Bimba US-128.5 Ultran® Rodless Actuator Cylinder, 1-1/4" Bore 8-1/2" Stroke

Bimba Ultran® US-128.5 is a compact rodless pneumatic actuator designed for applications requiring linear motion in limited space, offering efficient force transfer without the need for a traditional piston rod. This unit features a 1-1/4 inch bore and an 8-1/2 inch stroke, with a robust aluminum body and stainless steel carrier system, ensuring durability, corrosion resistance, and smooth operation in industrial automation environments. Manufacturer: Bimba Manufacturing Company Model: US-128.5 Series: Ultran® Rodless Cylinder Product Type: Rodless Pneumatic Actuator Action Type: Double acting Bore Size: 1-1/4 in (31.75 mm) Stroke Length: 8-1/2 in (215.9 mm) Cylinder Design: Rodless band-type cylinder Actuation Method: Internal piston magnetically or mechanically coupled to external carriage Body Material: Extruded aluminum alloy Carriage Block Material: Aluminum block with integrated mounting surface Rod/Carrier Material: Stainless steel (corrosion-resistant) Sealing System: Sealing band with internal piston seal to prevent air leakage Maximum Operating Pressure: 100 PSI (as indicated on label) Operating Pressure Range: Typically 20 to 100 PSI (0.14 to 0.69 MPa) Operating Medium: Clean, filtered compressed air Temperature Range: -20°C to +80°C (non-freezing conditions) Speed Range: Approximately 50 to 1500 mm/s depending on load and pressure Cushioning: Limited or optional cushioning depending on configuration Port Size: Typically 1/8" or 1/4" NPT (exact size depends on version) Port Location: End-mounted ports integrated in body Mounting Options: Direct body mounting or carriage mounting via threaded holes Guidance: External carriage supports load; additional guidance recommended for high side loads Lubrication: Pre-lubricated; additional lubrication optional Stroke Accuracy: Standard industrial tolerance (approx. ±1 mm) Weight: Approx. 1.5–2.5 kg (estimated for this configuration) Manufacturing Country: United States Please review pictures carefully and let us know if you have any questions!