Features of Hydraulic Shearing Machine, QC11Y :
Guillotine beam design
High precision, three-point rollers guide
The metal machining machine adopts whole welding structure
Integration hydraulic system
Motorized back gauge with digital display
Manually blade clearance adjustment
Variable shearing angle: so the shearing machine can reduce the deformation of the shearing piece
Easy material feeding system for the equipment of inward structure upper knife carrier
A counter is adopted to controlling the number of shearing
Standard front extensive arms
Four cutting edges blade to prolong working life
Foot pedal can be used to emergency stop

Applications of Hydraulic Shearing Machine, QC11Y :
Our metal machining machine (plate shearing machine) can be used to cutting spitted hot ends, cold bars and scraps etc.

Components of Hydraulic Shearing Machine, QC11Y :

Guide schematic drawing of the metal machining machine
Three-point rollers guide: through the force to the front rollers by the spring to keep the shearing beam touching tightly with the two back rollers.

Back gauge

Working table schematic drawing of the shearing machine
Special working table structure:
It can compensate the curving of the knife carrier under the shearing force;
It can keep the blade clearance to be same;
It will help to improve the shearing accuracy of the metal machining machine.

Adjustable Shearing Angle
The shearing angle of the machine tool can be adjusted according to the sheets' thickness.

Ball Transferring Working Table
The ball transferring can help to reduce the contact area and fabrication between the sheet and the surface of the working table.

Hydraulic System
This shearing machine adopts the integration hydraulic system to improve the performance reliability.

Electric Components
Siemens electric components are adopted, so it is convenient to maintenance.

Foot Pedal
This metal machining machine is equipped the foot pedal to control the stokes.

Shearing Blade
Four cutting edges blade, prolong the working life of the shearing machine.

Back gauge raise system
The system is suitable for shearing long length plates, so the application of the plate shearing machine is enlarged.

Descriptions of Hydraulic Shearing Machine, QC11K:
The plate shearing machine adopts three-point rollers guide
The metal machining machine is equipped with Bosch-Rexroth hydraulic system
Shearing angle, blade clearance, back gauge and stroke CNC control (optional)
Back gauge driven by servo motor, ball screw and linear guide
DELME DAC-310 or DAC-360 control system is adopted in the machine tool.

Bosch-Rexroth Hydraulic System

Ball Screw and Linear Guide
Back gauge driven by servo motor, ball screw and linear guide

Descriptions of Hydraulic Shearing Machine, QC12Y :
Swing beam design
Aligning by light
Concise hydraulic control to improve the reliability of the metal machining machine.

Features of Hydraulic Shearing Machine, QC12Y :
The plate shearing machine has a deep throat, so it is convenient to shear plates etc.

Donghai is a China hydraulic swing beam shearing machine manufacturer and supplier. Our company locates in Nantong, Jiangsu province, east to Yellow Sea, facing Yangtze River on the south. It is also close to Suzhou and Shanghai with convenient transportation, especially shipping. Therefore, your transportation cost can be saved in a large part. Our products mainly include rolling machine, press brake, shearing machine and hydraulic press brake. Welcome global customers to contact us!

Applications of Four Roller Rolling Machine,W12 :
This plate bending machine is used to pre-bending and coiling various oil tanks, ships and water tanks etc. in the industries such as the pressure container, machinery, hydroelectricity, architecture. The machine tool also has the function of coiling and leveling.

Descriptions of Four Roller Rolling Machine,W12 :
1. The upper roller is the main drives. It drives the lower roller and side rollers through the friction force between the plate and the rollers, which offer the torsion for the coiling.
2. The upper roller is droved by motor, lower roller, side rollers, reversal frame and supporting rollers are hydraulic transmission.
3. The lower rollers move vertically; side roller move slant; synchronization precision is ≤ ±0.15mm.
4. The lower roller ascending to nip the plate to complete pre-bending of the plate; the side rollers ascending to complete the end pre-bending of the plate.
5. This machining machine has the symmetry bending and asymmetry bending capacity through changing the position of the side rollers;
6. This Rolling Machine adopts the central lubrication system.
7. OMRON PLC control system is employed in the plate bending machine.
8. High accuracy of the low roller and side roller position sensors are available for the adoption of light encoders.

