Ultraflex UC133-IOB siłownik hydrauliczny do steru | Ultraflex 39429M

The Ultraflex UC133-IOB is a hydraulic steering cylinder designed for motorboat and semi-planing boat steering systems, compatible with the Ultraflex Hytech/HyDrive family of systems and mounted directly on the tiller or the outboard engine steering arm or on the transom bracket in single and dual-pole installations. The cylinder converts the hydraulic piston movement into a precise rudder angle, ensuring smooth, even, and backlash-free steering at high speeds and under heavy hydrodynamic loads. The design allows for bolt-on mounting at standard engine manufacturer mounting points (Yamaha/Mercury/BRP and others) or on dedicated Ultraflex brackets, maintaining proper clearances and alignment relative to the steering joint; hydraulic hoses connect to the cylinder ports via fittings with standard diameter and Ultraflex system thread, facilitating integration with Ultraflex manual (helm) pumps. The cylinder body is made of corrosion-resistant hard-anodized aluminum alloy, and the piston rod is polished stainless steel, reducing the risk of seizing and leaks in marine environments. The system is maintenance-free except for periodic bleeding and hydraulic oil level checks (marine type ISO VG 15–22 compliant with Ultraflex recommendations). Applications include RIB yachts, fishing boats, daycruisers, and bowriders where high steering sensitivity, course stability, and compatibility with hydraulic autopilots are required.

Technical parameters:

Power supply: hydraulic system, marine oil ISO VG 15–22

Type: hydraulic steering cylinder (outboard/steer)

Body material: hard-anodized aluminum

Piston rod material: polished stainless steel

Mounting type: direct on steering arm/outboard engine (bolt-on)

Hydraulic interface: ports with Ultraflex system thread (marine standard)

System compatibility: Ultraflex manual pumps (helm) and Ultraflex hoses

Operation: single- and dual-pole installations

Maintenance: periodic bleeding and oil level check

Intended use: motorboats, RIBs, daycruisers, semi-planing/planing vessels

Product advantages:

- Precise, smooth boat steering thanks to direct conversion of piston movement to rudder angle. - Corrosion resistance in marine environments due to anodized body and stainless piston rod. - Compatibility with popular Ultraflex helm pumps and accessories, facilitating selection and service. - Simple bolt-on installation using factory engine mounting points. - Low maintenance – no mechanical adjustments except bleeding and oil checks. - Course stability at high speeds due to uniform hydraulic characteristics. - Ready for integration with hydraulic autopilot within the Ultraflex system. - Robust construction minimizing play and increasing seal durability under side loads.

Additional information:

Manufacturer: Ultraflex

SKU: 39429M

Model/Series: UC133-IOB

Installation/Service note: maintain alignment of mounting relative to steering joint and properly bleed the system after hose connection