SMC Corporation NRBC075-045 Pneumatic Shock Absorber

The SMC NRBC075-045 pneumatic shock absorber is a compact, non-adjustable unit in the NRB family with a 0.45 in stroke and a cap included. Measuring 3.650 in long by 0.750 in wide and weighing 131.5 g, it is designed to mount on pneumatic cylinder rods where space is tight and reliable deceleration is required. The NRBC075-045 provides an extended spring force of 1.54 lbs and a compressed spring force of 3.59 lbs, delivering up to 170 in of energy absorption per cycle and supporting up to 45 cycles per minute at a collision speed up to 16 ft/s. This model’s fixed settings offer consistent deceleration without adjustment, making it suitable for cushioning impacts in automated machinery and packaging lines where predictable performance is essential; in automated systems, shock absorbers like this help minimize impact and reduce noise. The included cap adds sealing protection in dirty environments, supporting long-term reliability.