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How It works

Understanding the Hydraulic System and Working Principle

A CNC press brake bends sheet metal by applying controlled hydraulic force through matched punch and die tooling.The CNC system synchronizes ram movement, backgauge positioning, and bending pressure,and tooling precision to achieve accurate sheet metal bending results.

Main Components

♦  Hydraulic system

♦  Ram and frame

♦  CNC backgauge

♦  Press brake tooling

♦  Foot pedal control

 

Key Performance Factors

♦  Bending tonnage

♦  Tooling precision

♦  Material springback

♦  Hydraulic synchronization

 

Why Correct Tonnage Matters

T=V1.42×S2×L
​Incorrect tonnage selection for the metal press brakes may result in poor bend accuracy, tooling damage, or machine overload.

CNC & Servo Electric Press Brake Technology

Modern CNC press brake systems improve bending efficiency through automated programming, multi-axis synchronization, and precision backgauge control.

Compared with conventional hydraulic systems, servo electric press brakes provide:

♦  higher positioning accuracy

♦  faster cycle times

♦  lower energy consumption

♦  reduced maintenance requirements

 

Common Applications

♦  stainless steel fabrication

♦  electrical enclosures

♦  elevator panels

♦  precision sheet metal parts

Need assistance selecting the correct tonnage, tooling, or controller configuration? JSTMT engineering specialists can recommend suitable press brake solutions for your production requirements.

CNC Press Brake Machines Advantages

The CNC metal brakes suit complex working pieces and mass productions with high efficiency.

CNC press brake programable controls

±0.01mm high accuracy of Automation Position

0.5-20mm Sheet thick support, to 8m long.

10–20 bends/min production efficiency with fast setup

Light guards and emergency stops protection for operator safety

Standard Configuration

Controller- DELEM, CYBELEC, ESA

Rexroth Valve

Hoerbiger(Hawei) Hydraulic System

Fagor Optical Scale

Electricals-Schneider

Fast clamp for tool change

Delem LT Offline software

Automatic Crowning/Laser for option

CNC Press Brake tools or customized

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back guage (4)

Sevo Controlled Back Gauge

CNC backgauges are mechanical systems that move along one, two, or multiple axes to position a piece of metal.

Above 4 axes backague +AC Servo Motor

High-speed positioning system with repeatable accuracy.

crowning system (1)

Crowning System

The compensations for the deflection can help achieve perfect bending results with equal and consistent angles along the length of the bend.

Automatic compensation system for consistent bending angles.

Mechanical crowning uses goups of wedge blocks to compensate for the worktable.

DA66T CNC

Friendly CNC Bending Controller-Delem DA66T

The efficient Delem CNC press brake retrofit optimizes the bending cycle and working precision, reduces the setup time for work steps, and enhances the batch efficiency of the bending process. Learn More...

Advanced 3D cnc press brake programming system for high precision bending operations.

Sensor bending and correction interfacing profile

movable front support

Movable Front Arm

Adjustable front stops and movable support arms that can be adjusted in height

30 kgs per support

quick clamp cnc

Quick Clamp

It offers solutions for swift setup and changeover times and deflection mitigation.

Safe and fast tool change

Red Button for quick punch release

laser protection

What is the laser safety on a CNC press brake?

The safety light curtains of the Sentinel protection system include a DSP modified laser safety device installed on the upper beam of the press brakes.

Get Custom Press Brake Solution

Engineering Highlights

 

Feature Engineering Advantages
CNC Control Systems DELEM DA53T / DA66T / ESA controllers with multi-axis programming
Hydraulic Synchronization Stable bending accuracy with automatic crowning compensation
Servo Backgauge High-speed positioning with repeatable accuracy
Custom Tooling Multi-V dies and custom punch tooling for complex bending profiles
Global Technical Support Remote diagnostics and commissioning assistance

 

about us–jadestone-Equipment-capacity ✅ grinding ✅ machining ✅ testing ✅ assembly ✅ tooling ✅ controller wiring

 

 Applications

Power Cabinets

Industrial cabinet box

Pole Fabrication

Light Pole

Elevator Industry

Elevator

Technical Resources & Buying Guides

Optimizing your manufacturing process requires more than just high-quality hardware. To help your press brake operators achieve the best results with high precision, our engineering team has compiled these essential technical resources:

FAQ- Engineering Quick Answer

Tonnage depends on material type, thickness, and V-die opening. For example, bending 6mm mild steel with an 8t V-die typically requires approximately 50-60 tons per meter.

A Guide to Choosing the Right Press Brake Tonnage

Servo-electric models offer 30% higher energy efficiency and faster cycle times for thin materials, while hydraulic models are better suited for heavy-duty, high-tonnage applications.

Modern CNC press brakes can achieve repeatability up to ±0.01 mm depending on machine configuration, tooling quality, and material consistency.

Safe hydraulic press brake operation includes correct V-die selection, stroke testing, backgauge alignment verification, avoiding overload conditions, using safety guards, and proper pedal control. Read our full operation guide for detailed safety procedures.

6 Operation Rules for the Hydraulic Press Brake

NC press brakes are best for simple, repetitive bending with manual adjustments, while CNC press brakes are ideal for complex, multi-step parts requiring high precision and automatic angle calculation. CNC machines significantly reduce setup time for diverse batches. [Check our comparison guide].

NC vs CNC Press Brake Which Machine Suits Your Workshop Best

Programming a CNC press brake involves selecting material type, thickness, tooling, bend angle, and bending sequence through the CNC controller. Advanced systems automatically calculate bend allowances, compensate for springback, and optimize multi-step bending operations for higher precision and productivity.

How to program a cnc press brake

Catalogue

JSTMT catalogue

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