Jh21series Open Back Automatic Punch/Punching Press Machine with Dry Clutch

JH21series 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.
JH21-45 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.
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 (FBxLR)
mm
300x680
400x700
440x810
580x900
580x1000
680x1150
680x1150
Bolster Opening (Up Hole Dia.xDpthxLow Hole Dia.)
mm
130x260
φ170x20xφ150
φ180x30xφ160
φ200x40xφ180
φ200x40xφ180
φ260x50xφ220
φ260x50xφ220
Bolster Thickness
mm
70
80
110
110
120
140
140
Bolster Opening (Dia./FBxLR)
mm
200x270
260x250
300x300
390x460
390x520
420x540
420x540
Slide Area (FBxLR)
mm
270x330
300x360
340x410
400x480
420x560
500x650
540x680
Shank Hole (Dia.xDpth)
mm
φ40x60
φ40x60
φ40x60
φ50x80
φ50x80
φ60x80
φ60x80
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 (FBxLRxH)
mm
1150x1050x2050
1300x1050x2050
1390x1200x2400
1580x1210x2520
1640x1280x2700
1850x1450x3060
1850x1490x3060
Net Weight
kg
2200
2600
3450
5400
7000
9340
9900
JH21-160B
JH21-200
JH21-200B
JH21-250
JH21-250B
JH21-315
JH21-315B
Capacity
kN
1600
2000
2000
2500
2500
3150
3150
Nominal Stroke
mm
6
6
6
8
8
8
8
Slide Stroke
mm
160
180
200
200
250
200
250
SPM
Fixed
min -1
40
35
35
30
30
30
30
Variable
35-50
30-40
30-40
25-35
25-35
25-35
25-35
Max. Die Height
mm
350
390
450
430
500
430
550
Die Height Adjustment
mm
110
110
110
120
120
120
120
Between Slide Center & frame
mm
380
390
390
420
420
420
460
Bolster (FBxLR)
mm
740x1300
760x1400
760x1400
800x1400
800x1400
800x1400
880x1600
Bolster Opening (Up Hole Dia.xDpthxLow Hole Dia.)
mm
φ300x50xφ260
φ300x50xφ260
φ300x50xφ260
φ320x50xφ280
φ320x50xφ280
φ320x50xφ280
φ320x50xφ280
Bolster Thickness
mm
150
160
160
170
170
170
200
Bolster Opening (Dia./FBxLR)
mm
φ470
φ470
φ470
370x570
370x570
440x580
440x580
Slide Area (FBxLR)
mm
580x770
600x800
600x800
650x850
650x850
650x850
700x950
Shank Hole (Dia.xDpth)
mm
φ65x85
φ65x90
φ65x90
φ70x90
φ70x90
φ70x90
φ70x90
Between Columns
mm
850
870
870
960
960
920
920
Main Motor Power
kW
15
18.5
18.5
22
22
30
30
Outline Size (FBxLRxH)
mm
2280x1550x3240
2500x1580x3320
2500x1580x3420
2730x1640x3550
2770x1700x4060
2770x1650x3550
2850x1700x4450
Net Weight
kg
14500
17000
17350
23500
24500
25000
28000
JH21-400
JH21-400B
Capacity
kN
4000
4000
Nominal Stroke
mm
10
10
Slide Stroke
mm
200
250
SPM
Fixed
min -1
25
25
Variable
20-30
20-30
Max. Die Height
mm
430
550
Die Height Adjustment
mm
120
120
Between Slide Center & frame
mm
420
490
Bolster (FBxLR)
mm
760x1400
940x1800
Bolster Opening (Up Hole Dia.xDpthxLow Hole Dia.)
mm
φ320x50xφ280
φ320x50xφ280
Bolster Thickness
mm
180
200
Bolster Opening (Dia./FBxLR)
mm
440x580
440x580
Slide Area (FBxLR)
mm
690x900
720x1000
Shank Hole (Dia.xDpth)
mm
φ70x90
φ70x90
Between Columns
mm
960
960
Main Motor Power
kW
37
37
Outline Size (FBxLRxH)
mm
2830x1680x3890
3100x1900x4600
Net Weight
kg
29500
34000