JH21 Pneumatic Punching Machine

JH21 Hydraulic Punching Machine can be used to cut holes of any shapes in materials. There are multiple types of Sheet Punching Machines used to cut holes on metal sheets such as MS/SS/Aluminium/Copper/Brass etc. The hydraulic punch press can also punch Angle, I-beam, Plates and C Channel. Punching Shapes can include oblong hole punching, slot hole punching, round hole punching, and square hole punching and many others as required.

Advantages of Hydraulic Punching Machine

● High rigidity
● Stable high precision
● Reliable and safe operation
● Automated production, labor-saving, high efficiency
● Slider adjustment mechanism
● Novel design, environmental protection
● Better forming and drawing capabilities
● Better for smaller runs.
● Shut height variations don’t affect the force that can be applied

Applications of Hydraulic Punching Machine

The sheet metal punching machine for sale is widely used in stamping and forming of electronics, communications, computers, household appliances, furniture, transport (cars, motorcycles, bicycles), metal parts, etc.

Whole structure of the Power Press

1. Steel plate welded c frame body, heat treatment, produced by cnc boring and milling center, high rigidity, accuracy and stability;

2. Wet type pneumatic clutch with safety solenoid valve, lower noise and longer service life.

3. Best quality gears, bushes, cylinders, link rods and ball screw ensure the high performance, high reliability and longer service life.

4. Hydraulic overload protected system is standard equipped. The press will stop with oil pressure release if overload to protect the press and the die. It is easy to reset to normal status.

5. The hydraulic punching machine for sale adopts pneumatic balancing device design method greatly ensures the relative stability of the machine operation. Molding accuracy up to 0.1mm, safe, portable, reliable.

6. Adopts combined pneumatic friction clutch and brake.

7 . Cluster gear adopts the flooding oil lubrication.

8 . Equipped with hydraulic overload protecting device.

9 . Six-face rectangular lengthened guide, CP1-315B/400B with eight–face lengthened guide

10. Electric compelling grease lubrication system.

11. Balancing cylinders adopts manual lubrication system.

12. One set of blowing device.

Technical

			JH21-25B	JH21-25	JH21--45	JH21-63	JH21-80	JH21-110	JH21-125	JH21-160B
Capacity		kN	250	250	450	630	800	1100	1250	1600
Nominal Stroke		mm	3	3	4	4	5	6	6	6
Slide Stroke		mm	60	80	100	120	140	160	160	160
SPM	Fixed	min-1	100	100	80	70	60	50	50	40
	Variable		80-120	80-120	70-90	60-80	50-70	40-60	40-60	35-50
Max. Die Height		mm	200	250	270	300	320	350	350	350
Die Height Adjustment		mm	50	50	60	80	80	80	80	110
Between Slide Center & Frame		mm	160	210	230	300	300	350	350	380
Bolster (FB×LR)		mm	300×680	400×700	440×810	580×900	580×1000	680×1150	680×1150	740×1300
Bolster Opening (Up Hole Dia.×Dpth×Low Hole Dia.)		mm	130×260	φ170×20 ×φ150	φ180×30 ×φ160	φ200×40 ×φ180	φ200×40 ×φ180	φ260×50 ×φ220	φ260×50 ×φ220	φ300×50 ×φ260
Bolster Thickness		mm	70	80	110	110	120	140	140	150
Bolster Opening (Dia./FB×LR)		mm	200×270	260×250	300×300	390×460	390×520	420×540	420×540	φ470
Slide Area (FB×LR)		mm	270×330	300×360	340×410	400×480	420×560	500×650	540×680	580×770
Shank Hole (Dia.×Dpth)		mm	φ40×60	φ40×60	φ40×60	φ50×80	φ50×80	φ60×80	φ60×80	φ65×85
Between Columns		mm	448	450	550	560	640	760	760	850
Main Motor Power		kW	3	3	5.5	5.5	7.5	11	11	15
Outline Size (FB×LR×H)		mm	1150×1050 ×2050	1300×1050 ×2050	1390×1200 ×2400	1580×1210 ×2520	1640×1280 ×2700	1850×1450 ×3060	1850×1490 ×3060	2280×1550 ×3240
Net Weight		kg	2200	2600	3450	5400	7000	9340	9900	14500

Controller System and Cluth

● The Press adopts the low inertia combined dry pneumatic friction clutch and brake , Smoother press performance, easier maintenance, to ensure reliable safety and flexible action Low noise, long service life.

● Driving gear is installed into the frame and gear is immersed in oil reservoir. Customer could choose Electromagnetic governor.

● Use adopts dual valve which can guarantee the safety and reliability of clutch.

● Pneumatic dual balance cylinder, which balances the slide block and punch weight to reduce noise and impact;

● The press adopts cam controller which be combined with proximity switch (Schneider)

Detail