Tube welding mill, Type KOW

The Granlund KOW-M tube welding mill is intended for continuous welding of stainless and alloy steel tubes in outer tube diameter 4,0 – 19,0 mm and wall thickness 0,3 – 1,2 mm. A normal welding speed for strip of good quality is 8-20 m/minute. Also mild steel tubes can be produced, but with lower speed.

If you are in the need for larger tube diameter up to 30,0 mm with wall thickness up to 3,0 mm you can use the Granlund KOW-HD welding line.

The best way for element manufacturers to control the tube stock and minimize stock costs, is to produce the tubes themselves. (It is also wise to minimize the number of tube sizes.) GRANLUND offers tube welding mills intended for continuous welding of thin walled tubes for various applications.

The quality of the strip is very important
(cleanliness, burrs and dimension tolerances).

Construction of complete line:
1. Double strip dereeler
2. Welding device for joining strip
3. Strip accumulator, type KSA (option)
4. Forming rolls with stands (8 pairs)
5. TIG welding unit with rectifier and arc stabilizer (arc stabilizer is optional)
6. Calibrating rolls with stands (4 pairs)
7. Eddy current tester (option)
8. Straightening device, type KRO
9. Tube cutting device, type KCT
10. Receiving table, type KOM-2W, and trolley, type KTT (option)
11. Calibrating and deburring unit, type KOG (option)
12. Hyperbolic straightening mill, type KRH (option

Please contact us for more information.

Features/benefits

• Fast operation
• High quality of tubes
• Easy change of tube size
• Close tolerances
• Turn-key installation

Technical information

Control system: Mitsubishi MAC-50 PLC

Total height: 1600-1800 mm

Total length: 14-20 m (complete line), 4 m (welding mill only)

Width: appro. 2500 mm

Weight: appro. 3000 kg (complete line), 1500 kg (welding mill only)

Production speed: (theoretical) 0 - 16 (20) m/min

Tube diameter: 6 mm-19 mm (guilliotine cutter)

Typical tolerance on tube: ±0,04 mm

Wall thickness: 0,3 mm-1,2 mm

Tube length: after cutting max 3000 mm (standard, longer on request)

Strip coil OD: max outer diameter 1250 mm

Strip coil ID: min inner diameter 300 mm, max inner diameter 600 mm

Electrical connection: 3-phase 400 V, 50/60 Hz, 63 A

Air supply: min 600 kPa, dry and oil-free

Argon consumption: 200 - 500 l/hour (we recommend 95% Ar/5% H2)

Water consumption: 200 -400 l/hour

Downloads

Related references

Lorem ipsum dolor amet marfa hexagon mlkshk glossier irony fingerstache seitan chambray sustainable keytar.

Lorem ipsum dolor amet marfa hexagon mlkshk glossier irony fingerstache seitan chambray sustainable keytar. Wolf kombucha green juice bitters austin try-hard man bun.

Discover our latest campaign

We provide technical solutions based on experience and expertise.

Granlund offers a wide range of high-quality products, decades of experience and cost-efficient solutions.

Discover our latest campaign

We provide technical solutions based on experience and expertise.

Granlund offers a wide range of high-quality products, decades of experience and cost-efficient solutions.

Discover our latest campaign