DFT Direct Square Forming Tube Mill

The direct-to-square forming method is an advanced manufacturing process in ERW tube production. Unlike the traditional round-to-square approach, this method forms square or rectangular tubes directly from flat steel strip—eliminating the intermediate round tube step. The result is a more efficient production route with shorter forming paths and higher throughput.

A major advantage of this system is the use of a universal set of forming rolls capable of producing various square and rectangular tube sizes. This eliminates the need for frequent mold changes, saving both tooling costs and changeover time. Operators can simply adjust roll positions and guide systems to switch between sizes, making it ideal for flexible, multi-size production lines.

DFT1200(300x300mm) Direct Square to Square Forming Pipe Mill

10inch 273mm ERW Pipe Making Machine

Advanced Technology That Solves Real-World Challenges

Our equipment is engineered with the latest automation and digital technologies to support smarter manufacturing:

Servo-controlled width and height adjustment for fast, precise setup

Industrial-grade PLC control systems for accurate tube dimensioning

High-frequency welding with closed-loop monitoring ensures stable, high-quality welds

Servo flying cutoff system for continuous cutting without halting production

Optional integration with automatic stacking, online diameter measurement, and weld seam tracking

Comprehensive technical support, including remote diagnostics, on-site commissioning, and operator training to help clients ramp up quickly

Wide Range of Applications

Tubes produced through direct-to-square forming are ideal for a variety of structural and industrial uses:

Steel building frames and supports

Solar panel mounting systems and scaffolding

Furniture and shelving systems

Cable trays and rail transit components

Agricultural machinery and automotive frame structures

This method is especially suited for applications that demand precise corners, clean edges, and consistent cross-section dimensions.

Daily Maintenance Tips

To ensure long-term reliability and consistent product quality, we recommend the following maintenance practices:

Clean all forming and sizing rollers daily to remove debris or residue

Regularly verify size calibration to prevent dimensional drift

Lubricate key bearings and sliding components on schedule

Monitor weld alignment—accurate centering ensures symmetrical forming

Inspect rolls, bearings, and guiding elements for wear and replace when needed

Check and calibrate automation components such as sensors, PLCs, and servo motors

Maintain a production log to track performance and fine-tune parameters as needed