SuperProp ensures precise control and independent movement of the attachment even while pressure variations occur.
Steelwrist
SuperProp expands the XTR technology ecosystem with advanced control
Together with the XTR tiltrotator hardware and the QuantumConnect control system platform, SuperProp completes the technology foundation for Steelwrist’s third-generation tiltrotators.
SuperProp is Steelwrist’s patented, fully pressure-compensated proportional hydraulic technology, integrated in the new XTR models. The technology was developed to improve tiltrotator precision, energy efficiency, and control by reducing energy loss that is common in conventional hydraulic systems.
In a tiltrotator, several hydraulic functions often operate simultaneously: tilt, rotation, gripper, and auxiliary circuits for powered work tools. At the same time, the excavator’s boom and arm functions are moving. In traditional systems, variations in pressure can affect the flow through proportional valves, which can reduce control precision and make combined movements more difficult to operate smoothly.
SuperProp is designed to address this challenge by maintaining precise and independent control of the tiltrotator functions even when system pressure varies. The patented technology uses fully pressure-compensated proportional control to give the operator smooth, predictable, and responsive movement. This is especially important when several functions are used simultaneously, such as tilting and rotating while operating the boom and arm.
The technology also contributes to improved energy efficiency. By dynamically matching pressure to the actual load and using only the energy required for the task, SuperProp helps reduce unnecessary losses in the hydraulic system. This can contribute to reduced fuel consumption, lower heat generation, and improved operating efficiency.
In the XTR tiltrotators, SuperProp is fully integrated into the design. A central part of the development work has been the redesigned swivel, developed to ensure full flow capacity also below the tiltrotator. In combination with the XTR series’s larger port dimensions, the system supports full 350 bar machine pressure and up to 200 l/min hydraulic flow for demanding powered work tools.
SuperProp also enables all tiltrotator functions — tilt, rotation, gripper, and auxiliary circuit — to work independently of each other. The system can deliver full flow to tools while maintaining full tiltrotator performance, making it possible to operate powered work tools efficiently without compromising tiltrotator control. The system is also designed for high auxiliary circuit capacity, supporting demanding applications where both tool performance and tiltrotator precision are required.
SuperProp will be available during the third quarter of 2026 on XTR10 to XTR23.
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