Atlas Copco 2908850101 Roto Z Fluid 20L Oil Free Screw Compressor Lubricant

Atlas Copco genuine 2908 8501 01 Roto Z Fluid is a specialized mineral-based lubricant engineered specifically for the mechanical requirements of Atlas Copco Z series oil-free screw compressors. Unlike oil-injected compressors, where oil cools and seals the compression chamber, oil-free rotary screw compressors require lubricant strictly for driving gears, timing gears, and high-speed rotor bearings.

Using generic industrial gear oils or standard hydraulic fluids can lead to thermal breakdown, carbon varnishing on precision timing gears, and premature bearing cage failure under continuous high-speed rotation. Roto Z Fluid is formulated to prevent these failure modes and deliver reliable long-term protection.

• Application-specific formulation: Designed for Atlas Copco ZR, ZT, ZA, and ZE oil-free screw and tooth compressors, delivering exceptional thermal stability and long-lasting lubrication performance.
• Advanced anti-wear and extreme-pressure additives: Protect precision gear teeth from microscopic scuffing and pitting under high mechanical loads.
• Superior anti-foaming characteristics: Maintain a continuous hydrodynamic oil film across high-speed journal and thrust bearings without air entrapment.
• Thermal oxidation resistance: Prevents sticky varnish deposits and sludge formation in gearboxes, oil coolers, and internal lubrication galleries.
• Corrosion inhibitors: Shield internal steel gears and copper oil cooler tubes from condensation moisture that accumulates during intermittent unloading cycles.
• Seal compatibility: Fully compatible with factory elastomeric shaft seals and carbon ring assemblies, preventing seal swelling or embrittlement that could allow oil migration into oil-free compression chambers.

As one of the most professional Atlas Copco suppliers from China, we have focused on 100% genuine Atlas Copco products for more than 19 years. Our professional engineers provide 24-hour technical support and on-site service. We operate a warehouse of over 4,000 square meters with 80% of parts in stock for quick delivery. First-hand sourcing, competitive pricing, and a dedicated service team make us a trusted Atlas Copco supplier.