For modern sheet metal fabrication shops, balancing ultimate precision, operational speed, and low power consumption is crucial. When working with precision enclosures, electronic chassis, and custom architectural trims, standard mechanical torsion-bar machines often fall short on repeatability. That is where the 70T 2500mm Electro-Hydraulic CNC Press Brake Machine excels.
Combining full hydraulic-servo axis synchronization (Y1+Y2), advanced CNC control powered by the Delem DA-53T touch-screen system, high-speed multi-axis backgauge positioning, and integrated safety light curtains, the ZTM 70-Ton 2.5-Meter press brake is an indispensable asset for high-accuracy metal bending.
1. Overview of the 70T 2500mm CNC Press Brake
The 70T 2500mm Hydraulic CNC Press Brake delivers a precise bending force of 70 Tons (700 kN) across a maximum working bed width of 2500 mm (8.2 feet). This sizing offers the ideal footprint for precision job shops processing thin-to-medium gauge sheets such as stainless steel, aluminum, and mild steel.
Key Advantage Highlights:
- Y1-Y2 Independent Synchronization: High-precision proportional valves and optical linear scales monitor both cylinders independently for perfect parallel alignment during stroke down.
- 2500mm Working Length: Easily processes standard 8ft sheet metals with full end-to-end angle accuracy.
- Delem DA-53T Controller: Advanced graphical touch-screen CNC control for quick sequence generation and program storage.
- Multi-Axis Servo Backgauge: High-speed servo motors drive X and R axes (and optional Z1/Z2 finger movement) with extreme positioning accuracy.
- Enhanced Safety Features: Front safety light curtains and side safety doors protect operators without compromising workflow speed.
2. Smart CNC Control: Delem DA-53T Touch Screen Unit
At the command center of this electro-hydraulic press brake is the world-renowned Delem DA-53T controller. Designed specifically for Y1-Y2 synchro press brakes, the DA-53T simplifies complex bending procedures into a quick, intuitive touch-screen process.
Key Features of Delem DA-53T:
- “Hot-Key” Touch Navigation: 10.1-inch high-resolution color TFT display featuring multi-touch screen operation.
- Automatic Angle & Depth Calculation: Input material type, sheet thickness, and target bending angle—the CNC automatically computes stroke depth (Y-axis) and backgauge distance (X-axis).
- Tool & Die Library: Store multiple punch and die profiles; the controller provides automated collision detection preview.
- USB & Network Connectivity: Easy program backup, offline programming data transfer, and fast diagnostic capability.
3. High-Speed Multi-Axis Backgauge & Mechanical Rigidity
Achieving tight tolerances on multi-bend workpieces requires an agile and precise backgauge system. The rear mechanism on the ZTM 70T 2500mm model is built with high-speed AC servo motors, precision ball screws, and heavy-duty linear guide rails.
Behind-the-Scenes Engineering:
- Servo Motor Precision: High-torque servo drives deliver rapid backgauge travel (X-axis) and vertical height adjustment (R-axis) with positioning accuracy within ±0.02mm.
- Flexible Stop Fingers: Multi-stage backgauge fingers mounted on linear rails allow easy lateral adjustment for asymmetrical bending.
- Rigid Monoblock Frame: Annealed steel frame eliminates internal stress, guaranteeing zero deformation under continuous 70-ton load.
- Quick Clamp Tooling: Upper punch quick-clamping mechanism allows tool replacement in seconds, dramatically cutting down changeover time.
4. Technical Specifications
The table below provides detailed parameters for the ZTM 70T / 2500mm Electro-Hydraulic CNC Press Brake:
| パラメータ | Specification |
|---|---|
| Nominal Bending Force | 700 kN (70 Ton) |
| Bending Length (Table Length) | 2500 mm (8.2 Feet) |
| Distance Between Uprights | 2000 mm |
| Throat Depth | 320 mm – 400 mm |
| Ram Stroke (Y-axis) | 150 mm – 200 mm |
| Max Open Height | 420 mm |
| CNC Control System | Delem DA-53T (Color Touch Screen) |
| Synchronized Axes | Y1 + Y2 Electro-Hydraulic Synchro |
| Backgauge Axes | X + R Axis (Servo Driven) |
| Main Motor Power | 7.5 kW |
| Machine Weight | Approx. 5,500 kg |
5. Industrial Applications
The compact footprint and high precision of the 70T 2500mm CNC Press Brake make it a versatile workhorse across numerous manufacturing sectors:
- Precision Electronics Enclosures: Bending intricate aluminum and stainless steel cases for servers and power supplies.
- Lighting Fixtures & Electrical Appliances: Rapid 90° and off-angle forming on light-gauge steel sheets.
- Medical & Commercial Equipment: Producing clean, blemish-free bends on stainless steel food processing and medical cabinets.
- Custom Sheet Metal Job Shops: Excellent choice for workshops handling high-mix, low-volume job orders requiring fast tooling setups.
6. Frequently Asked Questions (FAQ)
Q1: What sheet thickness can a 70T 2500mm press brake handle?
Answer: Over its full 2500mm length, a 70-ton press brake can comfortably bend up to 3mm mild carbon steel or 1.5mm–2mm stainless steel (using a standard V-die opening of $V=8 \times t$). For shorter sheets (e.g., 1000mm length), it can bend carbon steel up to 5mm–6mm thickness.
Q2: What is the difference between Electro-Hydraulic Synchro (Y1/Y2) and Torsion-Bar Press Brakes?
Answer: Torsion-bar machines use a mechanical shaft to force parallelism, which can twist under uneven loads. Electro-Hydraulic (Y1/Y2) machines use independent linear scales and proportional hydraulic valves for each cylinder, enabling precise off-center bending, higher repeating accuracy (±0.01mm), and automated angle control via CNC.
Q3: Why choose the Delem DA-53T controller?
Answer: The Delem DA-53T provides a compact yet extremely powerful touch-screen solution. It handles automatic angle calculation, crowning control, multi-bend step programming, and tool libraries, dramatically reducing setup times compared to basic two-axis controllers.—
Conclusion: Elevate Your Bending Precision Today
The 70T 2500mm Electro-Hydraulic CNC Press Brake Machine equipped with the Delem DA-53T controller delivers an outstanding combination of speed, repeating accuracy, operator safety, and energy efficiency. It is the perfect upgrade for metal fabricators seeking to boost productivity on precision sheet metal parts.
Interested in custom tooling, laser safety guards, or a technical consultation?
連絡先 ZTMマシン today to get a detailed specification sheet and an exclusive quotation for your production line!