Schematic Diagram of the Four Roller Rolling Machine,W12

Composition of Four Roller Rolling Machine,W12 :
The metal machining machine consists of the main structure, upper roller setting, main transmission setting, lower roller setting, equilibrator setting, reversal setting, base plate, electric system, hydraulic system and lubricating system.
Main structure
Main structure of the Four Roller Rolling Machine,W12 consists of base, fixed side frame and reversal side frame. Each part is steel welded structure;
The frames of the machine tool are positioned on the base by screws; and the two supports are connected together by articulated beam;
There are lead rails for lower roller and side rollers on the two side frames. In the fixed side stand, there is a closed structure bearing box of the upper roller. In the reversal side, there is supporting setting for the reversal side frame. The force during the coiling is endured by the two side frames;

Upper roller setting
Upper roller material 40Cr, tempering HB260-300, HRC45-50

Lower roller setting
Lower roller setting of the Rolling Machine is composed by lower roller bearing base, bearing, lower roller cylinder, lower roller hydraulic motor and so on.
Lower roller material 40Cr, tempering HB260-300, HRC45-50

Side roller setting
Side roller setting of the metal machining machine is composed by two side bearing base, bearing, side roller cylinder and so on.
Side roller material 40Cr, tempering HB260-300, HRC45-50

Reversal setting
Reversal setting of the plate bending machine is composed by ram, reversal cylinder and so on; it's easy to draw out the finished working piece.

Main transmission setting
It composed by YZR motor, V-type texrope and reducer.

Equilibrator setting
It adopts helix structure;
It's installed at the fixed side and could be tightened at the base through bolts.

Lubricating system
The main reducer and side rollers reducers adopt splash lubrication and natural cooling.
When surrounding temperature is -100℃, the lubrication oil type is N46, N48.
When surrounding temperature is 040℃, the lubrication oil type is N68, N100, N150, N200;
Oil gun can also be used to lubricate the other lubricating points; lubrication greases is ZGN40-1(winter) and ZGN40-2(summer), twice per duty.
Hydraulic system
The hydraulic system of the machine tool is composed of gear pump, valve group, and pipes. The system is composed by pressure adjusting circuit, synchrony circuit and speed circuit.
The pressure adjusting circuit can adjust the working pressure of the Rolling Machine through the overflow valve;
The Max pressure is 19.5Mpa;
The synchrony circuit separates roughly the hydraulic oil to the ascending and descending of the upper roller through the by-pass valve;
The restrictor valve adjust the upper roller ascending and descending;
The displacement transducer is adopted to detect the displacement, the synchronization precision is ±0.15 mm;
The speed circuit is used to control the dumping and resetting of the reverse device through adjusting the restricting speed by restrictor valve.
Electric system
Electric control system of the metal machining machine consists of controlling table, hand button box.
The motivate power is three-phase four lines 380V/50Hz.
Controlling circuit adopts PLC programming control system and it has a long service life.
Control box is equipped with all controlling buttons and direction lights: so the working status of the Rolling Machine can be monitored.

Descriptions of Mechanical Rolling Machine, W11 :
There are three rollers equipped in the Rolling Machine;
The metal machining machine adopted mechanical drive;
Symmetry bending: so the machine tool is easy to be operated.

Descriptions of Rolling Machine, W11s :
The machine tool can be used to make the steel plate into barrel shape, circular shape and conical shape etc.
1. The upper roller of the metal machining machine can move vertically as well as horizontally;
2. The plate bending machine can finish the pre-bending work and coiling work at the same machine.
3. Drum-type design upper roller: so the metal machining machine has the anti-deformation function.
4. Support rollers are equipped under the lower rollers: so it can help to coil products with high precision.
5. The lower rollers are fixed symmetrically and they are driven by mechanical drive.
6. Upper roller ascends or descends at the central symmetric location of the lower rollers; the ascending and descending are hydraulic driven.
7. Upper roller of the metal bending machine moves to the left or right position to prepare for pre-bending work. The limited switches control the shift position.
8. PLC control is adopted to control the upper roller and LCD display is employed for displacement in the metal machining machine.
9. Hydraulic drive is employed for dumping and resetting of the reverse head unit.
10. The control system of the Rolling Machine is movable: so you can operate the machine tool at any position.

Main Structure of Rolling Machine, W11s :
The Rolling Machine composed of upper rollers, lower rollers and horizontally move device, support roller device, main drive device, reversal device, right and left side frame and bottom plate.
1. Upper rollers device:
Upper device composed of main cylinder, upper bearing base, upper roller, double central adjust bearing.
Upper roller material: 42CrMo;
Hardness: HB 240-280;
Surface: IF quenching HRC45-50.

