1. Performance Indicators
Bending Accuracy
Angle Accuracy: Within ±0.5° (High-precision models can reach ±0.1°).
Repeatability Positioning Accuracy: ±0.05mm (for the rear stop X-axis).
Influencing Factors: Mechanical rigidity, control system algorithm, mold quality.
Bending Speed
No-load Speed: 100~300mm/s (High-speed models can reach 500mm/s).
Bending Cycle: 3~10 seconds per cycle (related to stroke length and speed).
Nominal Pressure (Tonnage)
Range: 40~600 tons (selected based on material thickness and length).
Influencing Factors: Hydraulic system stability, cylinder diameter.
2. Mechanical Structure Performance
Machine Body Rigidity
Integral Cast Body: Strong resistance to deformation, suitable for high-tonnage models.
Welded Body: Lightweight design, suitable for medium and small tonnage models.
Slider Movement Accuracy
Synchronous Control: Dual cylinders + grating ruler (ensures parallel movement of the slider).
Deflection Compensation: Hydraulic or mechanical compensation, solves the problem of bulging in the middle of long workpieces.
Guide Rails and Bearings
Linear Guide Rails: High rigidity, low friction, suitable for high-speed and high-precision models.
Roller Bearings: Strong durability, suitable for heavy-duty conditions.
3. CNC System Performance
Control System Brand
High-end: Delem, Cybelec (Supports 3D simulation, multi-axis linkage).
Economical: Domestic systems (such as E21, suitable for simple processing).
Function Richness
Automatic calculation of bending parameters (such as springback compensation, unfolded length).
Supports multi-step programming (complex workpieces formed in one process).
Real-time monitoring (pressure, angle, speed, etc.).
Operational Convenience
Graphical interface: Intuitively displays the bending process.
Storage Capacity: Supports hundreds of processing programs.
4. Mold Performance
Mold Precision
Surface Hardness: HRC58~62 (Strong wear resistance).
Processing Error: ±0.02mm (for high-precision molds).
Mold Types
Upper Mold: Knife molds, bending knives, gooseneck molds, etc.
Lower Mold: Segmented molds, integral molds (selected based on workpiece length).
Mold Life
Carbon steel molds: Approximately 100,000 bending cycles.
Alloy molds: Approximately 500,000 bending cycles.
5. Additional Functions (Optional)
Laser Tool Setting
Real-time detection of mold wear, improving repeatability accuracy.
Automatic Mold Changing
Suitable for multi-variety, small-batch production (mold changing time reduced to 2 minutes).
Intelligent Safety Protection
Photoelectric protection: Prevents operator injury.
Overload protection: Avoids equipment damage.
6. Practical Application Performance
Processing Range
Minimum bending radius: 0.5T (T = plate thickness).
Maximum bending length: Usually 2.5~6m (customizable for extra-long models).
Applicable Materials
Carbon steel, stainless steel, aluminum, copper, etc.
Special Materials: Titanium alloy, composite materials (require higher tonnage and precision).
Production Efficiency
Single bending time: 3~10 seconds (related to stroke length and speed).
Batch production: 60~200 pieces per hour (depending on workpiece complexity).
7. Performance Testing Methods
Angle Accuracy Test
Bend 10 times and measure the angle deviation (should be ≤0.5°).
Repeatability Positioning Accuracy Test
Move the rear stop X-axis 10 times and measure the positioning error (should be ≤0.05mm).
Load Stability Test
Full tonnage bending 10 times and observe the slider synchronization and pressure fluctuation.
8. Performance Improvement Suggestions
Regular Maintenance
Check hydraulic oil, guide rail lubrication, and synchronous belt tightness.
Optimize Programming
Reasonably set the bending sequence and parameters to reduce idle travel.
Upgrade Molds
Choose high-hardness, high-precision molds to extend service life.
