Open Back Mechanical Power Press Machine JH21 GUANGDONG

DECRIPTION

How does Mechanical Power Press Machine Work?

Open Back Mechanical Power Press Machine JH21 cut, stamp, form, or assemble metal or other materials with tools or dies attached to slides or plungers. Metalworking is done by placing the stock on the bottom die and tapping it with the top die. The upper die is connected to the crankshaft through a connecting rod, and the rotation of the crankshaft is completed by the motor, flywheel, and gear power transmission.

Features

• The combination of pneumatic wet friction disc clutch and brake makes the machine have the characteristics of long service life, low noise, and high safety. Both the gear pair and the sliding pair are heat treated, quenched, and precision ground, with smooth transmission and high precision.
• The mechanical power press machine adopts PLC control mode, and can also cooperate with the automatic feeding device to form a single-machine or multi-machine automatic stamping production line with high efficiency.
• The standard configuration of the Open Back Mechanical Power Press Machine JH21 is two-hand button operation, wet friction disc clutch manufacturing, hydraulic overload protection, adjusting motor, automatic lubrication system (models above 1100KN), and motor adjustment control height (models above 630KN).
• According to different production requirements, photoelectric protectors, constant speed motors, air cushions, output shafts, or mold protection devices can be chosen to install.

JH21 SERIES PARAMETERS 1

Unit	JH21-25	JH21-45	JH21-63	JH21-80	JH21-110
Nominal capacity		kN	250	450	630	800	1100
Rating Point A.B.D.C. (Above bottom dead center)		mm	2.8	3.2	4	5	5
Stroke Length		mm	80	120	140	140	180
Strokes Per Minute	Fixed	SPM	100	80	70	60	50
	Variable	SPM	50-100	45-90	45-85	45-75	35-65
Max. die height		mm	250	270	300	320	350
Slide adjustment		mm	50	60	70	90	90
Depth of throat		mm	210	225	270	290	350
Bolster Area  (FBLR)		mm	400×700	440×810	520×870	560×10000	680×1100
Thickness of bolster		mm	75	105	125	135	155
Bolster to ground		mm	775	815	895	915	900
Distance between columns		mm	470	510	560	670	700
Slide Area (FB LR)		mm	250×360	340×410	400×480	450×560	520×630
Shank hole（Diameter/depth）		mm	Φ40×60	Φ50×60	Φ50×65	Φ50×80	Φ60×80
Motor power		kW	3	5.5	5.5	7.5	11
Overall dimension	LR	mm	1095	1155	1235	1425	1545
	FB	mm	1485	1600	1690	1955	2150
	H	mm	2225	2680	2750	2910	3175
Total Weight (net)		kg	2300	3700	4550	6500	9700
Cushion capacity		kN	25	40	60	75	80
Cushion stroke length		mm	40	50	60	65	80
Air pressure used		MPa	0.6	0.6	0.6	0.6	0.6

Remarks: specifications are subject to change without notice.

JH21 SERIES PARAMETERS 2

Standard Configuration Wet-type Clutch

1. Oil pressure overload protective device
2. (JH21-63-400)Motor-driven slide block adjustment device (H21-63-400)
3. (JH21-25-45)Manual slider adjustment device (H21-25-45)
4. The pneumatic grease lubrication device
5. Slide block and die balancing device
6. Electronic cam controller
7. Digital die height indicator (Unit：0. 1mm)
8. Counter
9. Frequency control of motor speed
10. Over-run protective device
11. Double solenoid valve
12. Programmable controller
13. Stationary two-hand control button station
14. Coupling for air blowing
15. Coupling for air source
16. Misfeed detecting circuit
17. Inversion set of the main motor
18. Operating instruction and precision inspection table
19. Shockproof sizing block

Optional Configuration

1. Slider upper discharge device
2. Automatic feeding axis
3. Pneumatic die pad device
4. Gas liquid mold pad device
5. 220v single phase of the convenience receptacle
6. Lighting lamp for die
7. Footswitch
8. Movable two-hand control button station
9. Preset counter
10. Safety net
11. Foundation bolt
12. Quick die change device