WC67Y 100T/2500 Hydraulic Press Brake, metal sheet/mild steel/stainless steel/aluminium bending machine

1.  All parts of the machine use CAD/CAE/CAM software to design so as to ensure the strength and rigidity of each part.

2. This machine is hydraulic upper driven.

3. The machine is mainly comprised of machine frame, working table, ram, and main oil cylinder. The perfect design and manufacturing technology can ensure the manufacturing and using precision of machine. The technological procedures of main parts are as follows (please see Fig.1, 2, 3 separately for the structure stress design analysis of uprights, working table, ram)

4. Steel plate to warehouse → physical and chemical inspection → steel plate ball blasting (dustproof) processing → cutting through CNC flame cutting machine → cutting and processing to each welding junction plate → compound welding → air protection welding → vibration aging treatment → processing through heavy-duty floor type boring and milling machine, heavy-duty gantry milling machine → fabrication.

5. The machine is the frame type structure, whose the installing faying surfaces of oil cylinders, lead rails, working table are processed at one time work holding through the technological procedures of heavy duty floor type boring and milling machine so as to ensure the parallelism and perpendicularity for each installing faying surfaces.

6. The lead rails of machine users the advanced self-lubrication material which does not need the regular lubrication and care.

7. The moving and positioning of left, right oil cylinder are controlled by CNC system (Y1, Y2), which is composed by the electrical hydraulic proportional valves, optical scales, CNC system. Each axis can be programmed individually, and can be worked under programming so as to get the higher moving and positioning precision when pressing the work piece. Please see the Fig.4.

8. The machine can work normally under the eccentric loading state because of using the electrical-hydraulic proportional synchronization which can enhance the anti-torque, anti-eccentric-loading capacity extremely. The deformation of working table and ram is very little when pressing because of the higher designing rigidity of working table, uprights, cross-beam and ram. So, the work piece can get the perfect alignment and same pressing angle

9.  Back gauge driven by digital AC servo motor, moved with long-stroke ball screw, linear guide way guiding

10. The machine has the front and rear supporting frame, on which has the roller so as to feed conveniently.

11. The machine has the side out-feeding mechanism so as to effect the out-feeding conveniently.
12. CNC system is the suspended operating station which can swing freely within the operating area, which also have the free movable foot/manual buttons.

13. Hydraulic System

Y1, Y2 axes use the electrical-hydraulic proportional servo valve technique. Hydraulic system is made in Rexroth, Germany. 

The oil pump: internal gear pump, Rexroth

The dynamic seal rings for main oil cylinder is made in VALQUA, Japan, which have the perfect sealing effect and long life
The oil level can be displayed clearly by the oil level meter set on oil tank, which has the oil filter mechanism and blocking alarm function.
Extra loading overflow protecting function on hydraulic system.

14. Hydraulic compensation on crowning of worktable and deformation compensation of throat, ensuring good bending strength and precision.

Control Technology

The synchronization of press brake adopt the technology of full loop electro hydraulic servo control, the positioning signal of the upper beam are feed back by raster (light-ruler) to CNC system and CNC system will check the opening size of synchronization valves, adjusting the inlet oil amount, to realize the synchronizing movements of the upper beam (Y1, Y2), and keep the worktable are always parallel situation. Following the situation of sheet metal to be bended, CNC system control automatically the amount of the crowning compensation of worktable to realize that angle being bended of work piece can keep same along the full work piece length.

Crowning Compensation

Crowning compensation system on worktable can make a work piece having a same precision full along the length of the work piece. A crowning compensation system is composed of a group cylinders in line in worktable, which can from a relative movements of worktable, forming a curve needed of adding conversion to worktable, to ensure unchanged the relative position to the upper beam of worktable after the worktable being under pressure. The crowning compensation amount is automatically calculated out by CNC system according to the worktable’s situation.

Typical aspect of sheet metal after bended.

With hydraulic compensation system                  With mechanical compensation system                           No compensation system

Back Gauge

Upper tool clamping

All tools are full grinded and with hardening. Material: 42CrMo. Hardness: HRC42

Front Sheet—Support & Safety Guard

CNC System Delem DA65W

1. Operation Manual(hydraulic diagram,electro diagram)

2. Foundation Drawings

3. Quality Certification

4. Packing list/Invoice

5. Original Certificates(If Custmer Required)

6. Original Bill Of Lading

Accessories

1. Front arm supports

2. Anchor bolts

3. Nuts

4. Washer

5. Oil gun

6. Foot pedal

7. Sealings

1. Our guarantee time is 2 years from B/L date.  If any component is damaged during guarantee time, we can send the component to the customer by DHL, TNT freely.

2. Our factory can send our engineer to the customer’s factory install, commission and training freely. The customer provide the double trip tickets, food and accommodation for our engineer. The customer also can send the engineer to our factory to learn the operation and maintains freely.

3. Our factory provide the service for the customer forever, if the customer need operation help, can contact us by MSN, Skype, Email and Telephone at any time, we provide 24 hours on-line service.

Our Contact Information:

S-k-y-p-e:  jackyhe864