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SC WSK 170Ton 4000mm CNC Press Brake For Sale

SC WSK 170Ton 4000mm CNC Press Brake is a large-scale hydraulic CNC bending machine suitable for medium-to-thick sheet metal. Equipped with an EL15T CNC control system, it supports 4+1 axis control (Y1, Y2, X, R + V axis compensation), enabling high-precision, multi-step bending. It is widely used in sheet metal processing, steel structures, transportation equipment, construction machinery, and enclosure manufacturing industries.

1. Key Technical Parameters of WSK 170Ton 4000mm CNC Press Brake (Reference)

Nominal Pressure: 1700 kN (170 tons)
Bending Length: 4000 mm
Distance Between Columns: Approx. 3200–3500 mm
Throat Depth: 400 mm
Ram Stroke: 200–300 mm (adjustable)
Opening Height: 480–600 mm
Number of Control Axes: 4+1 axes (Y1, Y2, X, R + V)
System Configuration: EL15T CNC Control System
Position Feedback: Encoder + CNC System Closed-Loop Control

2. Structure and Features

- Frame Structure

WSK 170Ton 4000mm CNC press brake machine frame is made of a welded steel structure, heat-treated to relieve internal stress, ensuring high strength and rigidity.
The hydraulic cylinder’s inner wall is precision-machined, and imported seals are used to prevent oil leakage.

- Hydraulic System

Dual hydraulic cylinders with electro-hydraulic servo control ensure precise synchronization of the ram movement.
Built-in hydraulic overload protection for safety and reliability.

- NC Control System (EL15T)

Color touchscreen with Chinese/English user interface.
Automatic programming, bend angle compensation, and workpiece unfolding calculation.
Supports storage of multiple-step bending programs.

- Back gauge System

High-precision ball screw and linear guide rail drive.
NC control for X and R axes, ensuring high positioning accuracy.

- Compensation Device

Equipped with hydraulic or mechanical deflection compensation to ensure consistent bending accuracy for long plates.

- Safety Features

Photoelectric protection (front safety light curtain).
Electrical interlock and emergency stop button.

3. Scope of Application

Bending of medium-to-thick plates
Steel components, metal sheet parts for electrical and mechanical equipment, and parts for construction machinery
Straight-line bending of long-length parts

4. SC WSK CNC Press Brake Machine Operating Instructions

1) Pre-operation Check

Check the hydraulic oil level and ensure the oil is clean.
Check that the power supply wiring is correct and the emergency stop button is reset.
Check that the die is securely installed and the gap between the die blades is properly adjusted.

2) Starting the Machine

Turn on the power → Start the hydraulic pump.
Power on the CNC system → Access the operating interface.
Select a program or input workpiece parameters (angle, bending length, plate thickness).
The system automatically calculates the back gauge position and slide stroke.
Press the foot pedal to start bending.

3) Bending Precautions

Do not attempt to bend excessively thick or long materials.
Avoid uneven loading when bending from one side only.
If the workpiece is too long for a single bend, it is recommended to have two operators or use a support system.

4) Shutting Down WSK 170Ton 4000mm CNC Press Brake Machine

Stop the slide at its lowest position.
Turn off the hydraulic pump → Turn off the power.
Clean the worktable and keep it tidy.

5. Maintenance and Service Guide

1) Daily Maintenance

Hydraulic System:

Hydraulic oil replacement interval: Replace after 2000 hours of initial operation, then every 4000-6000 hours.
Regularly check oil level and temperature; keep the system clean and free from leaks.

Electrical System:

Regularly check for loose wiring connections.
Keep the control cabinet clean and dry.
Do not arbitrarily change system parameters.

Mechanical Parts:

Check that the slider moves smoothly at the beginning of each shift.
Regularly lubricate the guide rails and lead screws.
Regularly calibrate the rear stop position accuracy.

Upper And Lower Die:

Check for cracks or chips before use.
Apply rust-preventive oil when not in use for extended periods.
Do not use with excessively thick sheets or exceeding the rated tonnage.

Safety:

Do not insert hands into the dangerous area ofthe die during operation.
Safety guards and photoelectric protection must be functional when operating CNC press brake
Keep the area around the equipment clear.

2) Regular Maintenance

Hydraulic Oil: Replace after 2000 hours of initial use, then every 4000–6000 hours.
Oil Filter: Clean or replace every 3 months.
Guide Rail/Ball Screw Lubrication: Lubricate weekly.
Electrical System: Check wiring for looseness and clean the electrical cabinet of dust monthly.

3) Common Faults and Troubleshooting

Slider out of sync → Check the electro-hydraulic servo valve or encoder.
High oil temperature → Check the cooling system and hydraulic oil for contamination.
Inaccurate backgauge positioning → Check ball screw, guide rail lubrication, and motor encoder.

The WSK 170Ton 4000mm CNC Press Brake EL15T 4+1 Axis is a high-precision machine suitable for bending large, medium-to-thick plates. The EL15T system enables multi-step programming and efficient processing, and with proper maintenance, it can significantly improve production efficiency and bending quality.