Yangli KBC Series:
The High-Volume Production Specialist
Mechanical Crowning. Hybrid Servo. 40% Energy Savings.
In the world of precision bending, consistency is the only metric that matters. The Yangli KBC Series is engineered for manufacturers who cannot afford a 0.5° variance between the first part and the thousandth part.
Unlike standard NC machines that rely on manual hydraulic adjustments, the KBC Series features precision pressure control governed by a CNC system and high-response proportional valves.
The KBC Series integrates a Mechanical Deflection Compensation System (Taper Wedge Crowning) directly into the worktable. Combined with a High-Dynamic Servo Drive, this architecture delivers the fastest approach speeds and the most consistent bend angles in our portfolio.
Why the KBC Series is the “Definitive Standard”
The Mechanical Crowning Advantage
The KBC Series utilizes a sophisticated system of precision-adjustable wedges integrated directly into the lower worktable. This creates a physically locked compensation curve that is meticulously calibrated to counteract the natural deflection of the beam under heavy loads.
The Result: Because this curve is defined by high-strength mechanical wedges rather than external variables, your bend angles remain perfectly uniform from the center to the ends of the sheet. This provides the level of stroke-to-stroke repeatability required to maintain tight tolerances during long, high-volume production runs—ensuring your first part and your thousandth part are identical.
40% Energy Savings (Hybrid Servo)
Efficiency is not optional. The KBC Series utilizes a Servo-Motorized Hydraulic Pump. Unlike traditional motors that run constantly, this servo system is “On-Demand”—it only consumes power during the bending cycle.
The Result: This translates to up to 40% energy savings compared to conventional machines, drastically lowering your cost per part.
Annealed for Eternity
The KBC Series is constructed with a heavy-duty steel-welded frame that undergoes a rigorous Stress Relieving (Annealing) process twice. By removing internal welding stresses through this double thermal treatment before the final machining, we ensure the frame never “relaxes” or warps over time.
The Result: The frames are finished on imported CNC floor boring machines, preserving absolute parallelism for decades—ensuring your machine remains as accurate in year fifteen as it was on day one.
Intelligent Positioning
In a high-speed production environment, your backgauge is the backbone of your accuracy. The KBC Series comes standard with a high-precision X and R axis backgauge system.
The Result: Coupled with four heavy-duty backgauge fingers, this setup provides the total functionality needed to handle complex parts and long sheets with ease. It removes the setup bottlenecks common in standard machines, giving your team the physical certainty to produce flawlessly at scale.
Under The Hood
Technical Deep Dive
What makes the KBC Series "High Speed"?
The Electro-Hydraulic Servo System allows for rapid acceleration and deceleration of the ram. Approach Speed: Up to 200 mm/s. Return Speed: Up to 200 mm/s. Cycle Time: Significantly reduced compared to standard hydraulic brakes, allowing for more parts per shift.
How does the synchronization work?
The machine uses Electro-Hydraulic Synchronization Proportional Valves. The CNC controller monitors the Y1 and Y2 cylinders independently using linear scales. If the ram tilts even a fraction of a millimeter, the servo valves instantly adjust oil flow to correct it, ensuring absolute parallelism.
Machine Specifications
Custom tonnage and length options available upon request.
| Feature | Specification |
|---|---|
| Model Range | 63 Tons to 250 Tons |
| Bending Length | 1500mm to 4200mm |
| Control Axes | 4+1 Axis (Y1, Y2, X, R + Crowning) |
| Controller | Yangli Intelligent CNC System |
| Backgauge | Multi-Axis Motorized Backgauge |
| Crowning Type | Mechanical Deflection Compensation |
| Max Open Height | 520mm (Standard across range) |
| Approach Speed | 160 - 200 mm/s |
High-Speed Production Output
The KBC Series is optimized for maximum throughput with its high-dynamic servo drive, delivering more parts per shift than conventional machines.
200
mm/sRapid Approach Speed
Fast ram descent to workpiece
10
mm/sControlled Pressing Speed
Precision bending under load
200
mm/sFast Return Speed
Quick ram retraction for next cycle
40%
savingsEnergy Efficiency
Hybrid Servo on-demand power
The electro-hydraulic servo synchronization system ensures these speeds are maintained with micron-level positional accuracy. The high-response proportional valves instantly correct any deviation, delivering significantly reduced cycle times and more parts per shift compared to standard hydraulic press brakes.
Frequently Asked Questions
01What controller does the KBC Series use?
02Can this machine handle complex hemming?
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