Key Advantages
1. OEM Standard Full-model Precise Compatibility : Strictly manufactured in accordance with Caterpillar’s original technical drawings, precision parameters and sealing design requirements, the size, cross-section structure, hardness and sealing contact surface of the ring are 100% matched with the key sealing parts of the hydraulic systems of 120/135/140/160 graders. No secondary trimming, grinding or modification is required for installation, ensuring a seamless fit with original machine parts and factory-level sealing performance for all applicable models.
2. High-performance Oil-resistant Sealing Material : Adopts Caterpillar OEM standard industrial-grade high-quality oil-resistant rubber (NBR/FKM optional), with excellent oil resistance, high pressure resistance, wear resistance and anti-aging performance. It can resist long-term erosion of hydraulic oil and its additives, adapt to the harsh construction environment of heavy load, strong vibration and dust, and is not prone to hardening, cracking, swelling or deformation after long-term use.
3. Ultra-precise Molding & Burr-free Sealing Surface : Processed by high-precision mold vulcanization and integral molding technology, the product has an extremely small dimensional tolerance and a smooth, burr-free sealing surface with uniform material density. It ensures close and tight contact with the metal mating surface of hydraulic components for all grader models, effectively avoiding hydraulic oil leakage caused by dimensional deviation and surface defects.
4. Strong Adaptability to Harsh Construction Conditions : The sealing material has excellent high and low temperature resistance and vibration resistance, and can work stably in a wide temperature range. It will not lose elasticity and sealing performance due to extreme cold, high temperature or continuous mechanical vibration of the graders during operation, and maintains structural integrity and stable sealing performance for a long service life.
5. Universal Design Reduces Inventory & Management Costs : As a universal sealing ring for four core Caterpillar motor grader models, it realizes the unified configuration of spare parts, eliminates the trouble of purchasing and storing separate sealing rings for different grader models, and significantly reduces the inventory pressure and spare part management costs of maintenance and operation enterprises.
6. Simple Installation & Cost-saving Maintenance : Adopts a lightweight and integrated structural design, conforming to Caterpillar’s original assembly specifications for this series of graders. It can be installed and replaced quickly by direct press-fit with conventional maintenance tools without special professional equipment. Timely replacement of this sealing ring avoids serious damage to high-value host hydraulic components caused by seal failure, greatly shortening on-site maintenance time and reducing the overall maintenance cost of the graders.
