The US Series Shock Absorber is a compact, self-compensating hydraulic damper designed to provide reliable, maintenance-free impact control in automated machinery, robotics, and pneumatic motion systems. Engineered for precise deceleration, this series absorbs energy smoothly at the end of a stroke, preventing mechanical shock, reducing vibration, and extending equipment life.

With a fixed damping setting, the US series requires no manual adjustment, making it ideal for standard load applications. Its hardened steel body, chrome-plated piston rod, and pre-filled hydraulic oil system ensure consistent energy absorption over more than 1 million operating cycles.

Available in M8 to M25 thread sizes and stroke lengths ranging from 6 mm to 40 mm, the US Series supports impact velocities up to 3.5 m/s and energy capacities up to 300 Nm per cycle, depending on model. The internal spring return enables automatic resetting, allowing the absorber to cycle quickly in fast-paced production lines and automation cells.

The US Series is a trusted solution for pneumatic actuators, robotic pick-and-place arms, linear slides, packaging machines, and end-of-arm tooling, where smooth and safe stopping is critical.

Key Features of US Series Shock Absorber:

Self-Compensating Fixed Damping

• ✅ Pre-set damping characteristics eliminate the need for manual adjustment

• ✅ Ensures repeatable and stable deceleration for standard loads

• ✅ Simplifies installation and setup

Durable Build Quality

• ✅ Body: Hardened steel with corrosion-resistant black oxide finish

• ✅ Rod: Chrome-plated steel for wear resistance and low friction

• ✅ Internal seals made from NBR, with optional FKM for high-temp use

Internal Spring Return

• ✅ Automatically resets after each cycle

• ✅ Supports high-frequency applications with minimal lag time

• ✅ Enables continuous operation in automation environments

Compact & Threaded Design

• ✅ Sizes: M8, M10, M12, M16, M20, M25

• ✅ Stroke range: 6 mm to 40 mm

• ✅ Easy to mount in tight machine assemblies

Typical Applications

• ✅ Pneumatic cylinder end cushioning

• ✅ Linear motion damping

• ✅ Robotic arm deceleration

• ✅ Conveyor and packaging line impact control

• ✅ Pick-and-place unit stopping

Why Choose the US Series Shock Absorber?

• ✔️ Maintenance-free solution with over 1 million cycles

• ✔️ Consistent performance with fixed damping

• ✔️ Compact design ideal for space-constrained machinery

• ✔️ Reduces equipment wear, noise, and vibration

• ✔️ Cost-effective and reliable for general industrial use