In short: crushers, ball mills and kiln drives hit their gearboxes with sudden shock loads that break the oil film and pit the gear teeth. A synthetic gear oil with high film strength keeps the teeth apart. BTGC supplies Royal Purple gear oils with Synerlec additive technology, stocked in the Kingdom.

A gearbox on a phosphate crusher in the Northern Borders or a kiln drive in a cement plant on the Gulf coast lives a hard life. Loads arrive as shocks, not steady torque. Ambient temperature pushes the oil towards its limit. Dust finds its way in. The usual result is micropitting on the tooth flanks, then spalling, then a gearbox change in the middle of a production run.

What a shock load does to the oil

Gear teeth never touch directly in a healthy gearbox; a film of oil, thinner than a hair, carries the load. When a rock jams a crusher or a mill starts under load, the tooth pressure spikes. A conventional oil film collapses, metal touches metal, and a tiny surface fatigue crack forms. Repeated thousands of times a day, those cracks become micropitting: a dull grey band on the flank that grows until teeth spall.

Three failures, one cause

How a high film strength synthetic oil answers it

Royal Purple's Synerlec additive technology forms an ionic bond with the metal surface. The film responds to pressure with more strength, not less, so it stays in place under a shock load. The catalogue states film strength up to 400 % tougher than conventional oils. The practical effects BTGC customers look for:

• No dry starts: the film clings to the teeth during a stop

• Lower operating temperature, so longer oil life in a 50 °C ambient

• Rapid water separation, which matters in washed-down plants and humid coastal sites

• Longer drain intervals and fewer gearbox changes

Royal Purple from BTGC

Royal Purple of Texas, USA, makes synthetic industrial lubricants built around Synerlec. The range BTGC supplies in the Kingdom covers:

• Max-Gear and Synergy severe service gear oils for enclosed gearboxes

• Thermyl-Tuff open gear lubricant for girth gears, draglines and skid rails

• Thermyl-Glyde worm gear oil for high-torque gearboxes

• Synfilm GT and Synfilm Recip for pumps, turbines and compressors

• Barrier Fluid FDA for mechanical seals

Applications in the BTGC catalogue are mining crushers and mills, cement kilns, steel mills and petrochemical rotating equipment. See our page for Royal Purple in Saudi Arabia and the full lubrication and reliability offer.

Lube services around the oil

BTGC does not only supply the oil. Its lube services team carries out lubrication audits, oil filtration to Royal Purple's ISO 14/13/11 cleanliness standard, colour-coded tagging to stop cross-contamination, and predictive oil analysis. For a mining fleet this is how a gearbox change becomes a planned event.

BTGC support in Dammam, Jubail and Yanbu

BTGC supports mining and minerals and cement customers across the Kingdom, with lubricant stock in Dammam. For a recommendation send the gearbox make and model, the OEM-specified viscosity grade, the duty and the current oil.

Questions buyers ask

Is it approved by the gearbox OEM? Royal Purple oils carry OEM approvals listed on the product datasheets; BTGC checks the specific gearbox before recommending a grade.

Can I switch without flushing? Royal Purple oils are compatible with mineral and most synthetic oils; a drain and fill is normal, a full flush is rarely needed.

Is it stocked locally? Yes, common grades are held in Dammam.

Contact BTGC

Email info@btc-ksa.com or call +966 13 856 0528. Branches: Dammam, Jubail and Yanbu. Request a quote.