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Email: cncengineer@minnuo.com
Max. rolling O.D.: φ45mm，Max. rolling length: 60mm，Max. rolling pressure: 7 tons
The R7NC is a high-precision, in-feed type CNC thread rolling machine built for compact, stable, and high-output production environments. Engineered to handle rolling diameters up to φ45mm, the machine delivers a rolling pressure of 7 tons, enabling clean, burr-free threads in tough materials like alloy steel, stainless steel, and titanium.
R7NC Series
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Customized design
Why Choose Our CNC Solutions
Key Features
- ● In-feed type configuration for short, high-precision thread rolling
- ● Rolling diameter capability up to φ45mm and length up to 60mm
- ● 7-ton rolling pressure delivers strong, consistent threads
- ● Compatible with internal, external, and through-feed rolling techniques
- ● Compact footprint optimized for small batch or production line use
- ● Rigid frame structure minimizes vibration and improves surface finish
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Recommended Configurations
- ● Roll die set: Matched pairs for common thread sizes (e.g., M8, M10, UNF).
- ● Adjustable guide rail: Ensures workpiece alignment during rolling.
- ● Cooling and lubrication system: Reduces die wear and prevents heat deformation.
- ● Digital position sensor: Provides feedback for rolling depth control.
- ● Anti-burr edge finisher: Ensures clean entry and exit profiles post-rolling.
- ● Automatic loading arm: Enhances efficiency in mass production setups.
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Application Case
- ● Client: Automotive Shaft Manufacturer – South Korea.
- ● Use Case: High-precision external thread rolling on drive shaft components.
- ● Setup: R7NC with custom roll dies, guide rails, and mist lubrication system.
- ● Results: Thread tolerance achieved: Class 6g with zero chipping, tool life per die set: Increased to 20,000 cycles, surface finish (Ra): ≤ 1.2 μm, client feedback: “The R7NC outperforms traditional cutting with faster throughput and better fatigue resistance on threaded sections.”
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