Views: 0 Author: Site Editor Publish Time: 2026-11-09 Origin: Site
Sector: Heavy Machinery & Agricultural Equipment Manufacturing
Machinery Category: 4-Axis CNC Pipe Bending System with Push Bending Capability
Equipment Designation: Wonsten 50CNC4A2S
Target Application: Complex High-Pressure Hydraulic Tubing Circuits
An established manufacturer of heavy agricultural equipment based in Russia—operating continuously since 1991—has implemented the Wonsten 50CNC4A2S multi-axis CNC pipe bending machine into its central prototyping and manufacturing facility.
The machine acquisition was driven by an active internal R&D project focused on launching new high-capacity farming equipment. The 50CNC4A2S machine was selected specifically to replace multi-piece assembled pipe fittings and flexible rubber lines with fully automated, single-piece rigid hydraulic tubing.
The hydraulic systems powering heavy agricultural machinery operate under extreme dynamic pressure spikes (often exceeding 300 bar) and severe mechanical strain. Manufacturing high-performance rigid tubing for these systems presents distinct mechanical challenges:
Multi-Plane Spatial Routing:
To navigate around chassis frames, engine housings, and mechanical actuators, hydraulic pipes require multi-angle 3D spatial geometry. Manual or semi-automatic bending leads to angular drift and spatial deviation, making alignment during chassis assembly difficult.
Integration of Mixed Radius Requirements:
Hydraulic line layouts often combine sharp direction changes (small center-line radius, CLR) with long sweeping structural curves (large CLR). Traditional bending setups require separate tooling operations or two distinct machine tools, increasing tool change overhead and dimensional cumulative error.
Material Elasticity & Springback Variations:
Thick-walled seamless carbon and stainless steel tubes exhibit significant springback after deformation. Controlling springback manually per batch leads to high scrap rates during prototype development.
The 50CNC4A2S pipe bender integrates four fully synchronized electric servo axes with a two-tier (dual-stack) bending head. The machine handles seamless metal tubing up to 50 mm outer diameter (OD).
+-----------------------------------------------------------------------------------+
| 50CNC4A2S SERVO CONTROL ARCHITECTURE |
+-----------------------------------------------------------------------------------+
| Y-Axis (Tube Feeding) --> High-Torque AC Servo Motor & Precision Rack/Pion |
| B-Axis (Spatial Rotation) --> High-Precision Planetary Gear Reducer |
| C-Axis (Bending Head) --> Direct Hydraulic/Servo Drive with Encoder Feedback|
| X-Axis (Shift Motion) --> Vertical/Horizontal Tooling Stack Switching |
+-----------------------------------------------------------------------------------+
Dual-Stack Tooling with Integrated Push Bending:
The top tier executes standard rotary draw bending for tight radii ($CLR \le 2D$). The lower tier is configured with a continuous push-bending (roll bending) module driven by the Y-axis servo feeder. This dual-structure allows sharp elbow bends and sweeping large-radius arcs to be formed on a single tube without unclamping.
4-Axis Servo Synchronization:
The synchronized motion of the Y, B, C, and X axes guarantees precise positional accuracy. The B-axis (tube rotation) maintains spatial angle accuracy within $\pm 0.1^\circ$, while the Y-axis (feeding) ensures bend location repeatability within $\pm 0.1\text{ mm}$.
Controlled Material Flow & Ovality Management:
Equipped with an automatic internal mandrel lubricator and an active hydraulic pressure die booster. The booster pushes the outer radius material during the bend sequence, keeping wall thinning under 10% and preventing cross-sectional ovality from compromising hydraulic fluid flow dynamics.
Industrial CNC Interface & 3D CAD Processing:
The CNC machine controller directly imports 3D solid CAD models (STEP/IGES formats). The internal software automatically extracts XYZ coordinates, converts them into YBC machine code, calculates material elongation, and executes dynamic 3D collision simulations before physical production.
Since initial commissioning at the client's facility in Russia, the 50CNC4A2S pipe bending system has demonstrated significant performance improvements in production efficiency and prototyping speed:
Performance Metric | Traditional Multi-Setup Process | Wonsten 50CNC4A2S Automated Process | Improvement |
Cycle Time per Line | ~12–15 minutes (multiple operations) | < 3.5 minutes (single setup) | ~75% Reduction |
Bending Repeatability | $\pm 0.5^\circ$ to $\pm 1.0^\circ$ | $\pm 0.1^\circ$ | 5x Precision Improvement |
Fitting & Leak Risk | High (Multiple threaded adapters) | Low (Single continuous bent tube) | Enhanced System Reliability |
R&D Prototype Turnaround | 2–3 Days per geometry revision | < 2 Hours (CAD import to execution) | Rapid Prototyping |
The adoption of the Wonsten 50CNC4A2S 4-axis CNC pipe bending machine highlights the trend toward automated, highly flexible tube processing in heavy equipment manufacturing. By uniting rotary draw bending and push bending in a single servo-driven machine, agricultural equipment OEMs can streamline R&D cycles, reduce component count, and ensure long-term hydraulic system durability in demanding operational environments.
For full technical specifications and machine configurations:
Visit www.cncmech.com to consult with our mechanical application engineering team.
