Core advantages of the 12 inch pneumechanical expanding shaft with lugs  :  

✅ High precision positioning: Unexpanded φ302.4 ± 0.05mm, after expansion, the no-load runout is ≤ 0.1mm, eliminating the deviation and wrinkling of the sheet material, and improving the forming accuracy of new energy materials.

✅ High load durability: Rated maximum load 400kg, suitable for 24/7 continuous operation of the production line. Core components are made of 42CrMo/40Cr material, with hard chrome plating + hard oxygen treatment, resistant to wear and corrosion.

✅ Convenient air expansion design: Built-in cylinder without external connection, 0.4-0.6MPa air pressure for rapid expansion and contraction, piston angle 7°, improving the roll changing efficiency and reducing production line downtime.

✅ Scientific structure layout: 10 equally divided aluminum expansion pins + 3 guide roller strips, precise sheet material positioning, stable tension control, suitable for coating / winding core processes.

✅ Exclusive adaptation for new energy: Overall free of copper, zinc, and nickel, suitable for special production environments in the industry; weight < 150kg, no need to modify the production line, directly install and connect.

✅ Strict process standards: Small screws A2-70 stainless steel, M6 and above 12.9 grade blackening, anti-loosening, anti-vibration, suitable for high-speed operation of the production line.

Exclusive customized design, meeting the requirements of the new energy production line

The shaft structure is optimized based on the working characteristics of the coating machine and winding machine. The guiding rollers and expansion keys work together to ensure the smooth and non-slip transportation of the roll material, and guarantee uniform tension during coating and winding processes.

The weight of the shaft is less than 150kg, balancing the bearing capacity and equipment load requirements. No major modification of the production line is needed; it can be directly installed and adapted.

Standardized interfaces are reserved. According to the actual working conditions of the customer's new energy production line, the expansion stroke, key bar specifications, and installation dimensions can be customized and adjusted to achieve seamless connection.

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