2. Lower rollers and level movement device:
Lower roller device composed of lower rollers, lower roller bearing base, lower input gear, and lower roller sliding bearing.
Main drive supplies the main power through output gear, down roller input gear, opening drive torque to lower rollers.
Lower roller material: 45#;
Hardness: HB240-280;
Surface: IF quenching HRC45-50.

3. Level movement device:
Level movement device composed of level movement motor, worm wheel worm pole box; worm wheel worm pole.
Level movement device is driven by motor. Through worm wheel worm pole box, screw pole can move in horizontal and bending in symmetry.

4. Support device:
Composed of screw pole device, leaning device and support rollers;
The support device can be adjusted upward or downward according to different coil plate speciation.
Support roller material: 45#;

5. Main drive device:
It's composed of main motor, belt, gear reducer box, electricity and hydraulic drive device.

6. Reversal devices:
It's composed of sliding pillow and reversal cylinder.

7. Balance devices:
It's composed of balance press block and screw.

Hydraulic System of Rolling Machine, W11s :
It's composed of gear pump, valve group, and pipes. The system is composed by pressure adjusting circuit, synchrony circuit and speed circuit.
The pressure adjusting circuit adjusts the working pressure through the overflow valve;
The max. pressure is 19.5Mpa;
The synchrony circuit separates roughly the hydraulic oil to the ascending and descending of the upper roller through the by-pass valve;
The restrictor valve adjust the upper roller ascending and descending;
The displacement transducer detect the displacement; the synchronization precision is ±0.15 mm;
The speed circuit control the dumping and resetting of the reverse device through adjusting the restricting speed by restrictor valve.

Electricity System of Rolling Machine, W11s :
(1) General summary
Electric control system consists of controlling table, hand button box.
Motivate power of the metal machining machine is three-phase four lines 380V/50Hz.
PLC programming control system is adopted;
The Rolling Machine's working status can be controlled through the control box;
Touching screen display and operation: so the plate or metal bending machine is easy to operate and all parameters are clearly displayed.
(2) Protections
All motors have equipped with breakers and heat relays to protect against short circuit or overload etc.
Corresponding limit location switch are equipped as terminal protection for the horizontal moving of the upper roller, ascending and descending of the supporting roller.
Upper and lower limit switch are set respectively for the reverse of the reversal crock and reposition.
The main power switch has shunt release, and both the working table and the bracket have "emergent stop" button.

All Kinds of Interlock of the Plate & Metal Bending Machine:
(1) After the reversal frame completely repositioned, all the actions can proceed (take the "reversal frame reposition" limit location switch as the examination);
(2) When the upper roller is on the upper location, the horizontal moving of upper roller and the independent descending of reversal side cannot proceed ("upper roller up position" limit location switch as examination);
(3) When the working pressure of the upper roller pressure relay is over 1/3P, the upper roller and the support roller cannot move. (Pressure relay as examination)

Failure Directions of the Metal Machining Machine:
(1) When the lower roller motor, horizontal moving motor and support roller motor is over-load, the failure direction light gives direction.
(2) When there is wrong with the PLC, the failure direction light gives direction.

Technical Features of the Rolling Machine:
Drum-type upper roller, the lower part of the lower roller and the support roller are in coordinate with the adjustment as well as the products' line degree with high precision.
(1) Drum-type upper roller is adopted, and the pre-settled amount of the drum-type is generally 70% of the average load of the rollers.
(2) The lower roller with smaller diameter is supported by support roller which can be adjusted up and down.
(3) According to the load of the roll-bending goods, adjust the support roller beneath the lower roller, which greatly improve the line degree of the products.

Backside Bending Function of the Rolling Machine:
This metal machining machine adopts backside bending (the direction of material delivery and the upper roller moving is opposite): once the upper roller presses down, the lower rollers circumgyrate and the machine will continue to bend.
The ends of the plate are directly pre-bending, which avoid the back angle caused by front bending and it also can control the width and the shape of the rest ends.

Applications of Hydraulic Rolling Machine, W11Y :
This metal machining machine suitable to make the steel plate into barrel shape, circular shape and conical shape, etc.

