Polycar MP carriage welding machine for narrow-gap welding of extra-thick-wall pipes
Country: · Model: Polycar MP
Polycar MP is a heavy open carriage for multipass orbital welding of pipes from 168 mm with a wall thickness up to 250 mm. It works with hot-wire TIG or plasma at a speed of 30–1000 mm/min. It is taken for thick-wall pipelines in power engineering, including nuclear, in oil and gas and in chemicals.
- Pipe outside diameter
- from 168 mm
- Wall thickness
- up to 250 mm (per brochure; on the website up to 300 mm)
- Processes
- hot-wire TIG, plasma
- Welding speed
- 30–1000 mm/min
Technical specifications
| Pipe outside diameter | from 168 mm |
|---|---|
| Wall thickness | up to 250 mm (per brochure; on the website up to 300 mm) |
| Processes | hot-wire TIG, plasma |
| Welding speed | 30–1000 mm/min |
| AVC/OSC | stroke 69 mm, up to 2500 mm/min |
| Wire feed | up to 7.9 m/min, Ø0.8–1.0 mm, 5 kg spool |
| Carriage weight | 16 kg |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The carriage is modular, so interchangeable torch modules are fitted to it. These are standard TIG, V2 Narrow Gap for walls up to 75 mm, Narrow Gap for walls up to 250 mm and more, and a plasma module. Water-cooled torches are connected through quick-disconnect couplings. The carriage runs on a stainless steel guide ring, and the longitudinal torch tilt is motorized or manual. Motorized AVC and OSC have a stroke of 69 mm and a speed up to 2500 mm/min, and an encoder runs the program by position. The weld can be made through 360° in all positions or in two 180° half-circles uphill or downhill, with one or two carriages at the same time. The built-in wire feeder takes a Ø200 mm spool weighing 5 kg, the hot wire feed speed is up to 7.9 m/min, and the diameter is 0.8, 0.9 or 1.0 mm. There is a single hose-and-cable pack between the carriage and the control unit, 15 m long, and pre-positioning runs at 2000 mm/min.
How to choose
The main thing in choosing is the wall thickness. The V2 Narrow Gap module covers walls up to 75 mm, and Narrow Gap works up to 250 mm and more. The thickness up to 250 mm is given per the brochure, while the website states up to 300 mm, so for borderline cases the value is clarified. The carriage weighs 16 kg without the cable. The power source is a P6 for 300 A with AVC and OSC or from the PC series for 300–550 A with an interface for mechanized and robotic peripherals.
Request a price and lead time
Polycar MP carriage welding machine for narrow-gap welding of extra-thick-wall pipes. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the maximum wall thickness for Polycar MP?
Up to 250 mm per the brochure, while the website states up to 300 mm. For the Narrow Gap module a thickness up to 250 mm and more is stated.
From what pipe diameter does Polycar MP work?
A pipe outside diameter from 168 mm.
Which power sources are compatible with Polycar MP?
The P6 source for 300 A with AVC and OSC and PC series sources for 300–550 A.
What wire and spool does Polycar MP use?
Wire of 0.8, 0.9 or 1.0 mm diameter on a Ø200 mm spool weighing 5 kg, with a hot wire feed speed up to 7.9 m/min.
How much does the carriage weigh and what cable goes to it?
The carriage weighs 16 kg without the cable. A single hose-and-cable pack to the control unit is 15 m long.
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