Heavy Duty Pipe Bending Machine — DW130NC & DW168NC
Single-head hydraulic system; microcomputer control; 8-10 ton heavy-duty capacity; 22kW hydraulic power; maximum penetration length 5000mm.
Does Your Factory Need a True Heavy-Duty Pipe Bender?
When processing large-diameter, thick-walled pipes of Φ130mm, Φ168mm, and 10–14mm wall thickness, ordinary pipe benders often fail to meet requirements in terms of loading capacity, clamping force, and structural rigidity.
If your products are used in marine piping, construction machinery, steel structures, or heavy equipment, every loading, positioning, and bending operation must be flawless. Otherwise, scrapping a single pipe fitting weighing tens or even hundreds of kilograms could result in losses of thousands of yuan.
Zhuoran DW130NC and DW168NC heavy-duty pipe benders, with their larger tonnage, stronger power, and more robust structure, are designed specifically for your large-diameter, thick-walled pipe and high-load production needs.
Core Parameters of Two Heavy Duty Pipe Bending Machines
| Parameter | DW130NC | DW168NC |
|---|---|---|
| Max Bending Diameter × Wall Thickness | Φ130mm × 10mm | Φ168mm × 14mm |
| Max Bending Radius | R520mm | R650mm |
| Min Bending Radius | R≥1.5D | R≥1.5D |
| Max Bending Angle | 190° | 190° |
| Standard Mandrel Length | 4500mm | 5000mm |
| Control System | Microcomputer Control | Microcomputer Control |
| Max Number of Bends Per Pipe | 16 bends per piece | 16 bends per piece |
| Storable Part Programs | 256 sets (16×16) | 256 sets (16×16) |
| Hydraulic Motor Power | 22kW | 22kW |
| Max System Pressure | 14MPa | 16MPa |
| Fuel Tank Capacity | 400L | 650L |
| Machine Dimensions | 6500×1750×1450mm | 7100×1850×1550mm |
| Machine Weight | 8 Tons | 10 Tons |
DW130NC Heavy-Duty Pipe Bender Introduction
Applications: Structural pipes for engineering machinery, marine piping, steel trusses, large agricultural machinery booms, heavy vehicle chassis
Why is this Heavy Duty Pipe Bending Machine worth its price?
If you primarily process structural pipes for engineering machinery, marine piping, steel trusses, large agricultural machinery booms, or heavy vehicle chassis, the DW130NC can meet your needs for large diameter pipes, high loads, and continuous production.
A 22kW hydraulic motor with a 14MPa system pressure provides ample power for Φ130mm × 10mm thick-walled pipes, reducing incomplete bending, rework, and pipe scrap.
A large 400L oil tank helps control oil temperature during continuous operation, ensuring stable operation even during extended production periods. The 4500mm standard mandrel structure can process pipes up to approximately 4.5 meters long, and mandrel support reduces wrinkling, flattening, and cross-sectional deformation, improving finished product quality and yield.
The equipment can store 256 sets of processing programs and is equipped with a touch screen and graphical user interface. When changing to different product specifications, you can quickly recall existing parameters, shortening the setup time and reducing reliance on highly skilled programmers. This neutral pipe bending machine not only provides stronger pipe bending capabilities but also lower scrap costs, more stable production cycles, and more ample capacity margin.
DW168NC — The Ceiling of Excellence's Product Line
DW168NC heavy-duty pipe bender offers bending capabilities up to Φ168mm × 14mm. The machine supports a bending radius of R650mm, a mandrel length of 5000mm, and a maximum bend angle of 190°, making it suitable for large, heavy, and complex thick-walled pipes.
This semi-automatic pipe bending machine can bend DW168NC heavy-duty pipe bender utilizes higher system pressure to enhance its ability to process thick-walled pipes. A larger oil tank facilitates temperature control during continuous production, while its increased weight and structural rigidity help reduce vibration, accuracy drift, and pipe deformation. The value it brings extends beyond simply bending larger pipes; it also includes more consistent finished product quality, lower scrap risk, and greater future capacity margin.
Based on project experience, if your commonly used pipe diameter exceeds Φ130mm, or if future products may be upgraded to Φ150-Φ168mm, it is not recommended to use a smaller model for long-term full-load processing. Directly choosing the DW168NC is usually more beneficial for controlling equipment wear and tear and reducing the cost of repurchase.
However, this is a large piece of equipment, approximately 7.1 meters long and weighing about 10 tons. Before purchasing, the factory floor load-bearing capacity, floor height, and power supply conditions should be verified according to the foundation drawings, and approximately 1.5 meters of operating and maintenance space should be reserved on both sides of the machine.
Guidelines for Buying Heavy-Duty Pipe Benders
The DW50NC semi-automatic pipe bending machine is our most consistently shipped model.
Site Estimation
DW130NC weighs approximately 8 tons, requiring a recommended workshop area of at least 6.5m × 4m; the DW168NC weighs approximately 10 tons, requiring a recommended workshop area of at least 7.1m × 4.5m.
In addition to calculating the equipment price, you should also assess the foundation’s load-bearing capacity and renovation costs for ground reinforcement.
Pipe Loading
A 6-meter-long Φ168mm × 14mm steel pipe can weigh close to 350 kg. Manual loading is inefficient and poses safety risks.
It is recommended to use a small jib crane, cantilever crane, or electric roller conveyor loading rack, which can reduce operator workload and improve loading and positioning efficiency.
Control System Matching
The DW130NC and DW168NC can store 256 programs, with each program supporting up to 16 bends. If your product only has 3-5 bends, the program capacity may not be fully utilized for the time being.
However, for complex workpieces such as marine pipelines and steel structure trusses, this control system can significantly reduce the time spent on repeated machine adjustments and improve the production efficiency of multiple products.
How to Choose Dies and Mandrels for Heavy-Duty Pipe Bending Machines?
Die Material Selection Based on Pipe Material
If you are processing Φ130mm × 10mm carbon steel structural pipes, it is recommended to choose wear-resistant and impact-resistant 42CrMo dies to reduce deformation caused by long-term heavy-load processing. For thick-walled stainless steel pipes, Cr12 dies with higher hardness can be selected to reduce die wear and surface scratches on the pipe.
For alloy pipes, titanium alloys, and other high-strength materials, it is recommended to use quenched Cr12 dies. For ordinary carbon steel pipes, 45# steel dies with a high cost-performance ratio are suitable.
Mandrel Selection Based on Bending Radius
Most Φ130-Φ168mm pipes can use standard single-ball mandrels, which are simple in structure and easy to maintain.
When your bending radius is close to R1.5D, or when the pipe has high requirements for roundness and inner quality.
It is recommended to use multi-ball mandrels to reduce inner wrinkling, outer thinning, and cross-sectional flattening.
Mandrel Lubrication Cannot Be Ignored
During the processing of heavy-duty thick-walled pipes, the mandrel bears greater pressure and friction.
We recommend using molybdenum disulfide (MoS₂) based grease, as it offers better high-pressure stability and reduces wear between the mandrel and the inner wall of the tubing. Based on our experience, mold selection should not be based solely on initial price.
It should be tailored to the tubing material, bending radius, and production volume. This approach is more conducive to extending mold life and ensuring consistent finished product quality.
Get Your Custom Machine Quotation Now
Submit pipe and plant parameters to obtain an evaluation plan.