The TRB series is Aventics' round-body metric cylinder line, descended from the Rexroth Pneumatik lineage. Non-repairable steel barrel construction with rolled ends keeps overall length compact and unit cost low across bores from 32 mm to 100 mm. With magnetic piston, integral cushioning, and ISO 8139 / ISO 6431 mounting options, the TRB platform fits OEM machinery applications where reliable, sealed-for-life metric actuation is the priority.