To have the Corporate details of us please visit www.gmtengineers.com, for product wise informations please visit www.gmtpowerpress.com for the details about Mechanical Power Presses, for informations on Hydraulic Press Brakes please visit www.gmtpressbrake.com and for the details about Hydraulic Shearing Machines please visit www.gmtshears.com.
 	JF21 SERIES
   

CROSS SHAFT DRY PNEUMATIC CLUTCH SHEAR BLOCK SAFETY PRESS JF21

  JF21 series open back press with dry clutch and shearing block protector
 
The body of JF21 series press is welded with steel plate, so it is with good rigidity and stable precision. The crankshaft is placed vertically, so the structure is compact and the contour is beautiful. Using the combined pneumatic friction clutch and brake, the engagement is smooth, the action is agile and the noise is low. The gear pair adopts the flooding system lubrication. The slide block is six-face rectangle with longer guide track whose face is copper panel, so the guide precision is good. The press-down protection device is adopted to ensure safety and reliability in operation. For model JF21-25/25B/45, manual die set adjustment is adopted. For JF21-25/45, there is scale display to show the die setting height. For JF21-25B, there is digital display of the die setting height (with the precision up to 0.1mm). For models above JF21-63, motor is adopted for the adjustment of the die setting height. For models above JF21-45, the slid blocks are fitted with lifting balance cylinders (with imported sealing rings) and imported PLC is adopted for centralized control. The air pipeline is controlled by safety duplex valve. The press can be equipped with air cushion, automatic feed shaft and photoelectric protector, and can also be equipped with various automatic equipments, which conform to the safety standard of press.
 
 
 
Specifications Type
Description

JF21-25B

JF21-25

JF21-45

JF21-63

JF21-80

JF21-110

JF21-125

JF21-160B

JF21-200

JF21-200B

Nominal force

ken

250

250

450

630

800

1100

1250

1600

2000

2000

Stroke under nominal force

mm

3

3

4

4

5

6

6

6

6

6

Slide block stroke

mm

60

80

100

120

140

160

160

160

180

200

Number of stroke

Fixed  
100
100
80
70
60
50
50
40
35
35

Variable (Optional)

min-1

80-120

80-120

70-90

60-80

50-70

40-60

40-60

35-50

30-40

30-40

Max die set height

mm

200

250

270

300

320

350

350

350

390

450

Die set height adjustment

mm

50

50

60

80

80

80

80

110

110

110

Distance from slide block Centrex to the frame

mm

160

210

230

300

300

350

350

380

390

390

Worktable dimensions(F • B x L • R)

mm

300x 680

400 x 700

440x 810

580x 900

580x 1000

680x 1150

680x 1150

740x 1300

760x 1400

760x 1400

Dimensions of worktable hole

mm

130x 260

Φ 170 x 20 x Φ 150

Φ 180x30 x Φ 160

Φ200 x 40 xΦ180

Φ200 x 40 xΦ180

Φ260 x 50 x Φ220

Φ260 x 50 x Φ220

Φ300 x 50 x Φ260

Φ300 x 50 x Φ260

Φ300 x 50 x Φ260

Thickness of bolster

mm

70

80

110

110

120

140

140

150

160

160

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

mm

200 x 270

260 x 250

300 x 300

Φ 365

Φ 365

Φ 400

Φ 400

Φ 470

Φ 470

Φ 470

Dimensions of side block bottom surface (F•BXL •R)

mm

270 x 330

250 x 360

340x410

400 x 480

420 x 560

500 x 650

540 x 680

580 x 770

600 x 800

600 x 800

Size of the handle hole (Diameter)

mm

Φ 40 x 60

Φ 40 x 60

Φ 40 x 60

d) 50 x 80

(b 50 x 80

cb 60 x 80

4> 60 x 80

4> 65 x 90

4> 65 x 90

4> 65 x 90

Distance between columns of body

mm

448

450

550

620

680

760

760

850

870

870

Main motor capacity

kW

3

3

5.5

5.5

7.5

11

11

15

18.5

18.5

Outline dimension(F • B x L • R x H)

mm

1150 x 1050 X 2050

1280 X 1050 X 2050

1500 x 1125 X 2315

1800 X 1210 X 2520

1760 X 1280 X 27B0

2010x 1400 X 3040

2010X 1440 X 3050

2280 X 1550 X 3240

2500 X 1580 X 3320

2500 X 1580 X 3420

Net/Gross weight

kg

2200/ 2500

2800/ 3250

4000/ 4500

6100/ 7000

8000/ 9200

11000/ 12200

11800/ 13000

15500/ 17000

16500/ 18000

16700/ 18200

 
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www.gmtpowerpress.com
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www.gmtpressbrake.com
For Shearing Machine please visit :
www.gmtshears.com