ZC28-6.3 thread rolling machine
ZC28-6.3 thread rolling machine
Automatic thread rolling machines are mainly employed for radial cold roll forming. This cold rolling process represents an advanced non-chip processing technology. The process utilizes rolling tools for extrusion, ensuring continuous metal fibers. The pressure generated during rolling effectively improves surface roughness, hardness, and strength of the workpiece. Compared with cutting processes, thread rolling improves work efficiency by several times or even more, while also saving material and facilitating automated processing.
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1.Introduction for ZC28-6.3 thread rolling machine:
Thread rolling machines are primarily used for rolling various types of precision external threads, high-strength standard parts, anchor bolts, T-screws, and other workpieces with larger thread pitches.
Automatic thread rolling machines are mainly employed for radial cold roll forming. This cold rolling process represents an advanced non-chip processing technology. The process utilizes rolling tools for extrusion, ensuring continuous metal fibers. The pressure generated during rolling effectively improves surface roughness, hardness, and strength of the workpiece. Compared with cutting processes, thread rolling improves work efficiency by several times or even more, while also saving material and facilitating automated processing.
Thread rolling machines use rolling dies as the rolling tool, featuring exceptional strength. They are suitable for rolling workpieces with a material hardness not exceeding HRC37—preferably HRC25 or below—with elongation greater than 10% and tensile strength less than 100 Kgf/mm². They can process various carbon steels, alloy steels, and non-ferrous metals. However, as material hardness increases, the service life of the rolling tools decreases significantly.
2.Technical parameter for ZC28-6.3 thread rolling machine
3.Characters for ZC28-6.3 thread rolling machine:
3.1 High Efficiency and Energy Saving
The cold rolling process produces no chips, resulting in high material utilization and low energy consumption.
3.2 Enhanced Component Performance
The radial compressive stress and cold work hardening effect generated during processing significantly improve the fatigue strength, torsional strength, and wear resistance of the finished component.
3.3 High Precision and Consistency
The thread profile is full and complete, with excellent diameter consistency. Surface roughness can reach Ry 0.1–0.8 μm, achieving a precision level of GB197-63 Grade 2.
3.4 Wide Applicability
Capable of processing workpieces with diameters ranging from Φ4.2 to Φ120 mm (model-dependent), with a pitch range typically of 0.3–8.0 mm. Suitable for materials including carbon steel, alloy steel, and non-ferrous metals (elongation > 10%, tensile strength < 1000 N/mm²).
3.5 Multi-Mode Operation
Supports three working modes: manual, semi-automatic, and automatic. Some models are equipped with PLC control, human-machine interface, automatic feeding, and other advanced functions.
3.6 Strong Structural Rigidity
Most models feature cast steel bodies or high-strength welded structures to ensure processing stability and durability.
3.7 Environmental Safety
No open flames are involved, and no cutting fluid contamination occurs (water-soluble coolant is used). The equipment fully complies with national construction industry safety standards.
4.Application for ZC28-6.3 thread rolling machine:
products faq
Thread rolling is a cold forming process that displaces material to form threads without removing any metal. This results in stronger threads with superior surface finish. Thread cutting is a subtractive process that removes material using a cutting tool, producing weaker threads due to interrupted grain flow and leaving cutting marks. Rolling also offers higher production speeds and no material waste.
The machine can produce a wide variety of thread profiles, including:
Standard threads – metric (M), UNC, UNF, BSW, BSF
Tapered threads – NPT, BSPT, API (oil and gas)
Special profiles – knurls, splines, worms, lead screws
Custom profiles – tailored to specific application requirements
The specific profile depends on the die set used.
The machine processes a broad range of ductile materials, including:
Carbon steel and alloy steel
Stainless steel (300 and 400 series)
Aluminum and aluminum alloys
Brass, copper, and titanium
High-strength materials (e.g., Grade 12.9 bolts)
Harder or more brittle materials may not be suitable for rolling due to limited deformation capacity.
Infeed (Plunge-Feed) – Dies close radially onto the workpiece with no axial movement. The process is fast and suitable for threads up to moderate length. Ideal for large diameter threads and high-volume production.
Throughfeed – The workpiece feeds axially between rotating dies, allowing for unlimited thread length. Best for long threaded rods, studs, and continuous production runs.
Routine maintenance includes:
Inspecting rolling dies for wear or damage; rotating or replacing as needed
Lubricating bearings, guideways, and moving parts regularly
Checking hydraulic fluid levels and seals (on hydraulic models)
Verifying electrical connections and control system calibration
Cleaning the machine to remove chips, coolant residue, and debris
Performing regular alignment checks to ensure consistent thread quality
We provide detailed maintenance schedules, spare parts support, and technical assistance to keep your machine in optimal condition.