Case

Brazil CNC Press Brake For Sale WSK 300T 4000mm 6+1 Axis

SC Brazil CNC Press Brake WSK 300Ton 4000mm ordered by a Brazilian customer has been completed at the Shenchong factory. The machine is about to be shipped to the customer’s factory.

SC WSK-300T×4000mm 6+1 axis CNC press brake machine is a large-scale metal plate bending machine designed for medium-thick plates, high-precision, and multi-process machining needs. This model adopts single-servo pump-controlled servo + electro-hydraulic synchronous control technology, using a high-performance CNC system to precisely control the Y1, Y2, X, R, Z1, Z2, and V-compensation axes, achieving one-time forming of complex workpieces.

The 300-ton bending pressure combined with the 4000mm effective bending length makes it particularly suitable for:

Steel structure manufacturing
Power cabinet industry
Elevator manufacturing industry
Construction machinery industry
Building curtain wall industry
Rail transit industry
New energy equipment manufacturing
Shipbuilding and pressure vessel manufacturing

Compared to traditional electro-hydraulic synchronous bending machines, the single-servo CNC bending machine offers higher synchronization accuracy, faster response speed, and better energy efficiency.

1. Brazil CNC Press Brake For Sale Main Technical Parameters (Reference)

Parameter Table of Brazil CNC Press Brake Machine:

Item	Parameters
Nominal pressure	300 Ton（3000KN）
Bending length	4000 mm
Column spacing	3200 mm
Throat depth	400-500 mm
Slider stroke	250-300 mm
Opening height	500-600 mm
Main motor power	22-30 KW
Back gauge stroke	600-800 mm
Number of control axes	6+1 axis
System configuration	EL15T / ESA / SC EL
Positioning accuracy	±0.01 mm
Repeatability	±0.05mm
Machine weight	18-20ton

2. 6+1 Axis Configuration Analysis

Standard 6+1 Axis Composition:

Y1 Axis: Controls the left hydraulic cylinder.

Y2 Axis: Controls the right hydraulic cylinder.

X Axis: Controls the back gauge’s forward and backward movement.

Function:

Controls the bending dimension
Automatically positions the workpiece.

R Axis: Controls the up and down movement of the stop beam.

Function:

Accommodates workpieces of different heights
Improves the efficiency of complex bending.

Z1 Axis: Left stop (lateral movement).

Z2 Axis: Right stop (lateral movement).

Function:

Automatically matches workpiece positioning hole positions
Supports eccentric bending
Supports multi-segment bending.

V Axis (+1 Axis): Table deflection compensation axis.

Function:

Automatically compensates for machine tool deformation
Ensuring consistent angles along the entire bending line.

The electro-hydraulic servo system achieves high synchronization accuracy through closed-loop control of Y1 and Y2, while the X, R, and Z axes achieve automatic back gauge positioning, and the V axis automatically compensates for machine body deflection.

3. Machine Main Structure Analysis

1) Integral Welded Frame

Material:

Q235B high-quality steel plate
Integral welding

Treatment:

Tempering treatment
Vibration aging treatment

Features:

Eliminates welding stress
Long-term non-deformation
Strong fatigue resistance

2) Single Servo Electro-hydraulic Synchronization System

Traditional Bending Machine:

Torsion shaft synchronization

WSK Series:

Single servo pump control
Dual grating ruler feedback

Form:

Full closed-loop control

Advantages:

Fast response speed
High synchronization accuracy
Better angle consistency
Repeatability can reach ±0.01mm level

3) High-Precision Backgauge System

Configuration: Servo Motor, Precision Ball Screw, Linear Guide
Features: Smooth Operation, Precise Positioning, Long Service Life
Suitable for: Small Workpieces, Mass Production Parts

4. CNC System Advantages

Depending on the configuration, it can be equipped with: EL15T, EL19T, EL21T, ESA S630, ESA S640, DA53T, DA58T, DA66T, DA69T

Main Functions:

Automatic Programming

Input: Material, Plate Thickness, Length, Bending Angle

System Automatic Calculation: Bending Sequence, Unfolded Dimensions, Backgauge Position, Die Management

Supports: Upper Die Database, Lower Die Database

Quickly Recall Process Parameters

Graphical Programming

Supports: 2D Graphics, 3D Graphics (High-End Systems)

Reduces Trial Bending Times

Automatic Compensation

Based on: Plate Thickness, Material Strength, Machine Tool Deformation

Automatically Corrects Bending Angle

5. 300ton 4000mm Bending Equipment Core Advantages

Advantage 1: Strong Heavy-Duty Processing Capacity

Suitable for:

6~16mm carbon steel
4~12mm stainless steel
8~20mm aluminum plates

Capable of processing large structural components.

Advantage 2: One-time forming of 4000mm long workpieces

Avoids:

Segmented splicing
Welding deformation
Improves product quality

Advantage 3: Strong Processing Capacity for Complex Workpieces

6+1 axis configuration supports:

Box-shaped parts
U-shaped parts
Door frame parts
Electrical cabinet parts
Steel structure connectors

Completes multiple bending processes in one operation.

Advantage 4: High Angle Consistency

With V-axis compensation: Significantly reduces angle errors at both ends of long workpieces.

Angle accuracy can reach ±0.5° or even higher.

Advantage 5: Energy Saving and Consumption Reduction

Compared to traditional hydraulic bending machines, the servo hydraulic system:

Energy saving 30%-60%
Lower heat generation
Lower noise

Especially suitable for long-term continuous production.

6. Applicable Industry Analysis

- Steel Structure Industry

Processing: H-beam connecting plates, box-type column accessories, support components

- Power Industry

Processing: High and low voltage switchgear, distribution boxes, control cabinets

- Elevator Industry

Processing: Door panels, car structural components

- Construction Machinery Industry

Processing: Excavator body panels, crane structural components

- New Energy Industry

Processing: Energy storage cabinets, photovoltaic brackets, charging pile housings

- Rail Transit Industry

Processing: Carriage structural components, electrical enclosures

7. Comparison between 6+1 axis press brake and a conventional 4+1 axis

Comparison table:

Item	4+1 axis	6+1 axis
Y1+Y2	√	√
X-axis	√	√
R-axis	√	√
Z1/Z2 axis	×	√
V-compensation	√	√
Automatic positioning capability	Average	Strong
Complex part machining	Average	Excellent
Batch production efficiency	High	Higher
Degree of automation	High	Very High

8. Overall Evaluation

SC Brazil CNC Press Brake WSK 300T 4000mm 6+1 axis bending machine is a mainstream mid-to-high-end model in the current sheet metal processing field.

Its core features can be summarized as follows:

- High Precision

Electro-hydraulic servo closed-loop control maintains stable bending accuracy over a long period.

- High Efficiency

6+1 axis automatic positioning significantly reduces manual adjustment time.

- High Load Capacity

300 tons of pressure meets the processing needs of medium-thick plates and large workpieces.

- High Intelligence

Supports automatic programming, mold library management, and graphical operation.

- High Cost-Effectiveness

Compared to 8+1 axis CNC press brake, the investment is more reasonable. It can also meet the production needs of most steel structure, electrical cabinet, and machinery manufacturing companies.

For sheet metal companies with large annual processing volumes, complex product specifications, and the need for long-term stable production, the WSK-300T×4000mm 6+1 axis CNC press brake machine is an ideal machine that balances precision, efficiency, and return on investment.

Wuxi Shenchong has been in the South American market for over ten years, with customers in Brazil, Peru, Mexico, Argentina, Chile and other countries. SC press brake bending machines, shearing machines, plate rolling machines, and sheet metal automated equipment are exported worldwide.