4-Roller Plate Bending Machine,4 roller rolling machine

W12NC Series

4-Roller Plate Bending Machine

Product Description

4-Roll Plate Rolls Great Solutions For Great Challenges DURMAPRESS® manufactures 4 rolls hydraulic plate bending machines with capacity in thickness from 2 mm to 200 mm and in width from 500 mm to 12000 mm.Prescide, Productive and Reliable As well as being reliable, This increases productivity with its high speed rolling ability and it overcomes the most challenging bends thanks to its ease of use. Since the plate is pinched during rolling, skidding and slipping of materials are prevented. Thus, more. 4-Roll Plate Rolling Machines, one of the side rolls can be used as a squaring roll, thus the plate can be easily and precisely aligned along the roll across the input direction

Working Principle

Standard Components:

Standard Component

Movable control panel
Hardened rolls
Digital read out for both rolls
Hydraulic station
Hydraulic motor
Hydraulic drop end
Cone bending device

Optional Component

Top and lateral support rack for big diameter
Ground and polished rolls for special job
Safety cable
Fan cooled or water cooled

Specifications

• Lateral rolls and pinch roll always move in orbital way with help of hydraulic pistons

• With hydraulic drop end,it’s convenient and easy to remove finished ferrule
• Mobile control panel lead to easy operation
• Hydro-motor provides power for top roll
• High quality welded steel frame
• Good rigidity induction hardened rolls(42CrMo)
• Easily control hydraulic balance system
• Reliable and safety overload protection

Release Device

Hydraulic drop-end for easy removal offinished ferrule.

PLC Control system

HMl (human machine interface), intelligentoperation. Self-compensating, single operate,high efficiency, safe and convenient.
Many models for choice, economic numericalcontrol model.
APLC control system ensure the machine' sbottom and lateral rolls operate synchronously.Up to eight steps can be programmed with thetouchscreen.

Advantages:
The 4 Rollers Plate Bending Machine is the easiest one, thanks to a frame designed to satisfy every kind of needs.

Advantages are various :

1.Pre- rolling is highly reduced because the material gets pinched by in between the two central rolls.
2. Working can be made in one only pass, following the steps here below:
• Squaring
• Pre- rolling rolling
• Closing pre- rolling
3.The plate is fed into the machine horizontally thanks to the support of the lower roll (B) with the side roll (D).
4.The plate is squared thanks to the position that the side roll (C) takes.
5.The space to the limit of the machine reduces to one side only, thanks to the possibility of squaring and rolling in one only step.

The Structure of the 4-Roller Plate Bending Machine

A four-roll oling machine is mainly composed of these parts: hydraulic positioning cylinder,control panel, top roll, side roll bottom rol.machine frame.

The four-roller rolling machine is suitable for the rolling forming work of sheet metal lt can roll round,curved and tapered woripieces within acertain range, and has the function of pre- rolling at the end of the sheet. The remaining straight edges are small and the work eficiency ishigh.The metal sheet can be roughly leveled on the machine.

DURMAPRESS Solid rolls made by 42CrMo

Solid rolls made by 42CrMo

Product Range

The W12CNC series machine is available in more than 20 different sizes that cover a pre-bending range of wall thicknesses of up to 320 mm. Standard sizes can be built with roll lengths of up to 4 500 mm. Special designs with roll lengths of up to 8 000 mm are feasible.

DURMAPRESS Economic Smart Series

Includes Following Features And Properties

Less Waste, Less Maintenance

High Performances

Same Job, 50% Less Energy

High Dynamic Y-axis Control

Over 30% higher productivity

Technical Data

Model	Max. Bending thickness(mm)	Pre-bending thickness(mm)	Max. Working length of rolls(mm)	Yield limit (Mpa)	Top roller diameter(mm)	Lower roller diameter(mm)	Side roller diameter(mm)	Main power(KW)
W12-4x2000	4	3.5	2050	245	160	140	120	3
W12-4x2500	4	3.5	2550	245	190	170	150	4
W12-6x2000	6	5	2050	245	190	170	150	4
W12-6x2500	6	5	2550	245	210	190	170	5.5
W12-8x2000	8	6.5	2050	245	210	190	170	5.5
W12-8x2500	8	6.5	2550	245	230	210	190	7.5
W12-8x3000	8	6.5	1960	245	270	250	210	11
W12-10x2000	10	8	2050	245	270	250	210	7.5
W12-10x2500	10	8	2550	245	270	250	210	11
W12-10x3000	10	8	3100	245	300	270	220	11
W12-12x2000	12	10	2050	245	270	250	210	11
W12-12x2500	12	10	2550	245	300	270	220	11
W12-12x3000	12	10	3100	245	330	300	240	11
W12-16x2000	16	13	2050	245	300	270	220	11
W12-16x2500	16	13	2550	245	360	330	250	15
W12-16x3000	16	13	3100	245	360	330	250	15
W12-20x2500	20	16	2550	245	360	330	250	15
W12-20x3000	20	16	3100	245	390	360	300	18.5
W12-25x2500	20	20	2550	245	360	330	250	15
W12-25x3000	25	20	3100	245	430	390	330	22
W12-30x2500	30	25	2550	245	430	390	330	22
W12-30x3000	30	25	3100	245	460	420	360	30
W12-40x3000	40	32	3100	245	550	510	420	45

Components

Name	Details	Manufacturer	Remarks
Hydraulic system	•Pump Station	ChangYuan,China	Options: Sunny,USA
Hydraulic system	•Valve	Yuken,Japan
Control Device	•Low Voltage Apparatus	Siemens,Germany
Drive Device	•Motor	Hanzhu,Ningbo
Side Frame and Chassis	•Material	Q235
	•Techniques	Side Roller Lift Cylinder Material for 45# forgings, quenching and tempering heat treatment HB217-255
	•Techniques	Fixed and tipping side frame and chassis are welding pieces of steel plate
Working roller	•Material	42 CrMo
	•Techniques	Forging piece go through rough machining then quenching and tempering treatment at HB241~280
	•Techniques	Finish turning then medium frequency quenching of surface at HRC40-45
Electrial Control System	•Touchwin from China	Durmapress
Sealings	•Nok from Japan	SDKELI / DSP
Bearing	•WFD	Durmapress
PLC Encoder	•Omron	Japan
Other Electrical Parts	•Siemens	Germany