Chromium Carbide Overlay Bucket | Loader & Excavator Wear Buckets
Our chromium carbide overlay bucket is a premium hardfacing solution for loaders and excavators operating in severe abrasive environments. We manufacture each bucket from high-grade Chromium Carbide Overlay Plate. As one of the few manufacturers capable of producing this hardfacing excavator bucket, we engineer the surface hardness to reach HRC 55-65. This level of hardness delivers strong corrosion protection and excellent abrasion resistance, so the buckets serve reliably across mining, coal power, ports and other heavy industries. For mining and coal operations in particular, equipment abrasion is unavoidable regardless of the minerals being handled. Notably, our hardfacing buckets deliver far greater wear resistance, with a service life 3–5 times longer than standard material buckets.
1.Chromium Carbide Overlay Bucket – General Description
Specifically, Zhengsheng series overlay buckets differ from traditional manufacturing processes. We fabricate the entire bucket from surfacing-welded wear-resistant steel plate, and add extra wear-resistant protection to all high-wear components that would otherwise be difficult to replace. As a result, our products perform reliably in coal sites, ore yards, heavy-load scenarios, medium-impact material handling and bulk material yards.
2.Key Benefits of Our Chromium Carbide Overlay Buckets
Our hardfacing buckets deliver four core advantages for your operations:
●Extends wear life, boosts payload capacity and increases service life up to 8 times longer than standard buckets
●Furthermore, we optimize each bucket to resist sliding wear, with consistent, guaranteed hardfacing layer performance
●Reduces downtime caused by damage and part replacement, and improves overall operational efficiency
●Additionally, we perform in-factory shot blasting and sandblasting to release internal stress, add anti-corrosion wear protection and further extend service life.
3.Typical Applications
For example, these buckets are engineered for the following operating conditions and material types:
| operation environment | ore and coal terminal, short haul feeder system, short haul, palletizing and loding, storage yard clear |
| operation ore categories/sort | coal, coke, iron ore, ect similar mineral products |
4.Standard Dimensions
●We have rich experience in the manufacturing of bucket, according to the specific conditions and needs, to do targeted design and production of the bucket, to maximize the service life of the product.
●We can also make it according to the drawings provided by the purchaser.
5.Customer Case
| Ore terminal short haul | Ore terminal railway loading |
| Application: Excavator bucket | Application: Loader bucket |
| Wear part:cutting edge | Wear part:bucket |
| Purpose: Increase payload and service life | Purpose: Increase payload and service life |
| Type of wear: Sliding wear and some impact | Type of wear: Sliding wear and some impact |
| Benefit: Service life increased by 500% with overlay plate compared to mild steel | Benefit: Changing from hot rolled wear-resistant steel to chromium carbide overlay wear plate increased service life from 10 months to 3 years |
6.Mechanical Properties of the Overlay Bucket
●Surface hardness
| Number of overlay passes | Typical surface hardness |
| Double or multiple | 59 to 62 HRC (675 to 750 HV) |
NOTE：Surface hardness is measured on machined flat surface just below overlay surface
●Wear Properties
| Number of overlay passes | ASTM G65 – Procedure A weight loss | |
| Surface | 75% depth | |
| Double or multiple | 0.16g maximum | 0.16g maximum |
NOTE：1.ASTM G65 is a standard test measuring sliding abrasion resistance using a dry sand/rubber wheel apparatus. ASTM G65-Procedure A is the most severe test method.
2.ASTM G65 wear test is conducted at 75% depth of the overlay materials to ensure consistently good wear resistance from the top
