DW18CNC / DW38CNC / DW50CNC Elec Pipe Bending Machine
Precision servo control; 4-5 axis linkage; ±0.1° bending accuracy; multi-layer mold.
What are your concerns when choosing a pipe bending machine?
If you’re adding pipe bending equipment to your factory, your biggest fears are likely these:
– ❌ The machine you buy isn’t precise enough, resulting in misaligned pipe angles and assembly difficulties.
– ❌ Changing product models requires lengthy mold adjustments, raising the skill barrier for workers.
– ❌ The equipment is unstable, performing well one day and poorly the next, making it difficult to reduce the defect rate.
– ❌ You want to equip yourself with a machine for small-diameter pipes, but you’re afraid of wasting your budget on overkill equipment.
These aren't your problems; they're problems with choosing the wrong equipment.
Zhuoran Machinery has been deeply involved in pipe processing equipment for 16 years. Our fully automatic CNC pipe bending machine series—DW18CNC, DW38CNC, and DW50CNC—covers the needs from small-diameter precision pipes to medium-diameter mass production.
This article will clearly explain the differences between these three machines, their respective applications, and how to choose the right one.
Three Types Electric Pipe Bending Machine Key Parameters
| Specification | DW18CNC-4A-2S | DW38CNC-4A-2S | DW50CNC-5A-3S |
|---|---|---|---|
| Max Tube Diameter × Thickness | Φ18mm × 1.6mm | Φ38mm × 2mm | Φ50mm × 2mm |
| Control Axis | 4 Axis (Y+B+C+Die Change) | 4 Axis (Y+B+C+Die Change) | 5 Axis (Y+B+C+Die Change+Core Change) |
| Die Layers | 2 Layers | 2 Layers | 3 Layers |
| Max Bending Radius | R80mm | R200mm | R250mm |
| Max Feeding Length | 1200mm | 2700mm | 3200mm |
| Bending Speed | Max 200°/s | Max 150°/s | Max 80°/s |
| Feeding Speed | Max 1000mm/s | Max 1000mm/s | Max 1000mm/s |
| Bending Accuracy | ±0.1° | ±0.1° | ±0.1° |
| Bending Servo Motor | 750W | 1000W | 5kW |
| Feeding Servo Motor | 1.5kW | 5kW | 7kW |
| Hydraulic Motor | 4kW | 4kW | 5.5kW |
| Machine Weight | 800kg | 1500kg | 2200kg |
| Machine Size (L×W×H) | 2500×700×1300mm | 4100×850×1300mm | 5200×1300×1600mm |
| Program Storage | 200 Programs | 200 Programs | 500 Programs |
| Feeding Type | Straight Feeding / Clamp Feeding | Straight Feeding / Clamp Feeding | Straight Feeding / Clamp Feeding |
DW18CNC Electric Pipe Bending Machine – Core Features
The top choice for precision bending of small-diameter pipes, primarily used for medical bed frames, office chair frames, small fitness equipment parts, display racks, and lighting fixture fittings.
It focuses on high-precision machining of small-diameter pipes, employing 4-axis servo control (Y+B+C+mold change), achieving a bending accuracy of ±0.1°. Suitable for processing thin-walled pipes up to Φ18mm, it effectively reduces pipe deformation and improves product yield.
Utilizing a 2-layer mold structure, it allows for quick switching between different product programs and mold combinations, improving changeover efficiency. If your products primarily consist of small-diameter pipe fittings, such as in the furniture, medical, or display equipment industries, and you prioritize precision, stability, and minimal machine footprint, the DW18CNC is a cost-effective choice.
DW38CNC Electric Pipe Bending Machine Functions
The DW38CNC is the flagship model in Zhuoran’s CNC pipe bending machine series, with a maximum processing capacity of Φ38mm × 2mm, covering most furniture, automotive parts, and sports equipment tubing needs.
The machine adopts a 4-axis servo control + 2-layer mold design, equipped with a higher-power servo system, and a maximum feeding length of 2700mm, meeting the needs of long pipes and multi-angle continuous bending processing.
Compared to smaller machines, the DW38CNC has stronger continuous production capabilities while maintaining good space utilization, making it an ideal choice for automation upgrades in small and medium-sized factories.
