Welcome to Sigma

The Sigma Group stands for engineering with experience for more than 35 years. Our product portfolio contains equipment for on-site recycling of alkaline and acidic etching solution. It also contain equipment for modernization of hardboard plants. Equipment from Sigma has a short payback period (usually 6-18 months) and helps you increase your profitability.

Combined with modern material technologies, we produce high quality equipment with high throughput, high reliability, low downtimes, easy to clean, corrosion proof and low cost ownership.

Sigma Headquarters is in Karlstad, Sweden.

We combine renown professionals from the equipment, chemistry and yield management fields, with interconnect process equipment and ecological recycling technologies.

Sigma Head Office

Contact us

Phone: +46(0)54–54 85 50

(weekdays between 8–16:30)




Visiting address:

Gräsdalsgatan 12B

SE-653 43 Karlstad


Mail address:
PO-Box 2097
SE-650 02 Karlstad

Our company is credit worthy according to Bisnode's credit assessment system that is based on a number of decision rules. This credit rating is updated on a daily basis, and always shows the current rating and date.