Genuine XCMG Da22 Dust Seal with OEM number 860500602 (dimensions 40×48.6×5.3 mm) is a critical component designed for motor grader pivot joints and hydraulic cylinder rods. The advanced sealing element 860500602 effectively blocks dust, sand, mud, and debris from entering the main seal area, extending the service life of bearings and bushings. This exclusive XCMG dust seal is manufactured from high-grade polyurethane with exceptional abrasion resistance.
By installing the OEM 860500602 Da22 dust seal, you prevent premature wear of critical moving parts, reduce lubricant contamination, and minimize downtime. The seal’s specially designed lip geometry provides a dynamic scraping action that actively removes contaminants during each stroke cycle, ensuring reliable operation in the harshest environments.
| Parameter | Specification / Value |
|---|---|
| OEM Number | 860500602 |
| Brand | XCMG (Original Genuine Part) |
| Product Type | Da22 Dust Seal / Wiper Seal / Excluder Seal |
| Dimensions (ID × OD × H) | 40 mm × 48.6 mm × 5.3 mm |
| Material | High-performance Polyurethane (PU) – 95 Shore A |
| Operating Temperature | -40°C to +100°C |
| Max. Surface Speed | 1.5 m/s |
| Lip Design | Single lip with sharp scraping edge + metal insert |
| Hardness (Shore A) | 93 ± 3 |
| Tensile Strength | ≥ 35 MPa |
| Elongation at Break | ≥ 450% |
| Abrasion Resistance (DIN 53516) | ≤ 35 mm³ |
| Compatible XCMG Models | GR165, GR215, GR300, GR350, GR2405, GR180, GR2153 |
| Application Zones | Hydraulic cylinder rods, kingpin joints, articulation pins, steering knuckles |
| Standards | ISO 6195, ASTM D2000, XCMG factory specification |
The XCMG 860500602 Da22 dust seal features a unique hydrodynamic scraping lip that removes adhered particles from the reciprocating rod surface. Its polyurethane construction withstands ozone, UV radiation, and wide temperature swings common in desert or frozen construction sites.
Compared to standard nitrile wipers, this genuine seal offers 3x higher abrasion resistance and superior extrusion resistance under high-pressure spikes. Finite element analysis optimized the lip profile to reduce friction by 22%, lowering hydraulic system energy consumption and heat generation.
On a motor grader, the 860500602 dust seal is primarily installed on circle turn hydraulic cylinders, blade lift cylinders, and articulation pivot joints. It acts as the first line of defense against fine silica dust and clay, preventing lapping wear on rod chrome surfaces and main hydraulic seals.
In mining and heavy earthmoving, operators report a 45% reduction in rod seal failures after upgrading to OEM Da22 dust seals. The seal’s compact 5.3mm axial height allows easy retrofitting into existing gland designs without housing modifications.
Before installing the 860500602 dust seal, deburr the housing groove and chamfer all sharp edges. Lubricate the seal lip with clean hydraulic oil. Use a proper installation tool to press the seal evenly; avoid twisting or rolling the lip.
Ensure the scraping edge faces the external environment. During routine grader service (every 500 hours), inspect the dust seal for cracks, hardening, or excessive lip wear. Replace immediately if damaged. Always pair OEM 860500602 with genuine XCMG rod seals for complete cylinder reliability.
Generic dust seals often use recycled TPU or inferior rubber that hardens quickly. The genuine 860500602 retains flexibility even at -40°C. Laboratory cyclic tests (1 million strokes at 1.0 m/s) show zero lip cracking on XCMG seals, while generic alternatives fail after 300k cycles.
Genuine XCMG seal also maintains constant lip contact force due to precision molding, eliminating bypass leakage paths. By investing in OEM 860500602, maintenance teams reduce rod scoring, avoid costly cylinder rechroming, and achieve lower total cost of ownership.
Each 860500602 dust seal is produced under XCMG’s ISO 9001:2015 certified facility with 100% dimensional inspection. Raw polyurethane is sourced from global chemical leaders. Every batch undergoes accelerated weathering tests (UV + ozone chamber) and dynamic wear tests per ASTM D3389.
No seal leaves factory without passing leakage and lip integrity checks. Full traceability from material lot to finished product ensures consistent quality for fleet operators worldwide. XCMG provides a 12-month warranty against manufacturing defects.
OEM 860500602 supersedes older part numbers 860500600 and 860500601A. It is fully compatible with original XCMG cylinder gland designs since 2010. Check your machine’s parts manual: models GR215, GR300, and GR350 use this exact dust seal in all steering and lift cylinders.
For complete overhaul, order the dust seal together with buffer seal 860500604 and rod seal 860500605. Bulk discounts available for dealers. Always verify your machine serial number prefix for exact fitment.
Q: Can 860500602 be used with bio-hydraulic oils? A: Yes, polyurethane is compatible with HEPG, HEES, and mineral-based fluids. Avoid strong acids.
Q: What is the shelf life of this dust seal? A: 6 years when stored in original packaging at 5-30°C, away from ozone and direct light.
Q: How to identify wear on the Da22 dust seal? A: Visible lip rounding, cracks, or external dirt accumulation inside the groove indicate replacement needed.
Q: Is the metal insert included? A: Yes, the 860500602 dust seal incorporates a zinc-plated steel reinforcement ring for press-fit stability.
*All specifications based on XCMG engineering standards. OEM 860500602 is the official dust seal for GR-series motor graders. No printed contact details or form fields.
