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 	JH21 SERIES
   

CROSS SHAFT DRY PNEUMATIC CLUTCH HYDRAULIC OVER LOAD SAFETY PRESS JH21

 
JH21 series open back press with dry clutch and Hydraulic overload protector
 
The body of JH21 series press is welded with steel plate, so it is with good rigidity and stable precision. The crankshaft is placed lengthways, so the structure is compact and the contour beautiful. Using the combined pneumatic friction clutch and brake, the engagement is smooth, the action agile, and the noise low. Gear pair adopts the flooding system lubrication. The slide block is six-face rectangle with longer guide track whose face is copper panel. Meanwhile an imported hydraulic overload protector is installed in the slide block whose air pump and high-pressure ring seal are imported. In case of overload, it will restore to its original position. It is marked with high sensitivity and reliability. For JH21-25/25B/45, the die set is adjusted manually. For JH21 -25/45, there is scale display to show the die set height. For JH21-25B, digital display is adopted to show the die set height (with precision reaching 0.1mm). For models above JH21-63, the die set is adjusted by means of motor.
 
For models above JH21-45, the slide block is fitted with lifting balance cylinder, of which the sealing ring is imported. And, the electrical thick oil forced lubrication is adopted; for the air passage is adopted the duplex safety valve; and the imported PLC is adopted for the electrical control. Thus the machine is marked with high level of safety performance. The press can be equipped with air cushion, automatic feed shaft and photoelectric trice protector, and can be equipped with various automatic equipment, which conform to the safety standard of press
 
 
 
Specifications
Type
Description

JH21-25B

JH21-25

JH21-45

JH21-63

JH21-80

JH21-110

JH21-125

Nominal force

ken

250

250

450

630

800

1100

1250

Stroke under nominal force

mm

3

3

4

4

5

6

6

Slide block stroke

mm

60

80

100

120

140

160

160

Number of stroke Fixed

min-1

100

100

80

70

60

50

50

Variable
Optional

80-120

80-120

70-90

60-80

50-70

40-60

40-60

Max die set height

mm

200

250

270

300

320

350

350

Die set height adjustment

mm

50

50

60

80

80

80

80

Distance from slide block Centrex to the frame

mm

160

210

230

300

300

350

350

Worktable dimensions( F • B x L • R)

mm

300 x 680

400 x 700

440x810

580 x 900

580x1000

680x1150

680x1150

Dimensions of worktable hole

mm

130x 260

Φ170x20
xΦ150

Φ180x30
xΦ160

Φ200x40
xΦ180

Φ200x40
xΦ180

Φ260x50
xΦ220

Φ260x50
xΦ220

Thickness of bolster

mm

70

80

110

110

120

140

140

Hole dimensions in bed (Diameter x F • B x L • R)

mm

200 x 270

260 x 250

300 x 300

Φ 365

Φ 365

Φ 400

Φ 400

Dimensions of slide block bottom surface F • B x L • R)

mm

270 x 330

300 x 360

340 x 410

400 x 480

420 x 560

500 x 650

540 x 680

Size of the handle hole (Diameter x Depth)

mm

Φ 40 x 60

Φ 40 x 60

Φ 40 x 60

Φ 50 x 80

Φ 50 x 80

Φ 60 x 80

Φ 60 x 80

Distance between columns of body

mm

448

450

550

620

680

760

760

Main motor capacity

kW

3

3

5.5

5.5

7.5

11

11

Outline dimension
(F • B x L • R x H)

mm

1150x1050
x2050

1280x1050
x2050

1600x1200
x2400

1800x1210
x2520

1760X1280
x2700

2010x1400
x3040

2010x1440
x3050

Net/Gross weight

kg

2200/2500

2800/3250

4000/4500

6100/7000

8000/9200

11000/12200

11800/13000

 
             Specifications
Type
Description

JH21-160B

JH21-200

JH21-200B

JH21-250

JH21-250B

JH21-315

JH21-400

Nominal force

ken

1600

2000

2000

2500

2500

3150

4000

Stroke under nominal force

mm

6

6

6

8

8

8

10

Slide block stroke

mm

160

180

200

200

250

200

200

Number of stroke Fixed

min-1

40 35-50

35 30-40

35 30-40

30 25-35

30 25-35

30 25-35

25 20-30

Variable
Optional
Max die set height

mm

350

390

450

430

500

430

430

Die set height adjustment

mm

110

110

110

120

120

120

120

Distance from slide block Centrex to the frame

mm

380

390

390

420

420

420

420

Worktable dimensions
( F • B x L • R)

mm

740x1300

760x1400

760x1400

800x1400

800x1400

800x1400

800x1400

Dimensions of worktable hole

mm

Φ300x50
xΦ260

Φ300x50
xΦ260

Φ300x50
xΦ260

Φ320x50
xΦ280

Φ320x50
xΦ280

Φ320x50
xΦ280

Φ320x50
XI 280

Thickness of bolster

mm

150

160

160

170

170

170

180

Hole dimensions in bed (Diameter x F • B x L • R)

mm

Φ470

Φ 470

Φ 470

370 x 570

370 x 570

440 x 580

440 x 580

Dimensions of slide block bottom surface F • B x L • R)

mm

580 x 770

600 x 800

600 x 800

650 x 850

650 x 850

650 x 850

690 x 900

Size of the handle hole (Diameter x Depth)

mm

Φ 65 x 90

Φ 65 x 90

Φ 65 x 90

Φ70 x 90

Φ70 x 90

Φ 70 x 90

Φ 70 x 90

Distance between columns of body

mm

850

870

870

960

960

920

960

Main motor capacity

kW

15

18.5

18.5

22

22

30

37

Outline dimension
(F • B x L • R x H)
mm
2280x1550
x3240
2500x1580
x3320
2500x1580 x3420
2730x1640 x3550
2770x1700 x4060
2770x1650 x3550
2830x1680 x3890
Net/Gross weight


kg

15500/ 17000

16500/ 18000

16500/ 18000

24500/ 26500

25300/ 27300

25500/ 28000

28500/
31500

 
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