Punch Press JH21 SERIES

JH21 SERIES OPEN BACK PRESS FEATURES:

JH21 series open back press with dry clutch and hydraulic overload protector

Welded body with steel plate and high intensity.

Main motor is made by Siemens.

Adopts combined pneumatic friction clutch and brake.

Cluster gear adopts the flooding oil lubrication.

Six-face rectangle lengthen guide; JH21-315B/400B adopts eight-face lengthen guideway.

Equipped with hydraulic overload protecting device.

JH21-25/25B/45 adopts manual shut height adjustment,among these types JH21-25/45 adopts scale display and JH21-25B with digital display.JH21-63 and above type adopts electric shut height adjustment with digital display.

H21-45 can equip with die set height adjustment motor, the value will be displayed by digital.

JH21-25B, JH21-45 and above type equipped with balance cylinder.

Duplex valves imported.

Electric compelling grease lubrication system.

Balancing cylinder adopts manual lubrication system.

One set of blowing device.

Controlled by PLC with international brand.

Buttons, indicators, AC contactors, air circuit breakers and other controlling devices are imported from international brand.

Equipped with optional air cushion device, automatic feed shaft and photoelectric protector,which can used to work with various automatic equipments.

SPECIFICATIONS:

MODEL

JH21-25B

JH21-25

JH21--45

JH21-63

JH21-80

JH21-110

JH21-125

Capacity

kN

250

250

450

630

800

1100

1250

Nominal Stroke

mm

3

3

4

4

5

6

6

Slide Stroke

mm

60

80

100

120

140

160

160

SPM

Fixed

min-1

100

100

80

70

60

50

50

Variable

80-120

80-120

70-90

60-80

50-70

40-60

40-60

Max. Die Height

mm

200

250

270

300

320

350

350

Die Height Adjustment

mm

50

50

60

80

80

80

80

Between Slide Center & Frame

mm

160

210

230

300

300

350

350

Bolster (FB×LR)

mm

300×680

400×700

440×810

580×900

580×1000

680×1150

680×1150

Bolster Opening (Up Hole Dia.×Dpth×Low Hole Dia.)

mm

130×260

φ170×20×φ150

φ180×30×φ160

φ200×40×φ180

φ200×40×φ180

φ260×50×φ220

φ260×50×φ220

Bolster Thickness

mm

70

80

110

110

120

140

140

Bolster Opening (Dia./FB×LR)

mm

200×270

260×250

300×300

390×460

390×520

420×540

420×540

Slide Area (FB×LR)

mm

270×330

300×360

340×410

400×480

420×560

500×650

540×680

Shank Hole (Dia.×Dpth)

mm

φ40×60

φ40×60

φ40×60

φ50×80

φ50×80

φ60×80

φ60×80

Between Columns

mm

448

450

550

560

640

760

760

Main Motor Power

kW

3

3

5.5

5.5

7.5

11

11

Outline Size (FB×LR×H)

mm

1150×1050×2050

1300×1050×2050

1390×1200×2400

1580×1210×2520

1640×1280×2700

1850×1450×3060

1850×1490×3060

Net Weight

kg

2200

2600

3450

5400

7000

9340

9900

 

 

 

 

 

 

 

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