GH-1742PC
170-ton, 4200 mm PC Series CNC press brake with two 9 kW main servo motors, ECKERLE pump, Rexroth proportional valve and 7-axis (Y1, Y2, X, R, V, Z1, Z2) control.
- 170 Ton Max. working force
- 4200 mm Max. bending length
- 7-Axis NC axes
- 2 × 9 kW Main servo motors
Product description
The GH-1742PC is a CNC press brake from GHBM's PC Series. It has a working force of 170 tons and a maximum bending length of 4200 mm. Its seven NC axes are Y1, Y2, X, R, V, Z1 and Z2, which control ram movement, backgauge positioning and the worktable.
The machine has a 460 mm daylight opening, a 200 mm ram stroke and a 400 mm throat depth. The hydraulic system is driven by two 9 kW main servo motors, with an oil volume of 85 L × 2, and uses a German ECKERLE hydraulic pump and a Rexroth proportional valve. It is controlled by a GHBM-940T CNC controller with a 21.5-inch Techmation display. Other components include Techmation servo motors and drives, an OPKON closed-loop position sensor, SKF/NOK cylinder seals and an Amada-equivalent double-side quick-release clamp.
Features
170-Ton Working Force
Maximum working force of 170 tons for heavier-duty sheet metal bending.
4200 mm Bending Length
4.2-metre maximum bending length, with 3400 mm between columns, for long workpieces.
Fast Ram Cycle
220 mm/s approach, 20 mm/s working and 250 mm/s return speeds.
Dual Main Servo Motors
Two 9 kW Techmation main servo motors (9 kW × 2) drive the hydraulic system.
Dual Oil Volume
Hydraulic oil volume specified as 85 L × 2.
German Hydraulic Components
ECKERLE hydraulic pump and Rexroth proportional valve.
400 mm Throat Depth
Deeper throat for bending wider flanges and larger panels.
Seven-Axis CNC Configuration
Y1, Y2, X, R, V, Z1 and Z2 axes for multi-axis control.
GHBM-940T CNC Controller
Paired with a 21.5-inch Techmation display.
Closed-Loop Position Feedback
Uses an OPKON closed-loop position sensor.
Fast, Repeatable Backgauge
X-axis: 600 mm stroke, up to 350 mm/s. R-axis: 150 mm stroke, up to 150 mm/s. Repeatable positioning accuracy of ≤0.05 mm on both axes.
Quick-Release Tooling
Amada-equivalent double-side quick-release clamp.
Dust-Proof Compensation Worktable
Compensation worktable with dust protection, important for consistent angles over a 4.2 m bend.
Hydraulic Sealing and Fittings
SKF/NOK cylinder seal kit and EATON compression fittings.
Technical Specifications
| Specification | GH-1742PC |
|---|---|
| Series | PC Series |
| Max. Working Force | 170 Ton |
| Max. Bending Length | 4200 mm |
| Distance Between Columns | 3400 mm |
| Ram Stroke | 200 mm |
| Daylight Opening | 460 mm |
| Throat Depth | 400 mm |
| Number of NC Axes | 7-Axis |
| NC Axis Configuration | Y1, Y2, X, R, V, Z1, Z2 |
| Main Servo Motor Power | 9 kW × 2 |
| Oil Volume | 85 L × 2 |
| Ram Approaching Speed | 220 mm/s |
| Ram Working Speed | 20 mm/s |
| Ram Returning Speed | 250 mm/s |
| Backgauge X-Axis Stroke | 600 mm |
| Backgauge X-Axis Max. Running Speed | 350 mm/s |
| Backgauge X-Axis Repeatable Positioning Accuracy | ≤0.05 mm |
| Backgauge R-Axis Stroke | 150 mm |
| Backgauge R-Axis Max. Running Speed | 150 mm/s |
| Backgauge R-Axis Repeatable Positioning Accuracy | ≤0.05 mm |
| Machine Length | 4900 mm |
| Machine Width | 2050 mm |
| Machine Height | 2850 mm |
| Machine Weight | Approximately 12000 kg |
Configuration and Component Brands
| Component | Brand / Origin |
|---|---|
| Machine Frame | GHBM — China |
| Double-Side Quick-Release Clamp | Amada-equivalent model — China |
| Multi-Axis Control Backgauge System | GHBM — China |
| Hydraulic Pump | ECKERLE — Germany |
| Hydraulic Cylinder | GHBM — China |
| Dust-Proof Compensation Worktable | GHBM — China |
| GHBM-940T CNC Controller | GHBM — China |
| 21.5-Inch Display | Techmation — Taiwan |
| Main Servo Motor | Techmation — Taiwan |
| X, R-Axis Servo Motor | Techmation — Taiwan |
| X, R-Axis Servo Driver | Techmation — Taiwan |
| Proportional Valve | Rexroth — Germany |
| Cylinder Seal Kit | SKF / NOK — Sweden / Japan |
| Compression Fitting | EATON — USA |
| Foot Switch | KACON — Korea |
| Closed-Loop Position Sensor | OPKON — Turkey |
| Inductive Proximity Switch | OMRON — Japan |
| Low-Voltage Control Components | Schneider — France |
Maintenance & care
General recommendations for servo-hydraulic CNC press brakes. Follow the manufacturer's manual for model-specific requirements.
- Daily cleaning: Remove metal debris and dust from the full length of the worktable, tooling, clamps and backgauge area.
- Hydraulic oil checks: Check the oil level and condition in both 85 L oil volumes regularly. Replace oil and filters at the manufacturer's recommended intervals.
- Leak and seal inspection: Inspect the cylinders, pumps, proportional valve, hoses and fittings for leaks, and replace worn seals promptly.
- Motor checks: Watch both main servo motors for abnormal noise, heat or vibration, especially during high-speed production.
- Tooling inspection: Check punches, dies and quick-release clamps along the full bending length for wear, damage or incorrect seating. Confirm that the tooling is rated for the tonnage being applied.
- Lubrication: Lubricate backgauge guides, screws and other moving parts as specified by the manufacturer.
- Axis and backgauge checks: Watch for abnormal noise, vibration, positioning drift or unexpected movement.
- Electrical inspection: Check cables, connectors, switches and the control panel. Only qualified personnel should do electrical work.
- Safety checks: Before production, verify that the foot switch, emergency stops and safety devices work correctly. This matters especially at high ram speeds.
- Periodic servicing: Schedule manufacturer-recommended inspections and keep a log of maintenance and faults.