pneumatic cushion, and the entire system is fully enclosed and automated, offering efficient, intelligent, and stable performance for complex manufacturing tasks.

With a capacity from 630T to 1,600T and stroke speeds between 8 and 18 SPM, the four-point eccentric geared straight side press is built to support demanding, large-scale production.

Applications
  • Automotive components
  • Other products: seat belt buckles, filter housings, surgical clamp joints
Key Features
  • Welded steel frame available in detachable or integral structure, with top beam, middle body, and base connected by four pre-tensioned reinforcement rods for high rigidity
  • Eccentric gear drive system for stable transmission and low noise
  • Long four-sided guideways for minimal side force and excellent accuracy
  • Programmable PLC control system for electronic cam start, brake angle monitoring, pressure and tonnage display, and multi-function control
Specifications
DS4
Model Unit DS4-630T DS4-800T DS4-1000T DS4-1250T DS4-1600T
Type S S S S S
Capacity T 630 800 1000 1250 1600
Rated tonnage point mm 13 13 13 13 13
Strokes per minute S.P.M 8-18 8-18 8-18 8-18 8-18
Stroke length mm 500 600 600 700 800
Max. shut height mm 1200 1300 1400 1400 1400
Die height adjustment mm 500 550 600 650 650
Slide area mm 4000×2200 4200×2200 4200×2400 4600×2500 5000×2600
Bolster area mm 4000×2200 4200×2200 4200×2400 4600×2500 5000×2600
Air pressure required kg/cm² 0.55 0.55 0.55 0.55 0.55
Main motor kW.p 90 110 132 200 250
Opening in side frames mm 2200 2200 2400 2500 2600
Slide adjustment mechanism Electric
Die cushion 1 pad, 2 cylinder
Die cushion capacity ton 100 150 150 200 250
Die cushion stroke length mm 200 200 200 250 250
Max. upper-die weight ton 15 18 20 22 25
DSL4
Model Unit DSL4-1000T DSL4-1250T DSL4-1400T DSL4-1600T DSL4-2000T
Type S S S S S
Capacity T 1000 1250 1400 1600 2000
Rated tonnage point mm 13 13 13 13 13
Strokes per minute S.P.M 8-18 8-18 8-18 8-18 8-18
Stroke length mm 800 1000 1100 1200 1400
Max. shut height mm 1200 1300 1300 1400 1500
Die height adjustment mm 550 600 600 600 700
Slide area mm 4200×2200 4500×2200 4500×2400 4500×2500 4600×2600
Bolster area mm 4200×2200 4500×2200 4500×2400 4500×2500 4600×2600
Air pressure required kg/cm² 0.55 0.55 0.55 0.55 0.55
Main motor kW.p 220 250 250 315 400
Opening in side frames mm 2200 2200 2400 2500 2600
Slide adjustment mechanism Electric
Die cushion 1 pad, 2 cylinder
Die cushion capacity ton 200 250 (with optional lock) 250 (with optional lock) 300 (with optional lock) 400 (with optional lock)
Die cushion stroke length mm 300 350 350 350 350
Max. upper-die weight ton 18 20 20 22 25
Standard Configurations
  • Variable speed drive
  • Hydraulic overload protector
  • Die area light
  • Electrical slide adjustment
  • Photoelectric safety device
  • Digital die height indicator
  • Slide and die counterbalance system
  • Electronic encoder
  • Misfeed detector
  • Power socket
  • Human-machine control system (Defu)
  • Overrun safety device
  • Air ejector
  • Maintenance tool box
  • Operating manual
Optional Configurations
  • Wet clutch
  • Pneumatic die cushion
  • Foot switch
  • Quick die change
  • Slide knockout
  • Automatic uncoiler
  • Intelligent manipulator
  • Moving bolster
  • Slug detector (Riken Optech Corporation)
  • Tonnage monitor
  • Front safety door
  • Back safety door
  • Safety die block with plug
  • Separate clutch and brake
  • Flywheel brake

Designs are subject to change without prior notice and can be customized according to your requirements.

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