Coil slitting machine

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Nantong Liwang Shearing and Bending Machine Tool Co., Ltd. is one of the key enterprises in the national machinery industry producing shearing and bending machine tools. It mainly produces the "Liwang" brand series of bending machines, shearing machines, plate rolling machines, and decoiling leveling shearing production lines.

Liwang

Keywords: Hydraulic Press | Corner Cutting Machine | Shearing Machine | Bending Machine

Tel:

86-513-88283334

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Product Description

The products are specially designed to provide the required specialized machinery and complete sets of equipment for industries such as aviation, light industry, shipbuilding, metallurgy, chemical, construction, automotive, electronics, electric power, and decoration. The products are sold nationwide and to Southeast Asia, as well as exported to Europe and America.

　　1. Machine Model and Name

　　　1.1 Name: CNC Bending Machine

　　2. Accuracy of CNC Machine Axes

CNC Axes	Repeatability	Control Accuracy
Y Axis (Y1, Y2)	0.01mm	0.02mm
X Axis	0.02mm	0.05mm

　　3. Product Standards:

　　Q/HSD 76706-2006 "CNC Sheet Bending Machine Accuracy"

　　4. Overall Machine Performance

　　　4.1 Structural parts are welded steel plates with strong rigidity.

　　　4.2 Structural parts are rust removed by grinding and coated with anti-rust paint.

　　　4.3 The machine's columns, upper working slider, and lower workbench are processed using a large floor boring and milling machine with one-time integral machining to ensure overall machining accuracy.

　　　4.4 Upper moving bending design ensures stable operation, convenient handling, and safety.

　　　4.5 Pressure holding delay function at the bottom dead point ensures workpiece accuracy.

　　　4.6 Large slider stroke with high parallelism tolerance on both sides.

　　　4.7 Under national relevant standards, bending angle accuracy can reach ±30'.

　　　4.8 Equipped with slow descent control function, allowing operators better control of the workpiece.

　　　4.9 Workbench deflection compensation function ensures bending accuracy.

　　　4.10 The back gauge driven by servo motor control is fast, smooth in transmission, highly accurate, and low in noise.

　　5. Hydraulic System

　　　5.1 Uses Rexroth Germany's dedicated synchronous control system for bending machines, achieving high synchronization control accuracy. The hydraulic system has overload relief protection, ensuring safety and reliability.

　　　5.2 Gear pump selected for high pressure resistance and low noise.

　　　5.3 Cylinder: 45# steel with tempering treatment, precision bored and ground inner hole.

　　　5.4 Piston: 45# steel with tempering treatment, outer circle high-frequency quenching or chrome plating, precision grinding, and vibration grinding (super finishing).

　　　5.5 Seals from Japan NOK company, with good sealing performance, reliable operation, and long service life.

　　　5.6 Clear and intuitive oil level and temperature display.

　　　5.7 Hydraulic system has coarse and fine two-stage filtration with high filtration accuracy.

　　6. Electrical Control System

　　　6.1 Key electrical components are imported, meet international standards, are safe and reliable, have long service life, strong anti-interference ability, and the electrical control cabinet has heat dissipation function.

　　　6.2 Movable foot switch operation with emergency power-off function.

　　7. Functions of CNC Axes

　　　7.1 Y1 and Y2 axes control slider stroke to control bending angle.

　　Two grating rulers (Y1-Y2) are installed at both ends of the machine to measure the exact position of the slider relative to the workbench; the grating rulers are connected to the workbench so that column deformation does not affect slider positioning. Position data is immediately fed back to the CNC system, which calculates the output servo valve control signal.

　　　7.2 V axis uses crowning control axis (deflection compensation).

　　Using LVD's unique crowned workbench design and manufacturing technology, an ideal crowning curve is formed to achieve compensation along the full length, offsetting deformation of the slider and workbench under load, improving product quality.

　　　7.3 X axis is the back gauge control axis, used to control the flange size of the bending machine.

　　The X axis uses an imported servo motor driving a ball screw via a synchronous toothed pulley. Two back gauge fingers maintain synchronization during movement. Transmission is smooth, with high accuracy and low noise.

　　8. Molds

　　One set of standard upper and lower molds.

　　Standard fixture: quick clamp.

　　9. Machine's Anti-Eccentric Load Capability

　　The machine's power servo system is a position control system that dynamically detects slider synchronization error via grating rulers. The CNC system sends electro-hydraulic servo valve signals to correct slider synchronization error, ensuring the slider remains parallel to the workbench even under full eccentric load.

