For nearly a century, Rock Oil has been a trusted name in high-performance lubrication. From its purpose-built manufacturing site in the North West of England, the company has built a reputation for delivering high-performance and efficient lubricants, coolants, and greases across a wide range of sectors. With the launch of the new ULTRA-HYD brochure, Rock Oil builds upon its hydraulic lubrication offer – delivering improved clarity, greater accessibility, and enhanced support via the Rock Oil Industrial Division for selecting the correct lubricant for any application.
The ULTRA-HYD brochure is more than a catalogue – it represents a reorganisation of Rock Oil’s hydraulic fluid portfolio. Products are now grouped by performance characteristics and end-use requirements, enabling quicker identification of the most suitable fluid for each application or system. Whether food-grade, fire-resistant, zinc-free, synthetic, high-viscosity index, or biodegradable, the new structure is designed to streamline the selection process for the customer.
Download the brochure now, or read on to find out more about the changes we’ve made, and how our Industrial Division can support your industrial applications.
ULTRA-HYD: Hydraulic Efficiency & Reliability
Modern hydraulic systems are subject to increased operational demands – running longer, hotter, and under higher pressures. The impact of unplanned downtime continues to rise, making fluid selection more critical than ever. In response, ULTRA-HYD offers one of the most complete and versatile hydraulic fluid portfolios available:
- ULTRA-HYD HVI & HVI LL – High-viscosity-index fluids for consistent performance in variable conditions, available in standard and long-life types
- ULTRA-HYD HLP – Mineral-based fluids for long service life and robust protection
- ULTRA-HYD ZF & ZF LL – Zinc-free fluids for OEM compliance and environmentally sensitive operations, available in standard and long-life types
- ULTRA-HYD LL – Long-life fluids using Group II base oils for extended maintenance intervals
- ULTRA-HYD HLPD – Detergent-based fluids suited to moisture-prone or contaminated environments
- ULTRA-HYD BIO – Biodegradable fluids for sustainability-focused applications
- ULTRA-HYD BIO-SYN FR, HFA-S, HFC, HFDU, HFDR – Fire-resistant options, including FM Approved formulations
- FOOD GRADE & PRO-FOOD PAO – NSF H1-registered fluids for hygienic, cleanroom, or food-related use
- ULTRA-HYD FLYBRID HVI – Fully synthetic fluids designed for extreme operational conditions
Featured Product Range: ULTRA-HYD HVI LL
Leading the ULTRA-HYD range is ULTRA-HYD HVI LL, Rock Oil’s most advanced high-viscosity-index, long-life hydraulic fluid to date. Available in multiple viscosities, this formulation combines premium Group II base oils with shear-stable viscosity modifiers to deliver:
- Up to 8.5% increase in efficiency
- A 2.7% reduction in fuel consumption
- 17°C decrease in operating temperature
With OEM approvals and outstanding laboratory performance data, ULTRA-HYD HVI LL sets the benchmark for efficient, high-performance hydraulic lubricants.
Introducing the Rock Oil Industrial Division
Supporting the ULTRA-HYD range is the Rock Oil Industrial Division – a specialist team dedicated to assisting business customers across industrial sectors. The division provides targeted expertise, technical insight, and responsive support to ensure all hydraulic applications are matched with the most effective products, while also helping to optimise overall fluid-use strategy and operational efficiency.
Proven Performance, Now Easier to Navigate
The new ULTRA-HYD brochure reflects Rock Oil’s commitment to clarity and technical excellence, featuring visual aids and comparative product data included to support the selection process for engineers, procurement managers, and maintenance teams.
Whether the priority is operational efficiency, environmental responsibility, or maintenance optimisation, ULTRA-HYD provides a proven, high-performance range for industrial hydraulic applications.
Download the ULTRA-HYD brochure or contact the Rock Oil Industrial Division for order information and expert advice.