SIP Welding & Cutting Machines At SIP, we are constantly researching and developing new technologies to add into our comprehensive welding collection, which is why our collection is one of the largest collections available in the UK and worldwide. Our units are modern, up-to-date and state-of-the-art welding machines. Lightweight, powerful, flexible, feature-rich, easy-to-use; our range features units that meet just about any welding need, and saves you from buying multiple machines elsewhere. Great for construction, agriculture, mobile maintenance, automotive and more. SIP Welding & Cutting Machines SIP’s range of welding machines is one of the largest in the UK. Our superb patented collection of compact welders boast exceptional technology at a value price. Featuring a collection of flexible machines including; Hi-Tech Inverters and dual purpose machines, transformer-based MIG and ARC welders, industrial ST-MIG models, and plasma cutters. If that was not enough, our array of compact, feature-rich units are complemented by heavy-duty column spot welders, welder-generator units, and the arrival of the premium HELVi® range, to further strengthen our research, development and innovation.