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Roll Threading Machine Roller
High-quality TMT Bar Thread Rolling Rollers designed for precise and durable threading of TMT bars. Ensures strong threads, smooth finish, high efficiency, and reliable performance for construction and rebar coupler applications. View Complete Details...
₹ 5500/Set
Product Specification
The TMT Bar Thread Rolling Roller is a specialized tool designed specifically for creating precise and durable threads on TMT (Thermo Mechanically Treated) bars used in construction and reinforcement applications. This process is different from traditional machining methods such as cutting, grinding, or chasing because it does not remove metal from the workpiece. Instead, it forms threads by displacing and shaping the material under high pressure.
In the TMT bar thread rolling process, specially designed hardened steel rollers are pressed against the surface of a rotating TMT bar. These rollers contain the mirror image of the required thread profile. As pressure is applied, the ductile metal of the TMT bar flows and fills the die pattern, forming strong, accurate, and uniform threads that are ideal for mechanical rebar coupler systems.
| Name | Rebar Dia | OD (mm) | ID (mm) | Height (mm) | Thread Pitch (mm) | Thread Angle |
|---|---|---|---|---|---|---|
| Thread Roller | ||||||
| 16mm-22mm | 79 | 30 | 45 | 2.0/2.5 | 60°/75° | |
| 25mm-32mm | 71 | 30 | 45 | 2.5/3.0 | 60°/75° | |
| 36mm-40mm | 62.5 | 30 | 45 | 3.0/3.5 | 60°/75° |
Key Advantages of TMT Bar Thread Rolling
1. Increased Strength
The rolling process compresses the metal grains rather than cutting them, which improves the grain structure of the threaded portion. This results in stronger and more durable threads compared to cut threads.
2. No Material Removal
Unlike conventional threading methods, thread rolling does not remove metal from the TMT bar. This helps maintain the bar’s original strength and reduces material waste.
3. Improved Surface Finish
Thread rolling produces smooth and uniform threads with excellent surface quality, ensuring better engagement with rebar couplers.
4. Enhanced Fatigue Resistance
Because the metal fibers are compressed and aligned during rolling, the threaded portion gains better fatigue resistance, making it suitable for heavy structural loads.
5. High Production Efficiency
Thread rolling is a fast and consistent process, making it highly suitable for large-scale construction projects where threaded TMT bars are required.
Applications
TMT Bar Thread Rolling Rollers are specifically used for threading TMT bars in construction and infrastructure projects, including
• Rebar mechanical coupler systems
• High-rise building construction
• Bridges and flyovers
• Metro and infrastructure projects
• Industrial and structural reinforcement
TMT Bar Thread Rolling Rollers are engineered to deliver high precision, strength, and durability in threaded rebars. By forming threads without cutting the material, the process preserves the structural integrity of the TMT bar while ensuring reliable and secure connections in reinforced concrete structures.
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