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Presses - C Frame Press

JH21 Series Open Back Press With Dry Clutch And Hydraulic Overload Protector

Features:-
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 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 protector, and can be equipped with various automatic equipment, which conform to the safety standard of press.

Description		Type	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	min¹	100	100	80	70	60	50	50
Number of stroke	Variable (optional)	min¹	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 x L · R)		mm	300X680	400X700	440X810	580X900	580X1000	680X1150	680X1150
Dimensions of worktable hole		mm	130x260	Ф170x20x Ф150	Ф180x300x Ф160	Ф200x40x Ф180	Ф200x40x Ф180	Ф260x50x Ф220	Ф260x50x Ф220
Thickness of bolster		mm	70	80	110	110	120	140	140
Hole dimensions in bed (Diameter x F · B x L · R)		mm	200x270	260X250	300X300	Ф365	Ф365	Ф400	Ф400
Dimensions of slide block bottom surface (F · B x L · R)		mm	270x330	300x360	340x410	400x480	420x560	500x650	540x680
Size of the handle hole(DiameterxDepth)		mm	Ф40x60	Ф40x60	Ф40x60	Ф50x80	Ф50x80	Ф60x80	Ф60x80
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 · H)		mm	1150x1050 x2050	1280x1050 x2050	1600x1200 x2400	1800x1210 x2520	1760x1280 x2700	2010x1400 x3040	2010x1400 x3050
Net/Goss weight		kg	2200/2500	2800/3250	4000/4500	6100/7000	8000/9200	11000/12200	11800/13000

Description		Type	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	200	200
Number of stroke	Fixed	min-1	40	35	35	30	30	30	25
Number of stroke	Variable (optional)	min-1	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 x L · R)		mm	740x1300	760x1400	760x1400	800x1400	800x1400	800x1400	800x1400
Dimensions of worktable hole		mm	Ф300x50x Ф260	Ф300x50x Ф260	Ф300x50x Ф260	Ф320x50x Ф280	Ф320x50x Ф280	Ф320x50x Ф280	Ф320x50x Ф280
Thickness of bolster		mm	150	160	160	170	170	170	180
Hole dimensions in bed (F · B x L · R)		mm	Ф470	Ф470	Ф470	370x570	370x570	440x580	440x580
Dimensions of slide block bottom surface (F · B x L · R)		mm	580x770	600x800	600x800	650x850	650x850	650x850	690x900
Size of the handle hole(Diameter x Depth)		mm	Ф65x90	Ф65x90	Ф65x90	Ф70x90	Ф70x90	Ф70x90	Ф70x90
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 · H)		mm	2280x1550 x3240	2500x1580 x 3320	2500x1580 x3420	2730x1640 x3550	2770x1700 x 4060	2770x1650 x 3550	2830x1680 x 3890
Net/Goss weight		kg	15500/1700	16500/18000	16500/1800	24500/2650	25300/2720	25500/2800	28500/31500

Note: Also available following special presses .

Mechanical Presses with Dry Clutch & Shearing Block Protector.
Adjustable Stroke Mechanical Presses with Dry Clutch & Shearing Block Protector.
Adjustable Stroke Mechanical Presses with Dry Clutch & Hydraulic Overload Protector.
Press with Wet Clutch & Hydraulic Overload Protector.
Link Press with Fixed Bed.
Adjustable Stroke Press with ‘Eight’ Face Slide Guide.

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