If your product pipe diameters are mainly concentrated in Φ16-Φ38mm, and you need to balance accuracy, efficiency, and investment cost, the DW38CNC is the most balanced choice.
Features of DW50CNC Electric Pipe Bending Machine
DW50CNC adopts a 5-axis servo control + 3-layer mold structure, adding a mandrel changing function, enabling more complex continuous pipe bending processes. It is widely used in automotive exhaust pipes, fitness equipment main frames, and engineering machinery pipe fittings.
The maximum processing capacity reaches Φ50mm × 2mm, with a feeding length of 3200mm, suitable for the production of large-size, highly complex, and multi-process pipe fittings.
It also supports push bending processes, which can improve the problem of pipe wall thinning when bending thick-walled pipes and large-radius pipes, thus improving product quality.
If your order volume continues to grow and the product structure becomes increasingly complex, the DW50CNC’s 5-axis + 3-layer mold configuration can reduce later upgrade costs, making it a longer-term investment choice.
How to Choose the Right Electric Pipe Bending Machine?
| Your Requirement | Recommended Model | Reason |
|---|---|---|
| Small tube processing (≤Φ18mm), lightweight and precision products | DW18CNC | Low investment cost, fast return, ideal for precision small tube production |
| Medium tube size (Φ16-Φ38mm), various products | DW38CNC | Best cost performance, wide application range, the most popular model |
| Large tube size (Φ38-Φ50mm), complex bending or mass production | DW50CNC | Higher configuration, ready for higher production capacity and complex processing |
| You are a distributor and want to reduce inventory risk | DW38CNC → Add DW50CNC later | DW38CNC covers more applications and has higher customer acceptance |
| Only occasional special large tube requirements | DW38CNC + Customized Dies | Avoid upgrading the whole machine for a few special products and reduce investment costs |
How to Choose the Right Electric Pipe Bending Machine?
1. Guaranteed Precision
All three models use servo motor drives (Yaskawa/Mitsubishi, Japan), ensuring bending/feeding/rotation accuracy within ±0.1°, ±0.1°, and ±0.1mm respectively. Each machine undergoes a 48-hour load test before leaving the factory; machines that fail the test are not shipped.
2. Simple Operation
A 15-inch industrial touchscreen with graphical user interface guides operation, eliminating the need for programming knowledge for workers. Once parameters are set, the program can be backed up and saved for later use. Anyone in your factory who can use a mobile phone can operate this machine.
3. Problem-Free Operation
The control system features a collision detection function—automatically extinguishing the arc and stopping the machine when the mold and pipe are about to interfere. It also includes an automatic lubrication device and self-diagnosis of faults, making daily maintenance much easier than a hydraulic pipe bending machine requiring individual operators.
4. Uninterrupted Product Switching
Each model supports multiple program storage sets (200 sets each for DW18/DW38, and 500 sets for DW50). Combined with a multi-layer mold design, switching products and adjusting the program takes only 5 minutes. For orders with many varieties and small batches, this saves not only time but also the waste from repeated debugging.
Our Core Technology For Electric Pipe Bending Machines
Coordinate input (XYZ/YBC)
You give the drawing coordinates, the operator inputs them directly, and the system automatically converts them.
Touch screen + graphic guidance
No professional programming background is required, the interface is intuitive and you can get started quickly.
4/5 axis servo control
Pipe bending, feeding, pipe turning, and mold changing are all accurately executed by servo motors, without hydraulic drift problems.
±0.1° repeatable positioning accuracy
The angles of the first and ten thousandth bends are the same, so there is no need to adjust the machine frequently.
Japanese servo + Taiwan precision reducer
The core components are from first-line suppliers, stable and reliable, and easy to maintain.
Multi-layer mold (2-3 layers)
Multiple sets of molds are pre-installed. There is no need to disassemble and assemble the molds when changing products, just rotate them into place.
Collision detection + automatic arc extinguishing
Automatic interference detection during programming, real-time protection of molds and pipes during processing
Program storage backup
200-500 sets of programs can be called at any time, changing products is like flipping through a menu
Get Your Custom Machine Quotation Now
Whether your factory manufactures furniture, fitness equipment, auto parts, or motorcycle fittings, Zhuoran’s fully automatic electric pipe bending machine series can meet your needs.