Adjustable Stroke Press (Nominal force: 250kN~2500kN) Manufacturer

Adjustable Stroke Press (Nominal force: 250kN~2500kN)

: http://pressing-machines.com/1-7-adjustable-stroke-press.html

Description
The JL21 series adjustable stroke press is a new generation of general sheet fabrication equipment developed at the basis of Japanese AIDA advanced technology. It is suitable for shearing, punching, blanking, bending and shallow drawing jobs.

The metal stamping press is configured with two-hand operation buttons and foot switch etc., which can realize continuous, single and micro-inching operating specification.

Parameters

Type			JL21-25	JL21-45	JL21-63	JL21-80	JL21-110	JL21-125	JL21-160	JL21-200	JL21-250
Nominal force		kN	250	450	630	800	1100	1250	1600	2000	2500
Nominal stroke		mm	3	4	4	5	6	6	6	6	8
Slide stroke		mm	10-110	20-120	10-150	10-150	10-160	10-160	16-160	19-180	21-220
Number of strokes	Fixed	Times/min	100	80	70	60	50	50	40	35	30
Number of strokes	Variable (Optional)	Times/min	80-120	70-90	60-80	50-70	40-60	40-60	35-50	30-40	25-35
Max. die height		mm	250	270	300	320	350	350	350	450	500
Die height adjustment		mm	50	60	80	80	80	80	110	110	120
Distance between slide center and frame (Throat depth)		mm	210	230	300	300	350	350	380	390	420
Column spacing		mm	450	550	620	640	710	760	810	870	960
Bolster area (F.B × L.R)		mm	400×700	440×810	580×900	580×1000	680×1150	680×1150	740×1300	760×1400	800×1400
Bolster thickness		mm	80	110	110	120	140	140	150	160	170
Bolster opening (Upper hole dia. × Depth × Lower hole dia.)		mm	φ170×20×φ150	φ180×30×φ160	φ200×40×φ180	φ200×40×φ180	φ260×50×φ220	φ260×50×φ220	φ300×50×φ260	φ300×50×φ260	φ320×50×φ280
Slide area (F.B × L.R)		mm	300×360	360×600	400×680	440×710	500×810	500×810	580×920	600×920	650×970
Shank hole (Dia.× Depth)		mm	φ40×60	φ40×60	φ50×80	φ50×80	φ60×80	φ60×80	φ65×90	φ65×90	φ70×90
Main motor power		kW	4	5.5	7.5	7.5	11	11	15	18.5	22
Outline dimension (F.B×L.R×H)		mm	1500×950×2650	1610×1170×2850	1680×1260×3050	1750×1310×3150	1850×1400×3250	1850×1450×3250	2250×1560×3765	2500×1580×3420	2730×1640×3550
Net weight		kg	3100	4350	6500	8500	10000	10700	14500	17950	25400

Configuration

High-rigidity steel-plate welded frame.
Combined dry pneumatic friction clutch
Cylinder type stroke adjusting structure
The slide is guided by eight-sided guide, among them, JL21-25 hydraulic presses by six-sided guide.
Hydraulic overload protection device
Automatic oil circulating lubricating system. JL21-25 employs electric grease lubrication.
JL21-63, JL21-80, JL21-110, JL21-125, JL21-160, JL21-200, JL21-250 series stamping presses adopt electric die height adjustment with digital display.
Lifting counterbalance cylinder
Dual solenoid valve
Integrated control panel (electronic cam included)
International brand PLC control
International brand buttons, AC contactor, air switch
Option: Air cushion (airbag type or cylinder type), automatic feeding shaft, photoelectric protective device, slide knockout device, and can be matched with all kinds of automation equipment.

Features of adjustable stroke press

Drive gears enclosed inside the press frame, gears immersed in oil for lubrication
The slide is a cast box structure fitted with hydraulic overload protector acting sensitively and reliably. After overloaded it can automatically reset that can reduce downtime as well as improve the working efficiency of the press machine.
Employ eight-sided rectangular lengthened guide with high guide precision and good precision retaining ability.
Adopting Omron programmable controller (PLC) for centralized control that can effectively guarantee the reliability of the electric control parts.
Japanese TACO duplex safety valve is employed to ensure the safety and reliability of clutch operation.
Cam controller made up of Schneider switches can send out signal accurately within 360°, precisely control all action specifications of main machine as well as coordination with accessory machine, so as to improve the running reliability of the press.

Related
metal press, metalwork tools , metal manufacturing machine, pressing machine