Castrol Gear Oils AP | Alpha SP, Optigear Distributor

Industrial Gear Oils — Alpha SP, Optigear, Tribol Ranges

From conventional EP gear oils to synthetic PAO and PAG oils for extended drain intervals and extreme operating conditions.

Quick Answer

Castrol Alpha SP (mineral CKC), Alpha HC (hydrocracked), Optigear BM (CKD-grade EP), Optigear Synthetic A (PAO synthetic) and Optigear Synthetic X (severe-duty synthetic) — covering every industrial gearbox application from extruder reducers and cement-mill drives to wind-turbine main gearboxes. ISO VG 100 through 680 available across the range. Choose CKC for general industrial reducers, CKD for heavy-duty service with micropitting concern, CKE-class synthetic for severe-duty extended-drain applications.

Product Range

Alpha SP 150 / 220 / 320 / 460

Mineral EP gear oil

Industry-standard mineral-based extreme-pressure gear oil. FZG 12 pass, full ISO VG range.

Optigear BM 220 / 320

Mineral with micropitting protection

Premium mineral gear oil with DIN 51517-3 micropitting performance for heavily loaded gears.

Optigear Synthetic A 320

PAO synthetic gear oil

Polyalphaolefin synthetic for extended drain, wide operating temperature and wind-turbine gearboxes.

Tribol 1710

PAG synthetic worm-gear oil

Polyglycol-based oil for worm drives — reduces friction in steel-bronze pairings.

Tribol 800

Heavy-duty synthetic

Synthetic for extreme-temperature and heavily-loaded applications.

Why buy from Vasundhara Specialities

As the authorized Castrol industrial distributor for Andhra Pradesh, every drum and pail we supply is sourced directly from Castrol India’s Silvassa, Paharpur and Patalganga plants with full batch traceability. Our Bhimavaram warehouse stocks the complete industrial gear oils range for 48–72 hour delivery across AP, and our technical team is available on-site for application trials, coolant sampling, and training. Paired with our CoolantCare fluid management programme, you get not just a supplier but a lubrication partner committed to lowering your total cost of lubrication.

Frequently Asked Questions

Alpha SP vs Optigear Synthetic — when do I need synthetic?

Move to Optigear Synthetic when: (1) drain intervals need to exceed 8000 hrs, (2) ambient temperatures swing below 0°C or above 90°C, (3) gearbox has micropitting history, or (4) the OEM warranty specifies PAO. Otherwise Alpha SP is cost-effective and proven.

Can I mix PAO (Optigear) with PAG (Tribol 1710)?

No. PAG and PAO are not miscible — PAG drops out as a separate layer. Always flush the gearbox when switching between the two.