380603630 XCMG GR2605 motor grader rear window

380603630 XCMG GR2605 motor grader rear window

The rear window of the XCMG GR2605 grader (model 380603630) is an integral part of the ROPS/FOPS cab, providing rear visibility and passive protection. It is manufactured in strict accordance with XCMG’s original design standards, GB 9656 Motor Vehicle Safety Glass Standard, GB/T 25684.8 Earthmoving Machinery Grader Safety Requirements, and ISO 3449 FOPS Falling Object Protection and ISO 3471 ROPS Rollover Protection Specifications. Specifically designed for the GR2605 grader’s extra-large luxury cab, it is perfectly suited for extreme operating environments such as highway construction and maintenance, airport runway grading, open-pit mine stripping, and large-scale water conservancy earthwork filling, characterized by high dust levels, gravel impacts, large temperature differences between day and night, strong ultraviolet radiation, and severe noise pollution. As a crucial window for operators to observe the rear of the machine and the work area, it combines multiple functions such as high-definition, distortion-free vision, impact resistance and penetration protection, heat insulation and anti-glare, sealing and leak prevention, noise reduction and heat preservation. It effectively solves the problem of rear observation on long-bodied graders, while also protecting the driver from injuries caused by falling objects and gravel. It is a high-quality original factory replacement assembly for GR2605 grader rear window glass that has cracks, damage, aging of sealant, hardening of sealing strips, air and water leaks, and failure of sound and heat insulation, eliminating the need for piecemeal purchase of parts.

The rear window features a double-layered laminated tempered safety glass structure. The outer layer is 6mm high-hardness tempered glass (surface hardness ≥7H, impact resistance 5 times that of ordinary glass), sandwiched with a 0.76mm PVB explosion-proof film. Even if the glass breaks due to a strong impact, it will not produce sharp fragments but will remain in a unified state, preventing secondary injuries. The inner layer is 4mm high-definition float glass with a double-layer Low-E heat-insulating and anti-glare coating. Visible light transmittance ≥70%, ultraviolet light blocking rate ≥99%, and infrared light blocking rate ≥75%. This effectively reduces the temperature rise inside the cab caused by direct sunlight and avoids glare from strong rear lights during nighttime operations, ensuring clear observation. The overall light transmission is uniform and without optical distortion, ensuring accurate distance judgment within a 2-8m range behind the grader.

The rear window is equipped with a genuine EPDM composite sealing strip, manufactured using a microwave vulcanization process. It features an internal metal skeleton for enhanced rigidity and a finely textured outer lip structure, achieving a double seal with the rear panel of the cab. With an IP67 protection rating, it completely prevents dust, rainwater, and mud from entering the cab. It also boasts excellent high and low temperature resistance (-40℃ to 80℃), and will not harden, shrink, or crack even after long-term outdoor exposure. The inner side of the sealing strip includes a high-density foam buffer layer, significantly reducing vibration and noise during operation (noise reduction ≥18dB(A)), improving driving comfort. The assembly is equipped with stainless steel mounting clips that match the original vehicle’s mounting holes 1:1, eliminating the need for additional drilling. The product’s glass contour, mounting reference surface, clip holes, and sealing strip grooves are all precisely matched 1:1 with the pre-reserved positions on the rear panel of the XCMG GR2605 original cab. The contour tolerance is controlled within ±0.1mm, and the hole tolerance is ±0.03mm. No welding, cutting, or modification of the vehicle body structure is required. A single person can complete the overall disassembly and installation with a vacuum suction cup. After installation, it fits perfectly with the curved surface of the cab sheet metal, resulting in a low wind resistance coefficient and no whistling wind noise during high-speed operation. When used with XCMG’s specified polyurethane structural sealant, it forms a permanent seal after curing, eliminating the risk of air and water leakage after long-term operation.

This rear window assembly has passed multiple authoritative tests and certifications: GB 9656 Safety Glass Impact Resistance and Shotgun Bag Test (227g steel ball dropped freely from a height of 1m without penetration, PVB film not peeling off); 500-hour salt spray + UV aging test; ISO 3449 FOPS Falling Object Protection Impact Test (200kg weight dropped from a height of 3m, glass not penetrated, cab structure no deformation); ISO 3471 ROPS Rollover Protection Crushing Test; it also meets GB/T 25684.8 Grader Rear Window Visibility and Safety Installation Requirements; the Low-E coating has passed the testing of the National Glass Quality Supervision and Inspection Center, and its heat insulation and anti-glare performance meets the standards; the EPDM sealing strip has passed ozone resistance, aging resistance, and compression set tests.

Core Technical Parameters

Part Model: 380603630
Part Name: Rear Window (One-piece laminated tempered glass rear window assembly)
Applicable Model: XCMG GR2605 motor grader
Compatible Components: GR2605 ROPS/FOPS certified luxury cab rear observation window
Material: 6mm tempered outer glass + 0.76mm PVB explosion-proof film + 4mm Low-E coated inner glass, EPDM composite sealing strip (built-in metal frame), stainless steel mounting clips
Process: Double-layer laminated tempered glass, vacuum magnetron sputtering Low-E coating, microwave vulcanization sealing strip molding, precise assembly
Core Parameters: Visible light transmittance ≥70%, UV rejection ≥99%, Infrared rejection ≥75%, Protection rating IP67, Temperature range -40℃ to 80℃, noise reduction ≥18dB (A)
Safety Certifications: GB 9656 Safety Glass Standard, ISO 3449 FOPS, ISO 3471 ROPS, GB/T 25684.8 Grader Safety Standard
Features: Explosion-proof and splash-proof, Low-E heat insulation and anti-glare, IP67 sealing, original 1:1 fit, noise reduction and heat insulation, impact resistance and wear resistance
Functions: Clear observation of the rear of the machine, protection against gravel and falling objects, heat insulation and anti-glare for improved comfort, airtight and water-proof, ensuring passive safety of the cab

Core Advantages

Original molded integrated assembly, no need to purchase additional parts; double-layer laminated tempered glass + PVB film, completely eliminating secondary injuries from broken glass; Low-E coating combines light transmission and heat insulation, cooling in summer and heat preservation in winter; EPDM double sealing + The reinforced frame prevents hardening and air leakage even under extreme conditions; it boasts comprehensive authoritative safety certifications, passing both ROPS and FOPS dual protection tests; precise fit allows for quick replacement by a single person, significantly reducing downtime and lowering construction costs.

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1. Right rear window (380603622)
2. Front upper window (380603624)
3. Front lower window (380603597)
4. Left rear window (380603634)
5. Rear window (380603630)

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