MCM | 5-axis portable CNC cutting & welding machines

Why MCM for doorframe cutting and welding ?

Promotech’s MCM machines are a true portable CNC cutting and welding machines. They can work on
round, conical or flat surfaces as well as on multi-surface parts. These machines are designed and manufactured by Promotech and are made of highest quality European parts.

The application of a door frame to a wind tower, which requires cutting, beveling, assembling and welding processes, is a time consuming operation that deeply affects the manufacturing cycle.

Promotech’s MCM Machines – Portable CNC Oxy-Cutting & Beveling and SAW Welding accepts two technologies that apply door to tower:

■ Door frame welded directly on tower
■ Door frame welded in a rectangular plate, which is then welded in the tower section
■ Cutting & Beveling openings in Big-size Monopiles, and maximum plate thickness up to #150 mm

and It’s One-man operation.

In all cases MCM machines produce perfect joints, door frame fit up and MCM SAW welds in “full penetration” class acceptability level B according to ISO 5817. Less than 1% of welding defect rate and no grinding by finished welded seam of the door frame inside and outside tower section it’s confirmed by customers in Wind Business.

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MCM process step by step MCM laser measurement and plate scanning capabilities

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MCM scanning system

Simple and easy MCM control system

One-man operation

Benefit: To obtain individual door frame shape for cutting/beveling and welding operations.

Benefit: Any CNC programming is required nor costly operator’s training

Benefit: Minimized Overhead and Labor Cost

Aperture automatic or semi-automatic MCM cutting and beveling.

MCM SAW Welding (inside)

MCM SAW welding (outside)

Benefit: Minimized grinding / perfect door frame fitting

Benefit: Welding deposition rate from 8 to 11.6 kg/hour

Less than 1% of welding defect rate and no grinding by finished welded seam of the door frame inside and outside. It’s confirmed with Customers in Wind Business.


Make sure you are familiar with Promotech MCM-1000/4000 brochure including technical data and detailed information about this system.


Click to see the video!

MCM - now with laser measurement and plate scanning capabilities