The High-Precision Hydraulic Thread Rolling Machine forms external threads by pressing rolling dies against a cylindrical workpiece under controlled hydraulic force. The thread profile is formed through plastic deformation rather than conventional cutting.
It is suitable for threaded rods, studs, bolts, anchor components, shafts and other compatible cylindrical parts. Machine and tooling selection depends on material, starting diameter, finished thread diameter, pitch, thread length, thread profile and production volume.
Key Product Features
Controlled Hydraulic Forming
The hydraulic system provides the force required to press the rolling dies into the workpiece. Hydraulic pressure can be adjusted according to the forming requirement, helping match the process to different materials and thread specifications.
Stable Die and Spindle Structure
The die and spindle arrangement maintains the working relationship between the rolling dies and workpiece during forming. Stable positioning is important for consistent thread dimensions and profile.
Adjustable Rolling Conditions
Spindle speed, die position, hydraulic pressure and forming time can be adjusted according to the workpiece and tooling. This allows the machine to handle different compatible thread specifications.
Cold Thread Forming
The thread is formed through plastic deformation instead of chip removal. For suitable materials, this provides an efficient process for repetitive external-thread production.
Interchangeable Rolling Dies
Rolling dies are selected according to thread diameter, pitch, profile and rolling method. Different thread specifications normally require corresponding die sets.
Technical Specifications
The following specifications are based on a Z28-150-class configuration. Final values should be confirmed against the actual machine supplied.
|
Item |
Specification |
|
Model |
Z28-150 |
|
Machine Type |
Hydraulic thread rolling machine |
|
Forming Process |
Cold external thread rolling |
|
Rolling Diameter |
Φ4–48 mm |
|
Maximum Rolling Force |
165 kN |
|
Thread Pitch |
1–6 mm |
|
Maximum Die Width |
110 mm |
|
Rolling Die Diameter |
Φ120–170 mm |
|
Rolling Die Bore |
Φ54 mm |
|
Die-Spindle Center Distance |
120–240 mm |
|
Spindle Tilt Angle |
±5° |
|
Spindle Speed |
36 / 47 / 60 / 78 rpm |
|
Main Motor |
7.5 kW |
|
Hydraulic Motor |
2.2 kW |
|
Cooling Pump |
0.12 kW |
|
Thread Length |
According to workpiece and rolling method |
|
Feeding |
Manual or automatic configuration |
|
Machine Dimensions |
Approx. 1600 × 1500 × 1550 mm |
|
Machine Weight |
Approx. 1600 kg |
|
Certification |
CE / ISO according to supplied configuration |
Applications
Threaded Rods and Fasteners
For threaded rods, studs, bolts and other cylindrical fasteners requiring external threads.
Anchor and Construction Components
For compatible anchor bolts and construction-related threaded parts, subject to material and dimensional requirements.
Machinery Components
For shafts, studs, connectors and other cylindrical components requiring formed external threads.
Automotive and Industrial Hardware
For compatible threaded components used in mechanical manufacturing, automotive-related parts and general industrial hardware.
Technical Evaluation and Sample Testing
Machine selection should start with the actual workpiece rather than diameter alone.
For quotation, provide:
For non-standard threads, unusual geometry or demanding tolerances, a sample or detailed drawing can be reviewed before the machine and rolling dies are finalized.
Manufacturing and Quality
The factory has produced hydraulic thread rolling machines, diameter reducing machines and related automation equipment since 2003.
The facility covers approximately 5,000 m², including about 2,600 m² of factory space, with 36 employees, 2 senior engineers, 3 R&D personnel and 12 skilled technicians.
Production equipment includes milling machines, wire-cut machines, a vertical machining center, lathes, planers, boring and drilling machines, welding equipment and metal band saws.
Completed machines undergo operating tests before shipment. Depending on the configuration, verification can include hydraulic operation, spindle movement, electrical control and rolling performance.
Wholesale and Export Support
For wholesalers, importers and distributors, the machine can be supplied according to the confirmed application.
The quotation can include:
Machine configuration
Rolling dies
Spare parts
Electrical requirements
Technical documentation
Packaging
Automatic feeding options
The factory reports export experience across Europe, Asia, the Middle East, North America, South America and Africa.
Technical communication and installation support are available for overseas orders. The factory states that technical issues can be submitted online and aims to provide a solution within 24 hours.
FAQ
Q: How do I choose the correct machine model?
A: Provide the workpiece material, diameter, thread size, pitch, length, profile and production quantity. These details determine machine capacity and tooling requirements.
Q: Can one machine produce different thread sizes?
A: Yes, when the specifications are within the machine's working range. Different thread specifications normally require different rolling dies.
Q: Can my workpiece be tested before ordering?
A: For non-standard applications, a drawing or sample can be provided for technical evaluation before the machine configuration is finalized.
Q: What materials can be processed?
A: The machine is mainly used for suitable carbon steels and alloy steels. Selected non-ferrous materials may also be suitable, subject to technical evaluation.
Q: Can automatic feeding be added?
A: Yes, automatic feeding can be configured for suitable repetitive production. The system depends on workpiece dimensions and production requirements.
Q: What information is needed for a quotation?
A: Provide the drawing or sample, material grade, raw diameter, finished thread size, pitch, thread length, thread standard and estimated production quantity. Voltage and frequency are also required for export orders.
Request a Technical Evaluation
Send the workpiece drawing or sample, material specification, thread size, pitch, thread length and estimated production volume.
The suitable machine model, rolling dies and configuration can then be evaluated before quotation.
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