Curved PEMA Skycoil coil pressed against a large steel tube section, with its cooling unit beside it
Induction Preheater
PEMA Skycoil Induction Preheater
Curve-shaped induction preheater for heavy tubular workpieces 5–15 m in diameter
PEMA Skycoil is a curve-shaped induction preheater for welding heavy tubular workpieces up to 15 m in diameter and 160 mm thick, such as wind tower monopiles and offshore foundations, with no flames or fumes.
Manufactured byPemamek
5–15 mWorkpiece diameter, no adjustment
Up to 160 mmMaterial thickness
Up to 84%Better energy efficiency than gas
2 rotationsTo reach welding temperature
Overview
Heat goes into the workpiece, not into the air
PEMA Skycoil is a curve-shaped induction preheater with high-precision heat control for welding heavy tubular workpieces up to 15 m in diameter. It works with any existing or new heavy tubular welding process and heats thick materials up to 160 mm, such as wind tower monopiles and offshore foundations.
Induction transfers heat straight into the workpiece. Compared with natural gas, Pemamek states up to 84% better energy efficiency and savings of up to 188 MWh in the assembly of a single monopile. The welding temperature can be reached in only 2 rotations of the workpiece, even on thick material.
Skycoil preheats internal and outside circumferential welds or heats during welding. It covers diameters of 5 to 15 m without adjustment, and the compact unit is moved beside the workpiece with an optional integrated electric drive, a forklift or a pallet jack, then plugged in and set with the heating parameters.
Applications
Where Skycoil is used
Skycoil is designed for thick, large-diameter tubular sections in wind energy and offshore work.
Wind tower monopiles
Seam heating of thick monopile sections, with savings of up to 188 MWh per monopile.
Offshore foundations
Preheating of heavy tubular foundation sections up to 160 mm thick.
Inside and outside seams
Preheating of internal and outside circumferential welds on the same unit.
Heating during welding
Holds thick material at its correct welding temperature while the seam is welded.
Features
Preheater features
- Curve-shaped induction coil for large tubular workpieces
- High-precision heat control system
- Diameter range of 5 to 15 m without adjustment
- Heats materials up to 160 mm thick
- Optional integrated electric drive system
- Movable by forklift or pallet jack
- Set-up by plugging in the power cord and entering heating parameters
Benefits
What it brings to production
Up to 84% better energy efficiency than a natural gas system
Welding temperature reached in about 2 workpiece rotations
No flames or fumes, and no risk of overheating through misuse
No hydrogen build-up or combustible by-products from flame heating
Lower risk of burn injuries, fires and explosions
Fast setup beside the workpiece
Preheating thick tubular sections?
Share your workpiece diameters, wall thicknesses and preheat requirements, and our Machinery team will check how PEMA Skycoil fits your line.
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