TTB W / THP W / TTW / PTW — water-cooled TIG torches and plasma torches

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026. Customs codes are for reference only; the final code is determined at customs declaration for the specific model.

Description

The Multilock bodies TTB 180P W ML give 180/140 A on direct current and 140/110 A on alternating current, the TTB 300 W ML and 300 W ML flex 300/230 A (AC 250/190 A), the TTB 400 W ML 400/300 A with a 1.0–4.8 mm electrode, and the TTB 500 W ML 500/400 A (AC 400/300 A) with an electrode of up to 6.4 mm. Flexible water-cooled bodies withstand up to 200 bends by a standardised method. The THP 300i, 400i and 500i W ML hose packages have Up/Down, JobMaster or potentiometer control and a length of 4 or 8 m; there is also the THP 300 W SH ML with a small handle. The TTW 225 P and 380 P torches give 225 and 380 A TIG DC at 60 % duty cycle (AC 155 and 265 A) with 1.0–3.2 and 1.0–4.8 mm electrodes. The PTW 150i plasma torch runs from iWave power sources with the OPT/i Plasma option, has a 1.0–3.2 mm electrode and Up/Down control. The arc, constricted by a cooled nozzle, gives up to 20 % higher speed than TIG, and in keyhole mode up to 100 %; it welds without edge preparation and uses up to 30 % less filler material.

How to choose

On alternating current the load capacity is lower, so for aluminium the torch is rated by the AC value. Up to 300 A the TTB 300 W ML is enough; for 400–500 A you need the TTB 400 or 500 W ML with a thicker electrode. On long welds without edge preparation the PTW 150i plasma torch will be faster than TIG.