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XCMG 380900922 Clamping Plate – Precision Grader Fastening Component

XCMG 380900922 Clamping Plate – Heavy-Duty Grader Fastening Component

XCMG Clamping Plate 380900922
Clamping Plate
XCMG Прижимная пластина 380900922
Прижимная пластина
XCMG Placa de sujeción 380900922
Placa de sujeción

Secure clamping, absolute reliability. The genuine XCMG 380900922 Clamping Plate is a critical fastening component used in XCMG motor graders to secure cutting edges, wear strips, and structural attachments. OEM number 380900922 guarantees exact dimensional conformity and material strength for heavy-duty grading operations. Manufactured from high-carbon forged steel with precision ground surfaces, this clamping plate ensures consistent clamping force and vibration resistance under extreme loads.

Engineered for XCMG GR135, GR165, GR200, GR215, GR300 and GR350 graders, the 380900922 clamping plate meets original equipment torque specifications and wear resistance standards. Whether you are replacing worn moldboard components or rebuilding the grader blade assembly, choosing authentic XCMG clamping plates eliminates premature loosening and extends blade life. Each plate undergoes hardness testing and flatness inspection to ensure uniform pressure distribution.

Ideal for mining, highway construction, and heavy earthmoving, this clamping plate securely holds the grader’s cutting edge against the moldboard, preventing shifting and reducing downtime. The advanced heat treatment provides surface hardness of HRC 48-54 with a tough core, offering excellent wear resistance and impact toughness. Precision counterbores and chamfered edges simplify bolt alignment and installation.

Upgrade your grader’s blade retention system with the XCMG 380900922 Clamping Plate – a small component that dramatically improves cutting accuracy and reduces edge replacement frequency. Global contractors trust XCMG genuine parts for consistent quality, safety, and long service life.

Technical Specifications – Clamping Plate 380900922

ParameterValue / Detail
OEM Number380900922
Part NameClamping Plate (Moldboard Retention)
BrandXCMG Original Equipment
MaterialHigh-Carbon Forged Steel (42CrMo4 / SAE 4140 equivalent)
Surface FinishBlack oxide + anti-rust oil / Optional zinc plating
Hardness (HRC)48 – 54 HRC (surface hardened, core 28–32 HRC)
Overall Length (mm)380 mm ±0.5 mm
Overall Width (mm)95 mm ±0.3 mm
Thickness (mm)22 mm ±0.2 mm
Bolt Hole Diameter18.5 mm (clearance for M18 bolts)
Clamping Force (kN)≥ 85 kN (at 280 Nm bolt torque)
Weight per Unit5.6 kg ± 2%
Applicable ModelsXCMG GR135, GR165, GR200, GR215, GR300, GR350, GR2003
PackagingIndividual anti-corrosion bag, export carton (10 pcs/box)
CertificationISO 9001:2015, Material Test Report EN 10204 3.1

Key Engineering Features

Premium Forged Steel & Heat Treatment

The XCMG 380900922 clamping plate is drop-forged from 42CrMo4 steel, offering exceptional tensile strength and fatigue resistance. After precision forging, the plate undergoes through-hardening and tempering to achieve a uniform martensitic structure. Induction hardening on the contact surface provides a wear-resistant layer up to 2mm deep while maintaining a tough, shock-absorbing core.

Compared to generic cast or low-carbon steel plates, the genuine XCMG clamping plate exhibits 40% higher yield strength and 3x better impact resistance. This prevents permanent deformation under heavy grading loads and repeated bolt retightening cycles, ensuring consistent blade retention over thousands of operating hours.

Precision Machining & Dimensional Accuracy

All critical surfaces of the 380900922 clamping plate are CNC-machined to tolerances of ±0.1mm. The bottom face is ground to a flatness of 0.05mm, ensuring even pressure distribution across the cutting edge. Counterbores are precisely aligned with the moldboard bolt pattern, eliminating binding and simplifying field replacement. Each plate is 100% inspected using optical coordinate measurement machines (CMM).

The bolt holes feature a slight chamfer to guide fasteners and reduce stress concentration. This attention to detail reduces installation time by up to 30% and prevents thread galling, even in dirty field conditions.

