Gold Member Since 2009
Audited Supplier
Anhui Chizhou Household Machine Tool Co., Ltd.

Open Back Press manufacturer / supplier in China, offering Open Back Press with Dry Clutch and Hydraulic Overload Protector (JH21 Series), Drilling and Milling Machine (ZAY7032G ZAY7040G ZAY7045G), Simple Surface Grinder (MJ7115) and so on.

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Supplier Homepage Product PRESS MACHINE AND SHEAR MACHINE Open Back Press with Dry Clutch and Hydraulic Overload Protector (JH21 Series)

Open Back Press with Dry Clutch and Hydraulic Overload Protector (JH21 Series)

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Basic Info
  • Model NO.: JH21 Series
Product Description
Main Features:
JH21 series open back press with dry clutch and hydraulic overload protector
Welded body with steel plate and high intensity;
Adopts combined pneumatic friction clutch and brake;
Cluster gear adopts the flooding oil lubrication;
Six-face rectangle lengthen guide;
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;
JH21-25B, JF21-45 and above type equipped with lifting balance cylinder;
Duplex valves imported from Japan.
Electric compelling grease lubrication system.
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
Nominal force kN 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 centre to the frame mm 160 210 230 300 300 350 350
Worktable dimensions(F.B×L.R) mm 300
680
400
700
440
810
580
900
580
1000
680
1150
680
1150
Dimensions of worktable hole mm 130
260
φ170
20
φ150
φ180
30
φ160
φ200
40
φ180
φ200
40
φ180
φ260
50
φ220
φ260
50
φ220
Thickness of bolster mm 70 80 110 110 120 140 140
Hloe dimensions in bed (Diameter/ F.B×L.R) mm 200
270
260
250
300
300
φ365 φ365 φ400 φ400
Dimensions of sideblock botton surface(F.B×L.R) mm 270
330
250
360
340
410
400
480
420
560
500
600
540
680
Size of the handle hole(Diameter×Depth) mm φ40
60
φ40
60
φ40
60
φ50
80
φ50
80
φ60
80
φ60
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×L.R×H) mm 1150
1050
2050
1280
1050
2050
1600
1200
2400
1800
1210
2520
1760
1280
2700
2010
1400
3040
2010
1440
3050
Net/Gross weight Kg 2200
2500
2800
3250
4000
4500
6100
700
8000
9200
11000
12200
11800
13000
 
 
 
  JH21-160B JH21-200 JH21-200B JH21-250 JH21-250B JH21-315 JH21-400
Nominal force kN 1600 2000 2000 2500 2500 3150 4000
Stroke under
nominal force
mm 6 6 6 8 8 8 10
Slide block stroke mm 160 180 200 200 250 250 200
Number of stroke Fixed min-1 40 35 35 30 30 30 25
Variable
(Optional)
35-50 30-40 30-40 25-35 25-35 25-35 20-30
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 centre to the frame mm 380 390 390 420 420 420 420
Worktable dimensions(F.B×L.R) mm 740
1300
760
1400
760
1400
800
1400
800
1400
800
1400
760
1400
Dimensions of worktable hole mm φ300
50
φ260
φ300
50
φ260
φ300
50
φ260
φ320
50
φ280
φ320
50
φ280
φ320
50
φ280
φ320
50
φ280
Thickness of bolster mm 150 160 160 170 170 170 180
Hloe dimensions in bed (Diameter/ F.B×L.R) mm φ470 φ470 φ470 370
570
370
570
440
580
440
580
Dimensions of sideblock botton surface(F.B×L.R) mm 580
770
600
800
600
800
650
850
650
850
650
850
690
900
Size of the handle hole(Diameter×Depth) mm φ65
85
φ65
90
φ65
90
φ70
90
φ70
90
φ70
90
φ70
90
Distance between columns of body mm 850 870 870 960 960 960 960
Main motor capacity KW 15 18.5 18.5 22 22 30 37
Outline dimension(F.B×L.R×H) mm 2280
1550
3240
2500
1580
3320
2500
1580
3420
2730
1640
3550
2770
1700
4060
2770
1650
3550
2830
1680
3890
Net/Gross weight Kg 15500
17000
18800
20300
19000
20500
24500
26500
25300
27300
25500
28000
28500
31500
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