Descriptions of Hydraulic Rolling Machine, W11Y :
(1) The upper roller of the metal machine can move vertically or horizontally;
(2) The plate or metal bending machine can finish the pre-bending work and coiling work;
(3) Drum-type upper roller: so the plate bending machine has the anti-deformation function.
(4) The lower rollers are fixed symmetrically and mechanical drive is employed for driving lower rollers.
(5) The ascending and descending of upper roller and the dumping and resetting of the reverse head unit are hydraulic driven.
(6) PLC control of upper roller movement and LCD display of displacement;
(7) The metal machining machine can be operated at any position around it.

We are an ISO9002 and CE proved hydraulic rolling machine manufacturer. Rolling machines supplied by us are good in quality and reasonable in price. They are highly proved by global customers in many countries, such as Southeast Asia, Middle East, Western Europe, Eastern Europe, Northern Africa, South Africa, and Latin America. Besides, we also provide hydraulic press brake, CNC hydraulic press brake and hydraulic shearing machine. Welcome you to contact us!

Descriptions of Hydraulic Press Brake, WE67K :
The hydraulic press machine is equipped with two cylinders to control the strokes;
Y1-Y2-X axis CNC control;
Overloading protect system for hydraulic system;
The metal machining machine adopted Bosch-Rexroth full-closed loop electric-hydraulic synchronous system, so the machine tool's safety and reliable operation is guaranteed;
Light encoder is equipped in the hydraulic press machine to avoid deflection bending;
Standard punch;
Auto mechanical crowing device;
The metal machining machine is equipped with foot pedal(with emergency stop function);
Language choice on CNC control system.

Features of Hydraulic Press Brake, WE67K :
The machining machine adopted electric-hydraulic synchronized technology (BOSCH-REXROTH full loop servo control);

Working Principle of Hydraulic Press Brake, WE67K :
1. The positioning signal of the upper beam are detected by the light encoders and feed back to the CNC system;
2. Then the CNC system will check the opening size of the synchronizing valves, calculating and adjusting the inlet oil amount to control the synchronization of the two cylinders (Y1, Y2), so as to keep the working table and the upper beam parallel.
3. There is a sensor inside the mechanical crowing device, it will detect the bending situation and feedback it to the CNC system; the CNC system will calculating and control the amount of the crowning compensation of the crowing device automatically.

Components of Hydraulic Press Brake, WE67K :

Auto crowning device under the lower tool

Details inside the crowning device

Sensor inside crowing device, it will detect the bending situation and feedback it to the CNC system.

BOSCH-REXROTH hydraulic system (<300 T)

BOSCH-REXROTH hydraulic system (300T-500 T)

BOSCH-REXROTH hydraulic system, full-closed loop electric-hydraulic synchronous system

Punch tool clamping

Mechanical wedge clamping (optional)

Mechanical fast clamping (optional)

Combined lower tool, the width of the V can be adjusted through the bending thickness and width, especially for the thickness over 20mm.

Back gauge system
Back gauge system for bending force < 500 tons (X axis: CNC control; Z axis: manual)

Heavy duty back gauge system
Heavy duty back gauge system for bending force ≥500 tons (X axis: CNC control; Z axis: manual)

Axis back gauge (optional)

Structure Schematic Diagram:

Descriptions of Hydraulic Press Brake, WH67K :
Two cylinders control the strokes;
Torsion bar synchronized system;
Y-X NC control;
DELEM DA-41 NC Controller;
Standard punch and die;
Mechanical anti-crowing device is adopted in the metal machining machine.
Foot pedal with emergency stop function is equipped, so the safety operation of the hydraulic press machine is further guaranteed.

Some Components of Hydraulic Press Brake, WH67K :

DA-41 Controller
The DA-41 control provides a complete solution for conventional press brake applications for 2 axes.
The axes control supports servo control and 2-speed AC control etc.
The machine tool is equipped with LCD display, so a clear and easy control is offered.
The numerical programming, with angle and tool parameters, can be done in a clear table overview.

Main Technical Specifications of the Components of the Metal Machining Machine:
LCD display: 4.7" monochrome
Memory capacity: 100 programs
TTL encoder interface
Flexible I/O configuration

Descriptions of Hydraulic Press Brake, WE67Y WE67Y:
Steel welded structure, vibrating treatment of the hydraulic press machine can effectively remove the inter stress;
Two cylinders are adopted to control the beam's vertical moving in the hydraulic press machine;
High rigidity mechanical torsion shaft is equipped in the metal machining machine, so the beam synchronization can be guaranteed;
Build-in mechanical scotch in the Hydraulic Press Brake, WE67Y can effectively guarantee the precise positioning of beam;
Integration hydraulic system is adopted;
The back gauge position can be digital-showed;
Concise control on Y axis; digital-display of the beam adjustment;
Mechanical crowing device is equipped in the machine tool;
Standard punching tools and multi- V lower tool are also available;
Foot pedal with emergency stop function are provided in the Hydraulic Press Brake, WE67Y .

