JF21 Series Pneumatic Open Back Press With Dry Clutch And Shearing Block Protect-Perforated punch press machine-PRODUCT-Hebei Sade Machine Manufacturing Co., Ltd

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JF21 Series Pneumatic Open Back Press With Dry Clutch And Shearing Block Protector

1. Main Features

· Welded body with steel plate and high intensity.

· Main motor is made by Siemens.

· Adopts combined pneumatic friction clutch and brake.

· Cluster gear adopts the flooding oil lubrication.

· Six-face rectangle lengthen guide.

· Rigid pressing down style overload protector.

· JF21-25/25B/45 adopts manual shut height adjustment, among these types JF21-25/45 adopts scale display and JF21-25B with digital display.

· JF21-63 and above type adopts electric shut height adjustment with digital display.

· JF21-45 can equip with die set height adjustment motor, the value will be displayed by digital.

· JF21-25B, JF21-45 and above type equipped with lifting balance cylinder.

· Duplex valves imported.

· Adopt grease lubrication system.

· Balancing cylinder adopts manual 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.

2. Specifications

Model			JF21-25B	JF21-25	JF21--45	JF21-63	JF21-80
Capacity		kN	250	250	450	630	800
Nominal Stroke		mm	3	3	4	4	5
Slide Stroke		mm	60	80	100	120	140
SPM	Fixed	min^-1	100	100	80	70	60
SPM	Variable	min^-1	80-120	80-120	70-90	60-80	50-70
Max. Die Height		mm	200	250	270	300	320
Die Height Adjustment		mm	50	50	60	80	80
Between Slide Center & Frame		mm	160	210	230	300	300
Bolster (FB×LR)		mm	300×680	400×700	440×810	580×900	580×1000
Bolster Opening (Up Hole Dia.×Dpth×Low Hole Dia.)		mm	130×260	φ170×20×φ150	φ180×30×φ160	φ200×40×φ180	φ200×40×φ180
Bolster Thickness		mm	70	80	110	110	120
Bolster Opening (Dia./ FB×LR)		mm	200	260	300	390	390
Bolster Opening (Dia./ FB×LR)		mm	270	250	300	460	520
Slide Area (FB×LR)		mm	270	250	340	400	420
Slide Area (FB×LR)		mm	330	360	410	480	560
Shank Hole (Dia.×Dpth)		mm	φ40	φ40	φ40	φ50	φ50
Shank Hole (Dia.×Dpth)		mm	60	60	60	80	80
Between Columns		mm	448	450	550	560	640
Main Motor Power		kW	3	3	5.5	5.5	7.5
Outline Size (FB×LR×H)		mm	1150×1050	1300×1050	1390×1125	1580×1210	1640×1280
Outline Size (FB×LR×H)		mm	×2050	×2050	×2315	×3320	×2700
Net Weight		kg	2200	2600	3450	5400	7000