The Rowac KS 33 is a transformer MIG/MAG welder with a transformer on thick copper, for a 400 V supply. The welding current reaches 330 A at a 60% duty cycle, and at a continuous 100% load the machine holds 250 A. You set the arc voltage in steps from 15.8 V to 33 V.
What this machine is for
This is a welder for mild steel in a metalwork shop and in repairs: gates, frames, brackets, structures of medium and greater thickness. A 60% duty cycle at 330 A is high for this class, so the machine pulls longer fillet welds, and at 250 A you work without a time limit. The upper setting of 33 V gives reserve with thicker wire and a higher feed speed. The control is analogue, without synergy, so the welder picks the voltage and the feed.
Features and equipment
- Transformer on thick copper: good conductivity and a stable temperature in long work.
- Stepped voltage adjustment from 15.8 V to 33 V, 10 fine positions and 2 coarse ones.
- Stepless adjustment of the wire feed.
- 4 roll feeder: less wire slip than on a two roll drive.
- Working modes: 2 stroke, 2 stroke spot, 2 stroke timed, 4 stroke, 4 stroke spot and 4 stroke timed.
- Stepless setting of the welding time and of the pause time.
- Setting of the wire run out time after welding: it keeps the length of the free stickout in order before the next strike.
Technical data
| Brand | Rowac |
|---|---|
| Type | transformer MIG/MAG welder |
| Current at 60% duty cycle | 330 A |
| Current at 100% duty cycle | 250 A |
| Welding voltage | from 15.8 V to 33 V |
| Supply | 400 V |
| Current protection | 22 A |
| Wire feeder | 4 roll |
| Cooling | gas |
What to watch out for
The machine needs a 400 V power socket, the documentation gives a 22 A fuse. Gas cools the torch, so on long beads at a high current the handle heats up and you have to plan breaks. The stepped adjustment does not change the voltage while the arc burns, you pick the setting before the bead. The data sheet lists neither a torch nor cables, and it gives neither the weight nor the dimensions, so confirm the equipment before you buy.
This unit is sold
This machine has already gone to a customer. Similar units are listed below, and if you want the same model, leave your contact details in the form and we will let you know when the next one arrives.