Overview
The SMC RBC2015 shock absorber is a self-adjusting, compact design that protects equipment from harmful impacts and vibrations. Part of SMC’s RB series, the RBC2015 features a “with cap” configuration and is rated for maximum impact speeds up to 5 m/s. The unit combines a robust rolled-steel body with a hardened stainless-steel piston rod, making it suitable for both standard and harsh-environment applications. This shock absorber automatically compensates for varying load conditions, reducing installation complexity and maintenance requirements.
Key Features
- Absorbs impact and noise
- Compact type that has been shortened lengthwise
- Allowable deviation angle is 5° for flexible mounting orientations
- Can be used without an external stopper; the robust body can be positioned directly
- Automatically adjusts to the most appropriate energy absorption performance
- Steel body with Weartec-Plus (harsh environment) finish, hardened stainless-steel piston rod, and noise-suppression insert
Technical Specifications
- Thread Size: M20 x 1.5
- Stroke: 15 mm
- Max Impact Force: 1,961 N
- Max Energy Absorption: 20.50 J
- Max Impact Speed Range: 0.05 to 5 m/s
- Compressed Spring Force: 4.60 lbs
- Weight (Extended): 150 g
- Weight (Retracted): 165 g
- Body Length: 73.2 mm
- Overall Length: 105.2 mm
- Operating Temperature: −10°C to +80°C
- Type: Shock absorber with cap
Typical Applications
The SMC RBC2015 is widely used in industrial automation for protecting:
- Pneumatic and hydraulic cylinder cushioning
- Robot end-of-stroke impact protection
- Assembly-line mechanical stops and buffers
- Motion-control systems requiring repeatable energy dissipation
- Machinery with rotational components and swing-arm impacts
Compatibility & Replacements
Compatible With
- SMC pneumatic cylinders (RB series)
- Standard M20 x 1.5 threaded ports on cylinders and manifolds
- Pneumatic and hydraulic automation systems requiring 5 m/s impact capability
- Applicable thread O.D. sizes: M6, M8, M10, M14, M20, M27 (RBC2015 uses M20)
Replaces / Drop-In Replacement For
- SMC RB2015 (basic type without cap) — upgrade to RBC2015 “with cap” configuration for added wear protection
Works With
- SMC modular valve systems and sandwich manifolds
- Stopper-nut adjustment kits for stroke optimization (sold separately)
- Universal mounting and stop-collar attachments (available separately)
- All standard pneumatic control systems using M20 x 1.5 porting