　　10. CNC System

　◇ DELEM DA-52S CNC system from the Netherlands (standard configuration)

　　· One-page parameter quick programming

　　· Navigation shortcut keys

　　· 7" widescreen color TFT

　　· Max four-axis control (Y1, Y2, and two additional axes)

　　· Workbench deflection compensation control

　　· USB peripheral interface

　　· Advanced Y-axis control algorithm, capable of controlling both closed-loop and open-loop valves

　　· Panel-mounted structure, optional hanging box

　　　　◇ DELEM DA58T/DA66T/DA69T CNC systems from the Netherlands (optional)

　　11. Key Imported Components

　　◇ CNC system: DELEM, Netherlands

　　◇ Mold block: DELEM, Netherlands

　　◇ Servo valve group: Rexroth, Germany

　　◇Pressure valve group Rexroth, Germany

　　◇Grating scale Heidenhain, Germany

　　◇Rod seal ring NOK, Japan

　　◇Seal ring NOK, Japan

　　◇Cylinder seal ring NOK, Japan

　　◇Dust seal ring NOK, Japan

　　◇Guide belt NOK, Japan

　　◇Servo motor Estun

　　◇Servo drive Estun

　　12. Other standard configurations of the machine tool

　　◇Ball screw for X-axis drive

　　◇4 pieces of rear material stopper claws

　　◇1 set of foot switch

　　◇4 pieces of foundation bolts

　　◇4 pieces of shim plates

　　◇1 set of user manual

　　13. Main technical parameters of the machine tool

WC67Y Digital display bending machine
Model	Nominal force	Workbench length	Distance between columns	Throat depth	Cylinder stroke	Max opening height	Slide speed			Main motor power	Overall dimensions	Machine weight
	Nominal force	Workbench length	Distance between columns	Throat depth	Cylinder stroke	Max opening height	Fast down	Working feed	Return	Main motor power	Overall dimensions	Machine weight
	KN	mm	mm	mm	mm	mm	mm/s	mm/s	mm/s	KW	mm	kg
WE67K-63/2500	630	2500	2050	250	150	330	100	8	100	5.5	2750×1400×2180	5100
WE67K-100/2500	1000	2500	2050	320	150	420	100	10	70	7.5	2750×1600×2450	6200
WE67K-100/3200	1000	3200	2600	320	150	420	100	10	70	7.5	3450×1600×2450	7650
WE67K-100/4000	1000	4000	3200	320	150	420	100	10	70	7.5	4250×1800×2720	8900
WE67K-125/3200	1250	3200	2600	320	150	420	100	8	70	7.5	3450×1600×2450	8100
WE67K-125/4000	1250	4000	3200	320	150	420	100	8	70	7.5	4250×1800×2720	9450
WE67K-160/3200	1600	3200	2600	320	200	470	140	9.5	100	11	3450×2050×2900	10700
WE67K-160/4000	1600	4000	3200	320	200	470	140	9.5	100	11	4250×2050×2900	13000
WE67K-200/3200	2000	3200	2600	320	220	510	140	10	110	15	3450×2000×2900	12700
WE67K-200/4000	2000	4000	3200	320	220	510	140	10	110	15	4250×2000×3100	15100
WE67K-200/5000	2000	5000	4000	320	220	510	140	10	110	15	5250×2100×3200	17500
WE67K-200/6000	2000	6000	4800	320	220	510	140	10	110	15	6250×2100×3200	18500
WE67K-250/3200	2500	3200	2600	400	240	530	140	8	100	18.5	3450×2000×2900	16000
WE67K-250/4000	2500	4000	3200	400	240	530	140	8	100	18.5	4250×2000×3000	18000
WE67K-250/5000	2500	5000	4000	400	240	530	140	8	100	18.5	5250×2100×3200	21000
WE67K-250/6000	2500	6000	4800	400	240	530	140	8	100	18.5	6250×2100×3200	23000
WE67K-300/3200	3000	3200	2600	400	240	560	140	8	110	22	3450×2280×3200	19300
WE67K-300/4000	3000	4000	3200	400	240	560	140	8	110	22	4250×2380×3300	22000
WE67K-300/6000	3000	6000	4800	400	240	560	140	8	110	22	6250×2380×3500	29300
WE67K-400/4000	4000	4000	3200	400	240	560	80	8	60	30	4250×2350×3595	30000
WE67K-400/6000	4000	6000	4800	400	240	560	80	8	60	30	6250×2350×3595	35000

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Nantong Liwang Shearing and Bending Machine Tool Co., Ltd.

Service Hotline:

86-513-88283334

Phone:86-13862718848 (Mr. Wang)

Fax: 86-513-88281298

Email: wangyihaian@126.com

Address: Hongqi Industrial Concentration Area, Libao Town, Haian County (180 meters north of Wuta Bridge)

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