Dongfeng FAST Gearbox Assy parts Voith hydraulic retarder filter element VR115CT

Built to eliminate contaminants from the retarder’s hydraulic oil, this filter element delivers exceptional purification performance using a multi-layer composite filter media. The 5μm absolute filtration accuracy captures 99.5% of particles (e.g., metal shavings, rubber debris, dust) larger than 5μm—preventing wear to the retarder’s rotor, stator, and control valves. The filter media’s high dirt-holding capacity (120g) extends service intervals to 20,000km, 30% longer than standard filters. Its gradient pore structure (coarse outer layer, fine inner layer) ensures efficient filtration without excessive pressure drop (≤0.2MPa at rated flow), maintaining stable hydraulic oil supply to the retarder. This precision filtration reduces retarder failure rates by 40% and extends its service life by 50,000km

Engineered to withstand the high-pressure environment of Voith hydraulic retarders (working pressure up to 2.5MPa), the filter element features a robust reinforced structure. The filter media is supported by a galvanized steel inner skeleton (1.2mm thickness) with 12 radial ribs, preventing media collapse under extreme pressure or flow surges. The outer protective cage (polypropylene material) resists mechanical impact and deformation, while the thermally bonded filter media edges eliminate fiber shedding—avoiding secondary contamination of the hydraulic system. The bayonet connection (PA66 plastic housing) ensures secure installation with a torque resistance of ≥50N·m, preventing dislodgment during vehicle vibration (5-2000Hz, ISO 16750-3)

Designed to endure the harsh operating conditions of commercial truck retarders, the filter element exhibits exceptional resistance to temperature and corrosion. The filter media (glass fiber + polyester blend) maintains filtration performance at operating temperatures from -40℃ (northeast China winters) to 120℃ (retarder peak temperature), passing 500 thermal cycles (-30℃ to 110℃) without media degradation. It is compatible with all common hydraulic oils (mineral oil, synthetic oil) used in Voith retarders, resisting chemical corrosion and swelling (volume change ≤2% after 72-hour oil immersion). The galvanized steel skeleton and PA66 housing resist rust and aging, ensuring reliable operation for over 20,000km in dusty, humid, or high-salt environments

Optimized for efficient fleet maintenance, the filter element features a user-friendly design that simplifies replacement and reduces downtime. The bayonet connection allows tool-free installation and removal—completing the process in 10 minutes without specialized tools. The filter housing includes a built-in pressure differential indicator (activating at 0.3MPa) that signals when replacement is needed, avoiding premature or delayed service. Each filter comes pre-assembled with a nitrile rubber sealing ring, eliminating the need for separate gasket sourcing. Clear labeling (“IN”/“OUT” and replacement interval reminders) prevents installation errors, while the lightweight design (280g) simplifies handling. A single technician can service multiple vehicles efficiently, reducing maintenance costs and ensuring retarder system reliability