Double servo CNC bending machine

NT Series

  • High-precision synchronization
  • Energy saving and consumption reduction
  • Low temperature and low noise
  • 200 tons – 1800 tons
  • 3.2 m – 18 m

Complete Heavy-Duty Frame Machining in One Setup on a Five-Face Machining Center

Frame Welding
Frame Annealing
Frame Sandblasting
Precision Machining on a Five-Face Machining Center
Frame Painting
Premium Frame

Frame Welding

Higher Tonnage, Stricter Precision Checks: Full CMM Inspection

The cylinder mounting planes on the press brake frame are key datums for left/right cylinder synchronization and consistent bending angles. A high-precision portable CMM samples multiple points on the Y1 and Y2 cylinder contact surfaces, controlling flatness to 0.001mm. This eliminates planar deviations caused by machining stress and ensures gap-free cylinder assembly, maintaining stable bending angles over long service, reducing sway and angle drift, and extending precision service life.

Y1 Measurement Points

Y1 Measurement Points

Y2 Measurement Points

Y2 Measurement Points

Y1/Y2 Flatness Measurement Accuracy

Y1/Y2 Flatness Measurement Accuracy

Y1/Y2-to-Table Perpendicularity Measurement Accuracy

Y1/Y2-to-Table Perpendicularity Measurement Accuracy

Press Brake Worktable Measurement Points

Press Brake Worktable Measurement Points

Y1/Y2 Measurement Points

Y1/Y2 Measurement Points

Perpendicularity between the cylinder mounting surfaces and worktable is a key geometric datum. The Y1 and Y2 mounting datums are measured separately against the table to strictly control right-angle deviation. Errors can cause diagonal bending errors, sheet movement and unequal angles along different edges. Strict perpendicularity control keeps cylinder force normal to the table and balanced on both sides, eliminates inherent geometric errors, and maintains diagonal accuracy and angle stability over long use.

Dual-Servo Coordination Balances Heavy Loads and Low Energy Use

Optimal 40℃ Temperature Control for High-Tonnage Equipment
Independent, Precise Pressure and Flow Control
Independent Dual-Servo Closed-Loop Drives: Separate Left/Right Control for Synchronized Wide-Span Bending

Optimal 40℃ Temperature Control for High-Tonnage Equipment

An efficiently cooled, constant-temperature hydraulic system precisely controls oil temperature around 40℃. During prolonged heavy-load operation of high-tonnage dual-servo press brakes, it suppresses heat buildup, reduces oil degradation and seal aging, eliminates pressure drift, stabilizes bending repeatability, reduces maintenance frequency and extends hydraulic system service life.

Next-Generation 21.5-Inch High-End CNC System

Remote Diagnostics
2D Drawing and Bending Simulation
ERP/MES Work Order Communication Integration

Remote Diagnostics

Supports remote parameter verification, process setup assistance and firmware upgrades. Most software and parameter faults can be resolved online, reducing waits for on-site visits and downtime losses, with fast after-sales support for batch production.

More Precise, Safer Bending

Backgauge System

7Axes

Multi-Axis Following Backgauge for Complex, Irregular Workpieces
Laterally Adjustable Backgauge Fingers for Safety and Convenience

Designed for High-Tonnage, Heavy-Duty Operation

The support structure combines rigidity and resistance to off-center loads, remaining stable during thick-plate bending with less drift and vibration. Precision drive screws ensure accurate, smooth backgauge positioning, maintaining dimensional accuracy and consistent forming during sustained heavy-duty work and supporting reliable long-term operation of high-tonnage equipment.

Item-by-Item Measurement for Strict Machine Assembly Accuracy

Dual-Rail Load-Bearing Backgauge Structure
In-House Developed Transmission Components
Precision Parts Machined on Over 20 In-House CNC Machining Centers

Dual-Rail Load-Bearing Backgauge Structure

Two guide rails share the moving backgauge load, replacing conventional single-rail, single-point loading. High-rigidity steel rails strengthen the structure and resist beam sag and drift over long travel and under heavy loads. High-speed reciprocating positioning stays smooth with less vibration.

European Safety Standard Design with Full Sheet-Metal Enclosure

The exterior follows European and American safety design principles, with protection concepts led by a European design team. Its solid, refined appearance suits high-end manufacturing workshops, combining safety and visual appeal.

Performance Upgrades for Operator Safety and Machining Accuracy

Premium CNC press brake options include laser safety protection and laser precision devices. They protect the bending area and correct bending accuracy in real time. Compatible with multiple CNC press brake series, they are ideal for upgrading sheet metal equipment.

Improves operating convenience and workpiece positioning accuracy. Scans hazardous areas in real time without physically obstructed blind spots.

Improves operating convenience and workpiece positioning accuracy. Scans hazardous areas in real time without physically obstructed blind spots.

Improves operating convenience and workpiece positioning accuracy. Scans hazardous areas in real time without physically obstructed blind spots.

Single-Point Laser Protection (Optional)
Robot Integration

The entire process from sheet cutting and precision milling to finished parts is controlled in-house. Each part’s tolerances, flatness and assembly fit are internally checked. This avoids positioning errors from inconsistent outsourced components, ensures backgauge repeatability over long-term batch bending, and reduces future wear and loosening risks.

Large Cable Trays
Large Internal Sheet-Metal Frames for Metro and High-Speed Rail Cars
Integrated Energy Storage Cabinets
Renewable Energy Photovoltaic Mounts
Offshore Platform Equipment Enclosures

Large Cable Trays

Select by Specifications

For more model specifications, configuration options or equipment quotations, contact our technical sales team. We will recommend a suitable equipment solution based on your workpiece and process requirements.

Get ConfigurationGH-2232DSGH-2242DS
Nominal Force220 Ton220 Ton
Worktable Length3200 mm4200 mm
Distance Between Uprights2750 mm3400mm
Ram Stroke200mm200 mm
Opening Height460 mm460 mm
Throat Depth400 mm400 mm
Number of CNC Axes7-Axis Y. Y2. X. R. V. Z1. Z27-Axis Y. Y2. X. R. V. Z1. Z2
Main Servo Motor Power7.5*2Kw7.5*2Kw
Hydraulic Oil Capacity80*2L80*2L
Machine Weight≈11000 Kg≈12600Kg

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