Mining and Quarrying Lubricants
Heavy loads, dust, water and long operating hours put mining machinery under constant pressure. Rock Oil supplies lubricants for mobile plant and fixed processing equipment across surface mining, underground operations and quarrying, helping operators protect machinery and plan maintenance with confidence.
ULTRA-HYD: hydraulic performance under pressure
From excavators and loaders to drilling equipment and hydraulic power units, the right fluid helps maintain consistent response and protect pumps, valves and other working components. The ULTRA-HYD range brings together mineral, long-life and synthetic options for different operating demands.
For mobile plant and changing temperatures
ULTRA-HYD HVI provides multigrade hydraulic lubrication where outdoor equipment experiences cold starts and changing working temperatures. ULTRA-HYD HVI LL combines high viscosity index performance with Group II base oils and shear-stable viscosity modifiers, supporting fluid stability and oxidation resistance through demanding duty cycles.
For continuous operation and specialist systems
- ULTRA-HYD HLP: mineral hydraulic oils for general hydraulic applications requiring wear, corrosion and oxidation protection.
- ULTRA-HYD LL: Group II-based long-life fluids for systems where oxidation resistance and maintenance planning are priorities.
- ULTRA-HYD ZF and ZF LL: zinc- and ash-free formulations for equipment requiring this additive chemistry, with a long-life option for demanding service.
- ULTRA-HYD HLPD: detergent hydraulic fluids that suspend contaminants and emulsify water in systems specified for this type of fluid.
- ULTRA-HYD FLYBRID HVI: fully synthetic hydraulic fluid for high-load systems and a wide operating temperature range.
Select the viscosity and fluid technology around the equipment specification, operating temperature and service requirements. Our technical team can help identify the right option.
Engine and gear protection across the site
TRUCK-GUARD: heavy-duty diesel engines
Haul trucks, excavators, loaders and diesel-powered processing plant need engine oils matched to their engine technology and working conditions. The TRUCK-GUARD range includes mixed-fleet, low-ash and extended-drain options for suitable off-highway applications.
- TRUCK-GUARD 10W-30, 10W-40 and 15W-40: heavy-duty mixed-fleet engine oils.
- TRUCK-GUARD LS 10W-40: low-ash, synthetic-based oil described in the brochure for agricultural and off-highway engines.
- TRUCK-GUARD LS 10W-30 and 15W-40: low-ash, semi-synthetic options for suitable diesel engines.
- TRUCK-GUARD PLUS and ELITE LS: options for equipment with manufacturer-supported extended service intervals.
For engines with exhaust after-treatment, match the oil to the required specification as well as the viscosity grade.
INDUS-GEAR: enclosed industrial gear drives
Crushers, conveyors, mills and other processing machinery rely on heavily loaded gear drives. INDUS-GEAR offers mineral and synthetic lubricant technologies for enclosed industrial gear systems.
- INDUS-GEAR M CLP: fortified mineral industrial gear oils in a broad choice of viscosity grades.
- INDUS-GEAR S PAO CLP: heavy-duty synthetic PAO gear fluids for applications requiring this technology.
- INDUS-GEAR S PAG: synthetic polyalkylene glycol fluids for gear systems specified for PAG lubrication.
Our technical team can help match the base fluid and viscosity to the gearbox, load and operating temperature, including compatibility and changeover guidance.
Specialist fluids for site requirements
Fire-resistant hydraulic fluids
Underground operations and equipment exposed to heat or ignition risks can call for a specialist hydraulic fluid. The ULTRA-HYD brochure includes water-containing and water-free technologies:
- ULTRA-HYD HFA-S: synthetic water-mix fluid.
- ULTRA-HYD HFC FR: water-glycol fluid.
- ULTRA-HYD BIO-SYN FR and FLUIDO FR: synthetic ester-based HFDU options.
- REOLUBE HYD: phosphate ester-based HFDR fluids.
Speak to our technical team about the equipment requirements, seal compatibility and changeover procedure.
Hydraulic options for sensitive locations
Where mining, quarrying or remediation equipment works near soil or watercourses, the ULTRA-HYD BIO portfolio offers a choice of fluid chemistries.
- ULTRA-HYD BIO V: vegetable oil-based hydraulic fluids.
- ULTRA-HYD BIO ES: synthetic ester-based fluids.
- ULTRA-HYD BIO PAO: PAO-based hydraulic fluid.
- BIO SYN 46 HYDRAULIC OIL: biodegradable synthetic ester fluid.
- ULTRA-HYD BIO-SYN FR: biodegradable, fire-resistant ester fluids.
We can help you select a product around the machinery specification and the environmental requirements of the site.
Supporting maintenance and machinery care
Workshop and machine lubrication
The INDUS range also supports maintenance equipment. INDUS-MACHINE provides machine and light slideway oil options, while MAXWAY XT is formulated for machine tool slideways.
For bearings, pins, bushes and other grease-lubricated components, ask our technical team about suitable products for the load, temperature, water exposure and lubrication system.
Oil and grease condition monitoring
Rock Oil’s oil and grease analysis kits help operators monitor lubricant condition and identify contamination or wear in critical machinery.
Combine appropriate testing with clean storage, careful handling and planned sampling to support maintenance decisions across engines, hydraulic systems, gear drives and bearings.
Find product information and technical advice
Browse our product catalogue filtered for mining products for product specifications and available Technical Data Sheets (TDS). The brochures alongside this page provide an overview of the hydraulic, engine and industrial gear ranges.
For up-to-date information and application advice, speak to our dedicated technical team. Share the equipment make and model, required specifications, operating conditions and current lubricant so we can help with selection and any planned changeover.
Keep your mining operation moving
From mobile plant to fixed processing equipment, Rock Oil can help you build a practical lubrication plan around your machinery and site conditions.
Browse our product catalogue filtered for mining products for specifications and available TDS, or speak to our dedicated technical team for current information and advice.
- Match products to your equipment
Discuss hydraulic fluids, diesel engine oils and enclosed gear lubricants for your fleet and processing plant. - Plan specialist fluid selection
Get guidance on fire-resistant and biodegradable options, compatibility and changeovers. - Support maintenance decisions
Talk through operating conditions, service requirements and lubricant analysis for critical machinery.
Heavy-duty expertise. British manufacture.
Rock Oil brings together hydraulic, engine and industrial lubrication expertise to support the demands of mining and quarrying. Our products are developed and manufactured in Britain, with a broad portfolio covering both mobile machinery and fixed equipment.
Our dedicated technical team can help turn equipment specifications and site conditions into informed product choices, supported by current product information and advice on maintenance and lubricant monitoring. Contact Rock Oil to discuss your operation.
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