LN28 series four column fast hydraulic stretching machine

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LN28 four column fast hydraulic stretching machine
LN28 series four column fast hydraulic stretching machine

brief introduction：The LN28 series four column rapid hydraulic stretching machine is designed and manufactured specifically for the aluminum and stainless steel product industries. It is particularly suitable for the extrusion forming of aluminum sheets and aluminum products, as well as the extrusion forming of stainless steel sheets and stainless steel products. It is also suitable for processes such as shaping, trimming, flanging, bending, or composite stretching of metal materials.This series of models is widely used in industries such as kitchenware, tableware, hardware, automobiles, motorcycles, etc.

Product Category

LN28 four column fast hydraulic stretching machine

LN32 four column universal hydraulic press

LN32-S precision punching machine

LN33 four column upward moving hydraulic press

LN34 frame up moving hydraulic press

LN34-R steel wire winding hydraulic press

LN34-S frame down pressure hydraulic press

LN41 single column hydraulic press

LN61 four column three-way hydraulic press

LN64 four column fast hydraulic cold extrusion machine

LN98 four column water bulging hydraulic press

LN99 internal high-pressure forming hydraulic press

Product Feature

The movable crossbeam has two sections of speed, fast descending without load, slow profiling and pressing, fast return, and high work efficiency;
Automatic material return device, simplifying mold structure;
Automatic counting function;
The main sealing components are imported products, with a long service life;
The key electrical components adopt well-known brands from Europe, America, and Japan, with high working reliability;
The hydraulic components are selected from internationally renowned brands to ensure good performance;
The surface of the column and piston rod are treated with medium frequency and plated with hard chromium;
Equipped with infrared protection device for safer operation;
Centralized lubrication system to extend the service life of the machine;
Multiple working modes: main cylinder fixed stroke and constant pressure optional, lower cylinder edge pressing and material returning optional, material using or not using optional, lower cylinder using or not using optional.

Product Use

The LN28 series four column rapid hydraulic stretching machine is designed and manufactured specifically for the aluminum and stainless steel product industries. It is particularly suitable for the extrusion forming of aluminum sheets and aluminum products, as well as the extrusion forming of stainless steel sheets and stainless steel products. It is also suitable for processes such as shaping, trimming, flanging, bending, or composite stretching of metal materials.
This series of models is widely used in industries such as kitchenware, tableware, hardware, automobiles, motorcycles, etc.

Technical Parameter

Project		Unit	Parameter
Project		Unit	LN28-200	LN28-350	LN28-400	LN28-600	LN28-800	LN28-1000	LN28-1200
Nominal force		KN	1500	2500	2500	4000	5000	6000	8000
Main cylinder liquid working pressure		Mpa	20	20	20	20	26	24	25
Return force (at 16MPa)		KN	70	103	103	143	290	290	290
Edge holding force		KN	500	1000	1500	2000	3000	4000	4000
Maximum liquid pressure of edge pressing cylinder		Mpa	20	26.5	24.5	25	24	25	25
Top output force (at 20MPa)		KN	60	60	60	60	60	60	60
Travel of movable crossbeam		mm	560	650	650	700	700	850	900
Edge pressing stroke		mm	280	325	325	350	350	400	450
Maximum stroke of top ejection		mm	220	280	280	320	320	350	400
Distance from the movable crossbeam to the workbench	Maximum	mm	960	1165	1165	1200	1200	1300	1400
Distance from the movable crossbeam to the workbench	Minimum	mm	400	515	515	500	500	450	500
Moving beam lifting speed	Fast down	mm/s	192	220	220	200	120	120	120
	Slow pressurization	mm/s	18-23	13.6-20	13.6-20	12.6-18	10-17	11-15	8.5-12
	Fast return	mm/s	>250	250	250	280	≥190	≥190	≥190
The height of the workbench from the button surface		mm	1090	1300	1456	1550	1780	1980	2130
Motor power		KW	20	37	37	55	55+1.5	75+1.5	75+1.5
Effective area of workbench		mm	700×850	900×1000	1000×1100	1100×1300	1300×1500	1500×1800	1800×1500
Overall dimensions	About	mm	1850	2180	2200	2400	2300	2560	2840
	Around	mm	1660	1700	1700	2000	1900	1900	1500
	Height	mm	3650	4200	4400	4760	5140	5330	5840
Total weight of the entire machine(approximately)		t	6.3	11.5	13.2	19.6	33	43	58