Some Components of Hydraulic Press Brake, WE67Y WE67Y:

Integration Hydraulic System
This metal machining machine adopts the integration hydraulic system to improve the operation reliability.

Front Sheet Support

Back Gauge (optional)

Crowning Device
Slope block crowing device under the lower tool, it can be adjusted by adjusting the screws to improve the bending accuracy

Multi-V lower tool
Multi – V clamping, it's convenient for adjusting the bending thickness and shape.

Structure Schematic Diagram:

Descriptions of Hydraulic Shearing Machine, QC11K:
The plate shearing machine adopts three-point rollers guide
The metal machining machine is equipped with Bosch-Rexroth hydraulic system
Shearing angle, blade clearance, back gauge and stroke CNC control (optional)
Back gauge driven by servo motor, ball screw and linear guide
DELME DAC-310 or DAC-360 control system is adopted in the machine tool.

Bosch-Rexroth Hydraulic System

Ball Screw and Linear Guide
Back gauge driven by servo motor, ball screw and linear guide

Descriptions of Hydraulic Press Brake, WE67K :
The hydraulic press machine is equipped with two cylinders to control the strokes;
Y1-Y2-X axis CNC control;
Overloading protect system for hydraulic system;
The metal machining machine adopted Bosch-Rexroth full-closed loop electric-hydraulic synchronous system, so the machine tool's safety and reliable operation is guaranteed;
Light encoder is equipped in the hydraulic press machine to avoid deflection bending;
Standard punch;
Auto mechanical crowing device;
The metal machining machine is equipped with foot pedal(with emergency stop function);
Language choice on CNC control system.

Features of Hydraulic Press Brake, WE67K :
The machining machine adopted electric-hydraulic synchronized technology (BOSCH-REXROTH full loop servo control);

Working Principle of Hydraulic Press Brake, WE67K :
1. The positioning signal of the upper beam are detected by the light encoders and feed back to the CNC system;
2. Then the CNC system will check the opening size of the synchronizing valves, calculating and adjusting the inlet oil amount to control the synchronization of the two cylinders (Y1, Y2), so as to keep the working table and the upper beam parallel.
3. There is a sensor inside the mechanical crowing device, it will detect the bending situation and feedback it to the CNC system; the CNC system will calculating and control the amount of the crowning compensation of the crowing device automatically.

Components of Hydraulic Press Brake, WE67K :

Auto crowning device under the lower tool

Details inside the crowning device

Sensor inside crowing device, it will detect the bending situation and feedback it to the CNC system.

BOSCH-REXROTH hydraulic system (<300 T)

BOSCH-REXROTH hydraulic system (300T-500 T)

BOSCH-REXROTH hydraulic system, full-closed loop electric-hydraulic synchronous system

Punch tool clamping

Mechanical wedge clamping (optional)

Mechanical fast clamping (optional)

Combined lower tool, the width of the V can be adjusted through the bending thickness and width, especially for the thickness over 20mm.

Back gauge system
Back gauge system for bending force < 500 tons (X axis: CNC control; Z axis: manual)

Heavy duty back gauge system
Heavy duty back gauge system for bending force ≥500 tons (X axis: CNC control; Z axis: manual)

Axis back gauge (optional)

Structure Schematic Diagram:

Descriptions of Hydraulic Press Brake, WH67K :
Two cylinders control the strokes;
Torsion bar synchronized system;
Y-X NC control;
DELEM DA-41 NC Controller;
Standard punch and die;
Mechanical anti-crowing device is adopted in the metal machining machine.
Foot pedal with emergency stop function is equipped, so the safety operation of the hydraulic press machine is further guaranteed.

Some Components of Hydraulic Press Brake, WH67K :

DA-41 Controller
The DA-41 control provides a complete solution for conventional press brake applications for 2 axes.
The axes control supports servo control and 2-speed AC control etc.
The machine tool is equipped with LCD display, so a clear and easy control is offered.
The numerical programming, with angle and tool parameters, can be done in a clear table overview.

Main Technical Specifications of the Components of the Metal Machining Machine:
LCD display: 4.7" monochrome
Memory capacity: 100 programs
TTL encoder interface
Flexible I/O configuration