Resistance Welding
A Core Competence of SBT
Our company has around 30 years of experience in the area of contact welding technology. The first contact welding machines were already produced at SBT in 1983. Ten years later in 1993 we redefined the standards in resistance welding: with the development of the innovative quick change system.
The benefit to our customers is as strong as it was on the very first day: It makes it possible for the customer to change over contact welders in less than 10 minutes, e.g. from round wire to profile tape contacts. The implication: Considerably higher cost effectiveness and productivity as well as greatly reduced scrap rates /margins of error due to the higher precision.
Highlights of the SBT welding equipment
- Excellent welding quality at a higher speed as a result of cam-controlled sequence of motions
- Quick change cassette system for different contact weld wires or contact weld profile tapes
- Separate servo drives for independent set up and testing at preliminary sites
Versatility
SBT contact welding machines, heavy duty contacts, double contacts as well as profile tapes and a broad range of wires up to 6mm² cross section
Speed
The cam-controlled sequence permits the highest production speeds with a constant weld quality since the working speed has no influence on the quality of the weld as a result of the cam-controlled lowering of the electrodes onto the weld metal.
Quick change system
All of the SBT contact welders have the innovative quick change system, which significantly simplifies the changing of the contact types. The set up can be tested and created at the pre-setting desk.
Global success
SBT contact welding technology is convincing to customers all over the world because of its versatility, its high performance potential and constant quality of parts. More than 150 contact welding plants have already been installed for companies in the industry and manufacturing operations since the first SBT contact welder were produced in 1983. Including but not limited to in the USA, Australia and China as well as in almost all of the European countries.
Precision
All of the SBT contact welder sequences are cam-controlled and each smallest movement is assigned its own cam. This guarantees precise movements even at a high stroke rate.
Quality
The contacts are cut off inside the welder using carbide cutting elements. After cutting the contact is immediately transferred so that there is only ever one single contact in the welder. By request we also produce contact welders that utilize the electrode to cut the contact.
The contact cuts are usually transferred under the electrodes with the use of a transfer pusher, this guarantees constant contact positions and a controlled process because the pushing in of the contacts is monitored by sensors.
Universal & autonomous
SBT contact welders are driven by servo-motors (direct drive) or alternatively by chain drive. As a result the welders can be used on almost any stamping or stamping bending machine by all manufacturers and set up and tested at any time at preliminary sites regardless of ongoing operation.
