This units can be used in any electromechanical system that requires unrestrained,continuous rotation while transferring 

power or data from a stationary to a rotating structure.It's also called a rotary electrical 

interface,commutator,collector,swivel or an electrical rotary joint.It can improve electromechanical capability,simplify 

system design,eliminate possible damage while rotation.It's the key apparatus of various precision rotary worktable, 

electric test instrument,manufacture and process control instrument.

Features:

■ 3 circuits or 9 circuits combinations models

■ 2 , 5 , 10 amps per circuit

■ Speeds up to 300 rpm continuous

■ Gold-on-gold contacts

■ Color-coded, silver-plated, Teflon insulated lead wires

■ Longer lead wire available

■ Compatible with data bus protocols

■ Transfers analog and digital signals

■ Sealed units are also available

http://www.chinaslipring.com