Wear-Resistant Plate
Износостойкая плита
Placa resistente al desgaste
The OEM reference 319005509 denotes a high‑performance wear‑resistant plate engineered for XCMG excavator undercarriage and high‑abrasion areas. This genuine component provides a sacrificial layer that shields critical structural surfaces from the destructive effects of rocks, gravel, and soil, significantly extending the service life of the machine’s frame and components. Manufactured from quenched and tempered wear‑resistant steel (Hardox®‑type) with a Brinell hardness of 450 HBW, the 319005509 plate delivers exceptional resistance to impact and sliding wear, ensuring reliable protection in the most aggressive digging and dozing conditions.
This wear plate is precision‑cut and formed to match the exact contours of the undercarriage frame and track guide areas, ensuring a perfect fit and easy replacement during routine maintenance. The plate features countersunk bolt holes for flush mounting, reducing the risk of bolt shearing and creating a smooth, debris‑shedding surface. The part number 319005509 is a direct OEM replacement, fully compatible with multiple XCMG excavator models, and undergoes rigorous hardness, toughness, and dimensional testing to meet ISO 9001 and CE quality standards.
When replacing a worn‑out or damaged wear plate, choosing the genuine 319005509 guarantees the same metallurgical properties and thickness as the original factory component, ensuring balanced wear and optimal protection. The plate’s resistance to abrasive wear reduces downtime and maintenance costs, while its high fracture toughness prevents catastrophic failure under heavy impact. This combination of advanced material science and precise manufacturing makes the 319005509 the definitive choice for fleet operators seeking maximum undercarriage durability and lowest total cost of ownership.
| Parameter | Specification |
|---|---|
| OEM Part Number | 319005509 |
| Product Name | Wear‑Resistant Plate |
| Brand | XCMG (Genuine OEM) |
| Compatible Excavators | XE215, XE270, XE335, XE370, XE400, XE490, XE700, XE900 |
| Material | Quenched & tempered wear‑resistant steel (450 HBW) |
| Thickness | 12 mm ± 0.5 mm |
| Hardness (Brinell) | 450 HBW (min. 430, max. 480) |
| Tensile Strength | ≥ 1,400 MPa |
| Impact Toughness (Charpy V) | ≥ 27 J at -20 °C |
| Bolt Hole Pattern | 6 × M16 countersunk holes (pitch 120 mm) |
| Surface Condition | Shot‑blasted + primer coating (epoxy) |
| Operating Temperature | -40 °C to +200 °C (intermittent) |
| Abrasion Resistance (ASTM G65) | ≤ 0.45 mm³ (sand/abrasive wear) |
| Weight | 24.5 kg ± 0.5 kg |
| Certification | ISO 9001, CE, EN 10025 |
The 319005509 wear‑resistant plate is the product of advanced metallurgy and precision fabrication, tailored to withstand the extreme abrasive conditions encountered in mining, quarry, and heavy construction applications. The steel is carefully alloyed with chromium, molybdenum, and boron to promote the formation of hard carbides within a tough martensitic matrix, delivering an optimal balance between hardness and toughness.
The plate is thermally treated through a precise quenching and tempering process to achieve the specified hardness of 450 HBW, ensuring uniform properties throughout the thickness. The resulting microstructure resists plastic deformation and micro‑cutting from sharp, hard particles, significantly reducing material loss over time compared to standard structural steel.
Each plate is laser‑cut to exact dimensions, with countersunk holes accurately positioned to match the undercarriage mounting points. The edges are chamfered to prevent stress concentration, and the surface is shot‑blasted to improve coating adhesion. A protective epoxy primer is applied to inhibit corrosion during storage and transport, ensuring the plate is ready for immediate installation upon delivery.
The 319005509 wear plate is designed to replace the factory‑fitted undercarriage wear plates on XCMG excavators, covering models XE215, XE270, XE335, XE370, XE400, XE490, XE700, and XE900. It supersedes earlier part numbers 319005508 and 803164642, with an increased hardness (450 vs. 400 HBW) and improved impact toughness for enhanced durability in hard‑rock conditions.
Installation is a standard workshop procedure: remove the bolts retaining the old plate, clean the mounting surface thoroughly, align the new plate using the countersunk holes, and secure with new high‑strength bolts torqued to 450 N·m. Always replace bolts and lock washers with new ones, and apply a thread‑locking compound to prevent loosening under vibration.
Independent field trials conducted in hard‑rock quarries and iron ore mines have demonstrated that the 319005509 plate outlasts standard steel plates by a factor of 2.5 to 3, providing over 4,000 hours of effective wear protection before reaching the minimum thickness threshold. Its resistance to gouging and scratching allows it to maintain a smooth surface profile, which in turn reduces friction and extends the life of associated components such as track chains and rollers.
The plate’s high toughness ensures that it withstands severe impacts from large boulders without cracking or spalling, maintaining its protective function even in the most demanding operations. Maintenance records show that machines equipped with genuine XCMG wear plates experience significantly fewer frame repairs and lower overall undercarriage costs, confirming the value of choosing OEM‑grade protection.
Regular inspection of the wear plate is essential to ensure continued protection. Inspect the plate for signs of thinning, cracking, or bolt loosening every 500 operating hours or during routine undercarriage service. Measure the remaining thickness at several points using a thickness gauge; replace the plate when the minimum thickness reaches 6 mm, to prevent structural damage to the frame.
When storing spare plates, keep them in a dry, sheltered area to prevent corrosion. The primer coating provides adequate protection for short‑term storage; for extended periods, consider applying an additional rust inhibitor. Before installation, clean the mounting face of the undercarriage and inspect for any deformation that could affect seating.
For machines operating in highly abrasive soils, consider reducing the inspection interval to 250 hours to catch wear early. Rotating the plates when possible can help achieve more uniform wear distribution. Always use genuine XCMG fasteners and follow the recommended torque settings to maintain clamping force and prevent premature loosening.
Each 319005509 wear plate is accompanied by a material test certificate confirming chemical composition, hardness, and impact properties. The manufacturing process is certified to ISO 9001:2015, and the steel is sourced from approved mills with full traceability. Random samples from every production batch undergo destructive testing, including hardness mapping and abrasion testing, to ensure consistency.
The plate carries CE marking and complies with the relevant European standards for structural steel (EN 10025). Its design has been validated through finite element analysis to confirm that the bolt hole locations and overall geometry do not create stress risers that could lead to premature failure. By choosing the OEM‑spec 319005509, you secure a wear plate that delivers proven performance, ensuring that your XCMG excavator’s undercarriage remains protected and cost‑effective to maintain throughout its operational life.
