At ST Machineries, we understand that the performance of a tube mill is only as good as its tooling set. That's why every ST tube mill is paired with a custom-designed, high-precision forming tooling system-meticulously engineered to ensure consistent tube geometry, minimal material stress, and superior surface quality from the first meter to the last.
Key Applications
Our tooling sets are designed for the production of:
- Round, square, rectangular, and custom-shaped profile tubes
- High-frequency welded (HFW) and TIG-welded pipes
- Architectural, automotive, furniture, and industrial structural tubing
How It Works – The ST Machineries Forming Process
Each tooling set supports a four-stage forming workflow:
- Forming: Precision roll tooling gradually shapes flat strip into a tubular profile.
- Welding: Seam is fused using HFW or TIG methods, ensuring strong, clean welds.
- Sizing & Finishing: Sizing rolls and calibration tooling bring the tube to exact dimensional tolerances.
- Cutting: Final tube is either coiled or cut to length per customer specifications.
Comprehensive Tooling Portfolio
ST Machineries offers a full suite of mold types to match diverse production needs:
- Round tube tooling
- Square & rectangular tube tooling
- Oval, D-shaped, fan-shaped, octagonal, and plum blossom profiles
- Fully customizable tooling for non-standard or complex cross-sections
Superior Material & Manufacturing Standards
All ST Machineries tooling sets are crafted from premium-grade Cr12MoV / SKD11 tool steel, delivering:
- Uniform hardness of 61–65 HRC
- Exceptional wear resistance and longevity
- Smooth tube surfaces-free of scratches, "nail marks," or deformation
Our production process includes:
- Precision blanking
- CNC rough and finish machining
- High-temperature quenching & tempering
- Surface nitriding for enhanced durability
- Final hand-fitting and quality inspection
Tooling Configurations
- Horizontal Rolls: Feature precision keyways and shaft bores for stable alignment
- Vertical Rolls: Integrated with high-load bearings for smooth operation and minimal runout
Standard Compatibility
Tooling sets are available for common mill sizes including ST40, ST50, and ST60 machines, with full customization supported for special requirements.
Stainless Steel Welded Pipe Mill
Why Choose ST Machineries?
Proven forming design principles ensure stable, high-speed production
Micron-level machining accuracy for consistent tube geometry
Reduced downtime and extended tool life thanks to advanced heat treatment
Global support for international tube producers
Whether you're producing standard round pipes or complex architectural profiles, ST Machineries' tooling sets provide the reliability, precision, and versatility your tube mill demands.