Applications & Compatible XCMG Graders

The clamping plate 380900922 is specifically designed for XCMG motor grader moldboard assemblies. It works in conjunction with cutting edges, wear strips, and mounting bolts to secure the blade to the circle or drawbar. Compatible models include GR135, GR165, GR200, GR215, GR300, GR350, and the latest GR2003 series. For fleet owners, using OEM clamping plates ensures consistent blade alignment and reduces uneven wear.

Beyond standard grading, this clamping plate is also suitable for heavy snow removal and scarifier applications where impact loads are high. The robust design prevents the cutting edge from shifting or detaching, eliminating a common cause of premature blade loss and downtime.

Installation & Maintenance Best Practices

To install the 380900922 clamping plate, first clean the moldboard and cutting edge contact surfaces. Position the cutting edge against the moldboard, then place the clamping plate over the bolt holes. Use new XCMG-specified grade 10.9 bolts and hardened washers. Tighten in a crisscross pattern to 280 Nm, then re-torque after 2 hours of operation. Always replace clamping plates if they show signs of bending, cracking, or excessive wear on the bottom face.

Inspect clamping plates every 500 operating hours for corrosion or thread damage. Lightly lubricate bolt threads with anti-seize compound to prevent seizing in harsh environments. Storing spare clamping plates in a dry, coated condition extends their shelf life. When replacing cutting edges, always inspect the clamping plate’s contact face – regrind if necessary or replace if wear exceeds 1.5mm depth.

Quality Assurance & Genuine XCMG Advantage

Every XCMG 380900922 clamping plate is produced in ISO 9001:2015 certified facilities with full material traceability from the steel mill to finished part. Destructive and non-destructive testing (ultrasonic, magnetic particle) is performed on random samples from each batch. XCMG provides a 12-month warranty against manufacturing defects, including cracking or premature wear under normal use.

Counterfeit clamping plates often use lower-grade steel with inconsistent hardness, leading to rapid deformation or bolt hole elongation. Such failures can cause cutting edge loss and damage to the moldboard. Protect your investment by sourcing only verified 380900922 components from authorized XCMG distributors.

Why fleet owners trust XCMG 380900922: Forged strength, precision fit, superior clamping force, and extended service life. Direct replacement without modification – bolt-on ready.

Logistics & Global Availability

The XCMG 380900922 clamping plate is stocked in regional warehouses across Asia, Europe, the Middle East, Africa, and the Americas. Standard packaging includes individual anti-corrosion bags and heavy-duty export cartons. Bulk orders (50+ pieces) are available at discounted rates with reduced shipping costs. Fast delivery via air or sea freight ensures minimal downtime for your projects.

For large fleet replacements, XCMG offers batch certification and coordinated delivery. Always verify part number 380900922 before ordering to ensure compatibility. For urgent needs, expedited shipping options are available through our logistics partners.

Performance Comparison: Genuine XCMG vs. Generic Alternatives

Independent field tests show that genuine XCMG 380900922 clamping plates last 2.5x longer than aftermarket copies. Generic plates often exhibit 20% lower hardness and poor flatness, resulting in uneven clamping and cutting edge movement. The genuine plate’s precise counterbore depth eliminates bolt head interference, a common issue with inferior parts.

Total cost of ownership analysis reveals that using genuine clamping plates reduces blade edge replacement frequency by 30% and eliminates moldboard damage caused by loose cutting edges. For contractors focused on productivity, the 380900922 genuine plate delivers the best ROI over any aftermarket alternative.

Technical Support & Documentation

Each shipment of XCMG 380900922 clamping plate includes a dimensional inspection certificate and material test report. Digital installation drawings, torque specifications, and 3D models are available via the XCMG partner portal. For complex blade system rebuilds, our support engineers offer remote consultation (use inquiry button for assistance).

Maintain your grader’s cutting accuracy and safety with genuine XCMG 380900922 clamping plates – the professional choice for road construction, mining, and infrastructure projects worldwide.


XCMG genuine 380900922 clamping plate – OEM precision, unmatched holding power. For technical datasheets or bulk orders, use the Inquiry Now or Send Email button.

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