JH21 Series C Frame Press

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JH21 Series

Feature
1. The body of the JH21 series C frame press is welded by steel plates that have been subjected to tempering technique, so the machine is highly stable and precise.

2. The lengthened six-side rail is adopted for this press machine. The rails are highly anti-wear and precise.

3. The premium overload protection device is sensitive, reliable, and effective.

4. The enclosed bevel wheel of the JH21 series C frame press works stably, and the noise it quite small.

5. The wet clutch is adopted. It can work steadily and produce little noise. Besides, little maintenance is needed.

6. In our JH21 series C frame press, the sliding block is used to connect the pneumatic twin cylinder and thus the sliding block and the upper die can keep balance. Besides, the noise is reduced, and the gap between the connecting rod and sliding block is eliminated. Accordingly, the impact and abrasion that some important components suffered are also greatly reduced.

7. The PLC controlling system of the JH21 series C frame press is quite reliable. As a high precision pneumatic press, this metalworking machine comes with a pneumatic system, which is controlled by a duplex electromagnetic valve. Thus the machine can acquire the inching property, and press individually or continuously.

8. The key components like pneumatic component, electronic components, sealing elements, and buttons are all imported from widely recognized companies.

9. The optional properties of our JH21 series C frame press include air cushion, photoelectric protection, automatic feed, stepless speed control, quick change of die, and so on.

Picture of the details

The high precision gear, high pressure oil cylinder, crank shaft, and the transmission wheel for conveying belt

The mobile double-handed button box, touch screen, cam controller, and overload pump

Standard configuration
1. High performance wet clutch
2. Hydraulic overload protection pump
3. Electric lubricating system
4. Manual lubricating system
5. The balancing cylinder is adopted in our JH21 series C frame press for keeping slide and upper die balance.
6. Interface for the feed fault detector
7. Touch screen
8. Electronic crank shaft angle indicator
9. Cam controller
10. Electronic sliding block adjusting device
11. PLC (program logical controller)
12. Material cast off device
13. Quick joint for air
14. Cushioning pad
15. Work lamp
16. Interface for the pneumatic material removing device
17. Second protection
18. Predetermined counter

Optional device
1. Dry clutch
2. Air cushion
3. Photoelectric curtain
4. Die quick change device
5. Foot pedal type switch
6. Auto-feeding shaft
7. Motor speed controller with variable frequency drive

Technical parameter

Parameter		Code	Unit	JH21-25	JH21-45	JH21-60	JH21-80	JH21-125	JH21-160	JH21-200	JH21-250	JH21-315	JH21-400
Nominal capacity		Pe	KN	250	450	600	800	1250	1600	2000	2500	3150	4000
Nominal pressure stroke		Sp	mm	3	4	4	5	6	6	6	6	7	8
Nominal slide stoke		S	mm	80	120	140	160	180	200	250	250	250	270
Slide strokes speed	Fixed	n	Times /min	100	80	70	60	50	45	45	30	30	30
Slide strokes speed	Variable	n	Times /min	60-100	50-80	45-70	40-60	35-50	30-45	25-45	20-30	20-30	20-30
Maximum die set height		H2	mm	250	270	300	320	350	400	450	500	500	550
Die height adjustment		t	mm	50	60	70	80	90	100	110	120	120	120
Throat depth		C1	mm	210	225	270	310	350	390	430	450	450	490
Distance between posts		d1	mm	450	500	560	620	680	720	900	980	980	1050
Slide bottom size	Left-Right	a	mm	360	410	480	540	620	700	880	950	950	1020
Slide bottom size	Front-Back	b	mm	250	340	400	460	520	580	650	700	700	750
Stemhole size	Diameter	d	mm	40	50	50	50	70	70	70	70	70	70
Stemhole size	Depth	I	mm	65	60	70	65	90	100	100	130	130	130
Working table size	Left-Right	C	mm	720	810	920	950	1070	1170	1390	1500	1540	1700
Working table size	Front-Back	D	mm	400	440	520	600	680	760	840	880	880	950
Working table thickness		H3	mm	80	110	130	140	155	165	180	190	190	290
Working table surface height		H1	mm	780	800	900	900	900	900	920	920	1000	1100
Dimensions	Front-Back	A	mm	1346	1435	1540	1765	2040	2305	2690	2660	2720	2850
	Left-Right	B	mm	945	1075	1200	1200	1320	1420	1540	1640	1680	1750
	Height	H	mm	2120	2391	2570	2725	3035	3215	3810	3785	3865	4150
Distance Between Foundation Bolts	Front-Back	a1	mm	830	950	1100	1210	1510	1670	2020	2150	2140	2185
Distance Between Foundation Bolts	Left-Right	b1	mm	690	745	840	920	1040	1140	1360	1460	1500	1570
Motor Power	Power		KW	3	5.5	5.5	7.5	11	15	18.5	22	30	37
Approx. weight			KG	2380	3500	5150	7950	10350	15400	20500	23600	27600	29500

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