LW800 Direct Square Forming Tube Mill Line

The LW800 direct forming square section machine is designed for efficient production of medium and large square and rectangular steel tubes. Compared with traditional round-to-square forming methods, this line adopts direct square forming technology, allowing steel strip to be formed directly into square or rectangular sections with less deformation and better dimensional consistency.

This machine is especially suitable for manufacturers who need flexible production of square sections from 90×90mm to 200×200mm and rectangular sections with 90–200mm height and width. With a forming thickness range of 3.0–8.0mm and a tube mill speed of 15–45m/min, the LW800 provides a practical balance between production capacity, forming accuracy, and investment cost.

Why Choose a Direct Forming Square Section Machine?

A direct forming square section machine is different from a conventional tube mill that first forms round tubes and then reshapes them into square tubes. The direct forming process helps reduce material stress during production and improves the appearance and accuracy of the finished square or rectangular tube.

For tube manufacturers, this means fewer forming steps, more stable tube dimensions, better corner quality, and faster size changeover. The LW800 is a suitable option for factories producing multiple square tube sizes for construction, equipment frames, steel structures, racking systems, and industrial fabrication.

Key Features of LW800 Direct Forming Square Section Machine

Direct Square Multi-Point Pre-Bending Forming

The LW800 Direct Forming Square Section Machine uses direct square multi-point pre-bending forming technology to improve the forming stability of medium and large square sections. This helps achieve better corner shape, smoother tube surface, and more consistent section accuracy.

Combined Mold Design with Electric Adjustment

The forming system adopts a combined mold design. Operators do not need to replace a full set of rollers for every size change. Electric adjustment helps reduce downtime, simplify operation, and improve production flexibility for factories handling different square and rectangular tube orders.

PLC Control and One-Button Reset

The complete line is controlled by PLC, with one-button reset and high automation. This helps reduce manual adjustment errors, improve operating efficiency, and maintain stable production quality during continuous tube manufacturing.

Higher Speed for Medium-Size Tube Production

With a tube mill speed of 15–45m/min, the LW800 direct forming square section machine is suitable for manufacturers who need higher output for medium-size square tubes. It is a practical choice for production lines that require both size flexibility and efficient batch production.

Compact Layout Compared with Larger Models

The recommended plant dimension for the LW800 line is about 150m × 24m × 6m. Compared with larger direct square forming tube mill lines, the LW800 direct forming square section machine requires less workshop space while still covering a wide range of medium and large square tube sizes.