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JS31 Straight Side Single Point Gear Press

Single point h frame eccentric gear press is suitable for metal parts cutting, punching, drawing and blanking. The gear press has long stroke length with high energy. It is widely used for car rim, pressure cooker and steel bottle production. This eccentric gear single point press has capacity range from 125ton to 2000ton. Big press structure is tie rod type, while small size press can be mono block type.

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  • JS31
  • WORLD
JS31 eccentric gear press structure

Strong H frame structure of single point eccentic gear press

Smaller presses such as 160ton, 250ton, 315ton and 400ton presses bodies are mono block type casting irons. Bigger presses bodies are tie rod type steel welded type. Dry type clutch is on the top and slide moves along the 8 faces guides in the middle of the frame.

eccentric press application for rims

Metal forming applications of eccentric gear drive press

.metal forming of pots

.metal forming of car rims

.hot forging of bearing rings

.hot forging of valves

.metal forming and drawing of cups

single point eccentric gear transmission

Single point eccetric gear transmission

eccentric gear transmission can provide longer stroke length than crank press. The JS eccetric gear press has more powerful engergy than conventional crank press, which is more suitable for metal sheet drawing process.

Separate type dry clutch and brake. Clutch block is changable for future maintenance. Clutch block clearance could be adjustable to ensure the service life more than 5 years.

High strength alloy steel welded type gears. Geat teeth are grinded for lower noise. High speed gears are herringbone type.


Gear drive press technical parameters

Parameter Unit JS31-125 JS31-160 JS31-200 JS31-250 JS31-315 JS31-400A JS31-400B JS31-400C
Nominal Capacity KN 1250 1600 2000 250 3150 4000 4000 4000
Nominal pressure stroke mm 7 8 10 10 12 13 13 13
Slide Stroke mm 130 160 200 200 220 250 250 400
Strokes Per Minute mm 35 32 32 28 28 25 20 20
Max Die Set Height
350 385 500 460 520 530 565 550
Die Height Adjustment mm 100 140 120 160 160 160 160 250
Slide Bottom Size L×R mm 550 510 700 700 700 810 1230 1230
F×B mm 550 560 700 670 670 810 1000 1000
Bolster Size L×R mm 700 710 800 850 850 990 1240 1240
F×B mm 750 790 850 900 900 1060 1200 1200
Parameter Unit JS31-500 JS31-500A JS31-630 JS31-630A JS31-800 JS31-1000 JS31-1250 JS31-1600
Nominal Capacity KN 5000 5000 6300 6300 8000 1000 12500 16000
Nominal pressure stroke mm 13 13 13 13 13 13 13 13
Slide Stroke mm 250 400 400 400 500 500 500 500
Strokes Per Minute mm 250 20 16 18 10 10 10 10
Max Die Set Height
530 580 830 690 750 800 800 950
Die Height Adjustment mm 160 200 300 200 300 300 300 300
Slide Bottom Size L×R mm 810 1500 1600 1450 1500 1600 1800 1700
F×B mm 810 1100 1450 1100 1600 1500 1600 1850
Bolster Size L×R mm 990 1500 1600 1450 1600 1600 1800 1900
F×B mm 1060 1100 1450 1100 1600 1600 1600 1750


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