UHP — Enclosed Orbital Welding Head for Ultra-High-Purity Tubes Ø1.6–17.3 mm and Larger
Country: · Model: UHP 250-2 / UHP 500-3 / UHP 625 / UHP 1000
An enclosed orbital welding head for autogenous TIG welding of precision tubes and micro fittings with an outside diameter from 1.6 to 17.3 mm. The weld is made in a chamber with shielding gas without filler wire, so there is no oxidation and no heat tint. The heads are installed on ultra-pure gas and liquid lines in semiconductor production, pharmaceuticals, the food industry and clean rooms.
- Models
- UHP 250-2, UHP 500-3, UHP 625, UHP 1000
- Tube outside diameter
- 1.60–6.35 mm (UHP 250-2), 3.0–12.7 mm (UHP 500-3), 3–17.3 mm (UHP 625)
- Process
- TIG without filler, enclosed chamber
- Clamping
- titanium cassettes/clamping blocks
Technical specifications
| Models | UHP 250-2, UHP 500-3, UHP 625, UHP 1000 |
|---|---|
| Tube outside diameter | 1.60–6.35 mm (UHP 250-2), 3.0–12.7 mm (UHP 500-3), 3–17.3 mm (UHP 625) |
| Process | TIG without filler, enclosed chamber |
| Clamping | titanium cassettes/clamping blocks |
| Cable | 5.5 m |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The tubes are held by removable titanium cassettes or clamping blocks with collets, which take the outside diameter tolerance into account and do not damage the sterile surface. The high-purity gas circuit prevents particle release. The welding speed, constant or pulsed, is held in a closed loop, and an encoder runs the program by the electrode position. The return function puts the electrode gear into the loading position. The narrow profile and asymmetrical design are needed for tight spaces and fittings with a short stick-out. A high-frequency interference protection is also provided, and the cable length is 5.5 m. UHP 250 and UHP 500 are built on a modular principle, with a single drive handle and two electrode gear modules for 1/4 and 1/2 inch. The heads work with the manufacturer's power sources, first of all the compact single-phase P3 UHP weighing 17 kg, and also with P4 and P6.
How to choose
The model is chosen by the tube outside diameter. UHP 250-2 works with tubes of 1.60–6.35 mm, UHP 500-3 with 3.00–12.70 mm, UHP 625 with 3–17.3 mm, and it has its own drive, removable clamping blocks and a control panel in the handle. The new UHP 1000 (2024) widens the diameter range with smaller dimensions, and its quick-change handle fits the UHP 250, 500 and 1000 modules. For open tube-to-tube joints and filler wire take MU IV.
Request a price and lead time
UHP — Enclosed Orbital Welding Head for Ultra-High-Purity Tubes Ø1.6–17.3 mm and Larger. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Which tubes do UHP heads weld?
Precision tubes and micro fittings made of stainless steel. UHP 250-2 takes 1.60–6.35 mm, UHP 500-3 3.00–12.70 mm, UHP 625 3–17.3 mm.
Is filler wire needed?
No, the welding is autogenous, TIG without filler in an enclosed chamber with shielding gas.
What is the cable length of the head?
5.5 m.
Which power source suits UHP?
Any of the manufacturer's sources, most often the compact P3 UHP weighing 17 kg with single-phase supply. Also P4 and P6.
What has changed in UHP 1000?
The 2024 head widens the diameter range with smaller dimensions and has a quick-change handle for the UHP 250, 500 and 1000 modules.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.