We offer a comprehensive range of precision metal processing equipment, including straightening, cold drawing, pointing, chamfering, cutting, thread rolling machines, and drawing dies, tailored for tube, bar, and wire materials across diverse industries.
The Tube Inner Thread Forming Machine is designed for continuous forming of internal helical threads or grooves in metal tubes and coils. It is mainly used for copper, stainless steel, brass and aluminum tubes in flexible hose, corrugated tube, HVAC, refrigeration and precision tube production. The machine combines tube feeding, internal forming, controlled drawing and coil winding into one continuous operation, reducing repeated manual handling during production.
The Tube Inner Thread Forming Machine is arranged around continuous tube movement rather than individual tube processing. After the tube enters the feeding section, the forming system works on the inside surface while the traction unit keeps the tube moving at a controlled speed. The processed tube is then wound into a coil for collection or transfer to the next production stage.
The feeding system guides the tube into the forming section at a controlled rate. Proper alignment is important because tube deviation can affect forming depth, pitch consistency and the finished internal profile. The machine can be configured according to the tube diameter, material and production line arrangement.
Instead of removing material with conventional cutting tools, the forming system uses a forming tool to create the required internal helical profile through controlled deformation. This approach is suitable for continuous tube processing where consistent pitch and surface condition are required along the tube length.
The traction system controls tube movement through the forming section. Drawing force and working speed can be adjusted according to the material and tube specification. After forming, the finished tube is automatically wound into a coil, reducing manual rewinding and handling between production stages.
The correct machine should be selected from the actual tube and production requirements rather than from machine power alone. Tube outside diameter, material, wall thickness, required internal profile, forming pitch, production speed and finished coil diameter all affect the configuration.
Copper tubes are a common application, while stainless steel, brass and aluminum tubes can also be processed according to the required forming conditions. Different materials require different forming forces and working parameters, so the material should be confirmed before selecting the machine model.
The required pitch and internal profile determine the forming tool configuration. For projects involving different tube specifications, the forming system and related tooling can be matched to the required tube dimensions instead of using one fixed setup for every product.
Required output has a direct effect on machine selection. FR-8 is intended for smaller tube sizes and moderate line speeds, while FR-12 provides greater drawing force and a higher working-speed range. The required coil diameter should also be considered when planning the winding section.
| Model | Drawing Force | Tube Diameter | Drawing Speed | Coil Diameter | Main Motor | Variable Driver |
|---|---|---|---|---|---|---|
| FR-8 | 2 T | 5–10 mm | 15–30 m/min | 600–1000 mm | 15 kW | 18 kW |
| FR-12 | 5 T | 8–15 mm | 40–60 m/min | 800–1200 mm | 22 kW | 30 kW |
Custom configurations are available for different tube materials, dimensions, forming requirements and production layouts. Actual working parameters may vary according to the material and tube specification.
Internal tube forming becomes difficult to manage when production depends heavily on manual feeding, adjustment and rewinding. Variations in tube alignment can lead to inconsistent pitch, while unstable traction may affect the finished internal profile. Separate forming and rewinding operations also increase handling time and labor requirements.
The continuous configuration brings feeding, forming, traction and winding into the same production process. Operators can focus on parameter adjustment and quality inspection instead of repeatedly transferring individual tube sections between machines.
The Tube Inner Thread Forming Machine can be used for flexible stainless steel hose, gas hose, water supply hose, corrugated metal tube, plumbing components, HVAC piping, automotive flexible tubing, industrial fluid-transfer tubing and heat-exchanger tube production. For copper tube processing, the forming system can be configured for internal helical grooves used in air-conditioning and refrigeration heat-exchanger applications.
FangRong manufactures the machine through a controlled sequence covering engineering design, structural fabrication, machining, forming-tool production, assembly and testing. The frame and rotary table undergo cutting, welding, stress relief and CNC machining where required. Core components such as drawing dies, guide wheels and internal forming heads are machined and heat-treated according to their operating requirements.
After mechanical assembly, the electrical and drive systems are installed and the machine is calibrated before delivery. Surface treatment and final assembly are completed according to the equipment configuration. Testing focuses on machine operation, tube movement, forming performance and the coordination of the drive and control systems.
Each machine is checked before shipment to confirm that the mechanical structure, transmission system, forming components and electrical controls operate as required. For customized equipment, the inspection can be carried out against the agreed tube specifications and production requirements so that major configuration issues are identified before installation at the customer's plant.
Dongguan Fangrong Metallurgical Equipment Co., Ltd. was established in 1998 and has more than 26 years of experience in cold drawing, straightening and related metallurgical equipment. The company operates manufacturing facilities in Dongguan and Yangjiang, Guangdong, supporting equipment production and delivery capacity.
FangRong holds ISO 9001 certification and provides equipment with CE compliance and SGS inspection. Its technical portfolio includes 32 invention patents and more than 100 utility model patents. Examples include patent 2013207829011 for a chain tensioning device, patent 2008300532117 for a multi-strand die holder and ZL2015 2 0842922.7 for a quick-change mandrel system.
Before shipment, the machine is prepared according to its structure, transportation method and destination requirements. Components are protected against movement and handling damage during transportation, with packaging arranged for overseas delivery when required.
FangRong provides installation guidance, operator training and technical support after delivery. The standard warranty period is 12 months, excluding normal wear parts. Spare parts and long-term technical support are available for equipment operation and maintenance.
The machine can be configured for stainless steel, copper, brass, aluminum and other metal tubes. The suitable forming parameters depend on the material, tube dimensions and required internal profile.
FR-8 covers tube diameters from 5 to 10 mm, while FR-12 covers 8 to 15 mm. Custom configurations can be discussed when the required tube size falls outside these ranges.
FR-12 provides a higher drawing force and faster drawing-speed range than FR-8. FR-8 has a 2 T drawing force and 15–30 m/min drawing speed, while FR-12 provides 5 T and 40–60 m/min.
Yes. The machine is designed for continuous tube movement and can form an internal helical thread or groove along the required tube length without processing each tube section separately.
Yes. The equipment can be integrated with upstream or downstream tube-processing equipment. The required connection method depends on tube feeding, production speed, coil handling and the layout of the existing line.
Provide the tube material, outside diameter, wall thickness, required internal thread or groove profile, pitch, target production speed, finished coil diameter and expected production capacity. For line integration, the existing equipment layout is also useful.
Yes. Machine configuration, tooling and working parameters can be adjusted for specific tube materials, dimensions, forming requirements and production layouts. Final specifications should be confirmed according to the actual production conditions.
Yes. Installation guidance and operator training are available after delivery. Technical support and spare-parts service are also provided for long-term equipment operation.
The standard warranty is 12 months, excluding normal wear parts. Technical support and spare-parts service continue beyond the warranty period.
Address
NO.163,Shatong Road,Shabu 2nd Industrial Zone, Dalang Town, Dongguan City, Guangdong, China
