SMC Corporation MKA40-20LN-A73L Rotary Clamp Cylinder

The SMC MKA40-20LN-A73L Rotary Clamp Cylinder is a 40 mm bore rotary clamp actuator in SMC’s MK-series family, designed to clamp and rotate parts in automation cells with repeatable positioning. It offers a compact, fast clamping-to-rotation motion ideal for inline assembly, fixture loading, and rotary indexing where reliable orientation is essential. The MK-series supports interchangeable clamp arms and optional mounting features, enabling integration into custom tooling while preserving a slim footprint. Rotary direction can be configured for left- or right-hand rotation depending on the model, and bore sizes in the MK family span ø12 to ø63 mm to accommodate a broad range of workpieces. Accessory clamp arms and mounting options are available to tailor the cylinder to the specific application.