The genuine XCMG 380905122 Blade is a heavy‑duty cutting edge designed for motor grader moldboard assemblies on XCMG GR series graders. This OEM 380905122 blade is manufactured from high‑carbon, through‑hardened boron steel (400‑450 HBW) to provide exceptional wear resistance and impact toughness. The blade features a precision‑ground cutting profile and countersunk plow bolt holes for flush mounting to the scraper body. Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, the XCMG 380905122 blade delivers consistent material penetration, efficient load shedding, and extended service life in road grading, ditching, snow removal, and leveling applications.
The blade is the primary wear component that contacts the ground and moves material. A worn or chipped blade reduces grading efficiency, causes poor surface finish, and increases fuel consumption. Replacing a worn blade with genuine XCMG 380905122 restores original cutting performance, reduces operator fatigue, and protects the moldboard structure from direct abrasion.
This straight cutting edge is available in various lengths and hole patterns to match XCMG grader models. The 380905122 blade can be rotated (top to bottom) or reversed (front to back) to maximize usable wear life. XCMG recommends keeping multiple blades in stock for quick field changes.
| Parameter | Specification |
|---|---|
| OEM Number | 380905122 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Cutting Edge / Blade / Moldboard Wear Strip |
| Material | High‑carbon boron steel (B27 or equivalent), through‑hardened |
| Hardness (Core & Surface) | 420‑480 HBW (approx. 45‑50 HRC) |
| Length (Nominal) | 1830 mm (6 ft) – also available 1220 mm, 2440 mm variants |
| Width (Height) | 150 mm ±1.5 mm |
| Thickness | 16 mm (5/8″) or 19 mm (3/4″) depending on model |
| Bolt Hole Pattern | 19 countersunk holes, Ø20.5 mm, 95 mm spacing, M20 plow bolts |
| Cutting Edge Bevel | 45° single bevel, 30° double bevel (optional) |
| Straightness Tolerance | ±1.0 mm over full length (EN 10034) |
| Surface Finish | Shot‑blasted + oil coating, or painted optional |
| Charpy Impact (V‑notch, -20°C) | ≥ 27 J (ensures resistance to rock impacts) |
| Reversible / Rotatable | Yes, 4‑wear edges (both sides and both ends) |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 motor graders |
| Superseded Part Numbers | 380905100, 380905108, 380905115 |
The 380905122 blade is the key element that determines grading accuracy and productivity. It cuts, moves, and spreads material to create a flat, uniform surface.
A sharp, straight blade reduces rolling resistance, lowers fuel consumption, and produces a smoother finish. Worn blades create washboarding and require multiple passes.
The blade also protects the moldboard frame from abrasive wear. Replacing a worn blade with genuine 380905122 restores original cutting performance and extends scraper body life.
Each 380905122 blade is rolled from continuous cast boron steel slab, then heat‑treated through a quench‑and‑temper line to achieve uniform hardness of 420‑480 HBW across the entire section.
The steel contains micro‑alloys of boron, chromium, and titanium to refine the grain structure and increase toughness. This prevents chipping and breakage when striking rocks or frozen ground.
XCMG performs 100% hardness testing using a portable Leeb hardness tester. Each blade is also proof‑loaded to verify straightness and bolt hole alignment.
Lower the moldboard to the ground. Use a 1‑inch impact wrench to remove the plow bolts. Wear heavy gloves – blades are heavy and have sharp edges.
Lift the old blade off using a hoist or two persons. Clean the mounting face on the scraper body. Position the new 380905122 blade with the bevel facing the direction of travel.
Install new plow bolts with serrated nuts. Torque in a crossing pattern to 250 Nm (M20). Re‑torque after 10 hours of operation.
Replace when the blade is worn to less than 50% of original thickness (8 mm), or when the cutting edge is rounded over causing poor penetration. Also replace if chipped, cracked, or bent.
Rotate the blade (top to bottom or front to back) to use all four wear edges before disposal. Keeping spare 380905122 blades on hand minimizes downtime.
Uneven wear across the blade length indicates a bent moldboard or misaligned circle. Check scraper body flatness and circle wear strips if wear is localized.
Inspect blade bolts every 500 hours – loose bolts allow blade movement, causing bolt hole elongation. Replace bolts every second blade change.
For abrasive materials (sand, gravel), consider using carbide‑tipped or overlay hardfaced blades. For snow, use smooth bevel blades. XCMG offers alternative profiles.
Genuine XCMG 380905122 blades are backed by a 12‑month warranty against material defects. Stocked in regional warehouses: Houston, Rotterdam, Dubai, Shanghai.
Air freight delivery within 3‑7 business days for urgent needs; sea freight for bulk orders (containers of 50+ blades). Volume discounts available.
Aftermarket blades often use mild steel or have poor heat treatment, leading to rapid wear and frequent changes. Genuine XCMG 380905122 delivers up to 40% longer wear life. Order genuine today and reduce blade replacement frequency.
Don’t let a dull blade compromise your grading efficiency. The 380905122 blade is a direct investment in fuel savings, finish quality, and operator morale. Keep spare blades in your service truck and replace at the first sign of edge rounding.
Upgrade your motor grader’s cutting performance with XCMG genuine blades. Through‑hardened boron steel, precision countersunk holes, and 4‑wear edges – order the 380905122 Blade now and achieve faster, smoother grading with longer wear life.
