JCB Loader Bucket Teeth 332/C4388 332/C4389 and 332/C4390

Loader buckets with teeth are essential for digging, scooping, and material handling in construction, landscaping, and mining. Designed for maximum wear resistance and penetration, these teeth improve bucket efficiency, reduce machine stress, and allow easy replacement. High-strength steel ensures long-lasting performance in harsh operating conditions.

Part Number： 332/C4388 332/C4389 and 332/C4390

Machine Model ： JCB LOADER

Material ： Alloy Steel

Unit Weight ： 2.5KGS 5.3KGS

Hardness： 48-52HRC

Package ： Center tooth 650pcs/box Side Cutter 220pcs/box

Impact Value ： >12J

Color ： Yellow, Black ,Green

Technology： Precision Casting , Sand Casting

Relative Parts ： 333D8455 333D8456 333D8457

Inquiry

E-mail：tig@tigerlevel.com

WhatsApp：8615857482399

Bucket teeth and adapters are critical wear parts used in excavation, mining, construction, and material handling equipment. Together, they form a durable, replaceable cutting edge system for buckets on excavators, loaders, and backhoes, significantly enhancing productivity and protecting the bucket itself. We can make the teeth and adapters fit for caterpillar , Komatsu ,Hitachi ,Hyundai ,Daewoo , Doosan , Esco , Case , Kobelco , Volvo , Hensley ,H&L, ，Sany，Liugong, xcmg etc.

1.Key Features

Penetration & Efficiency: Their sharp or reinforced profiles reduce digging resistance, allowing for faster and more efficient material breakout.

Wear Resistance:Manufactured from high-strength, abrasion-resistant alloy steel (often through forging or casting), they withstand extreme abrasion and impact.

Variety of Profiles: Different shapes (e.g., sharp, conical, rock, and twin-teeth) are optimized for specific materials and applications.

Replaceability:As consumable parts, they can be replaced individually when worn, avoiding the need to change the entire bucket.

2. Key Benefits:

Increased Productivity: Improves digging efficiency and cycle times.

Cost Savings: Protects the more expensive bucket lip from wear, extending its lifespan. Replacing only teeth and adapters is far more economical.

Versatility:Operators can change tooth types for different earth conditions (e.g., general purpose vs. rock penetration).

Operational Safety: Prevents premature failure of the bucket edge and maintains optimal machine performance.

A Loader Bucket with Teeth is a core working attachment for wheel loaders, excavators, and other Construction Machinery. It consists of the bucket body, side plates, cutting edge, Bucket teeth, and reinforcement ribs. It is mainly used for loading, transporting, and stacking soil, sand, coal, ore, construction debris, and other materials. Compared to smooth-edge buckets, a tooth-equipped bucket significantly improves penetration, digging efficiency, and bucket lifespan. It is widely used in construction, mining, municipal works, agriculture, forestry, and port operations.

The key advantage of a loader bucket with teeth is that the teeth make first contact with the material, breaking hard soil, frozen ground, or clumped materials. This reduces loading resistance, lowers transmission system load, and decreases fuel consumption and equipment wear. The bucket body is generally fabricated from high-strength, wear-resistant steel plates, with reinforcement plates in critical stress areas. The structure has high rigidity, deformation resistance, and impact resistance. The cutting edge is made from thick wear plates, which work with the teeth to create a continuous cutting surface, ensuring smooth penetration while preventing direct bucket wear.

Loader Bucket with Teeth

Bucket teeth are critical wear parts of a loader bucket. They are usually made from high-manganese steel or low-alloy wear-resistant cast steel. After heat treatment, they offer high hardness and toughness, capable of withstanding impact and abrasive wear. Teeth are attached to the cutting edge via horizontal pins, vertical pins, or bolts, allowing easy replacement and low maintenance costs. Depending on working conditions, teeth can be general-purpose soil teeth, heavy-duty rock teeth, or extended penetration teeth. Tooth shape, number, and spacing are optimized for both digging efficiency and material fill rate.

Loader buckets with teeth are categorized by purpose into standard, heavy-duty, rock, and light-duty types, and by structure into open, closed, and side-dump designs. Bucket capacity ranges from 0.5 m³ to over 6 m³, matching different loader sizes. Proper arrangement of tooth number and spacing ensures even force distribution during loading, preventing local stress concentrations that could cause cracking or deformation.

Main Types and Specifications of Loader Buckets with Teeth

Type	Suitable Conditions	Bucket Material	Tooth Configuration	Typical Capacity Range	Core Features
Standard	Soil, sand, loose gravel	Q345/Q460 wear plates	5–7 general-purpose teeth	1.0–3.0 m³	Versatile, high fill efficiency
Heavy-Duty	Hard soil, rubble, construction debris	NM400/NM450 wear plates	Thickened wear teeth	1.5–4.0 m³	Reinforced body, impact-resistant
Rock	Ore, hard rock, mining	NM500 ultra-high-strength wear plates	Heavy-duty rock teeth	2.0–6.0 m³	Ultra-high strength, wear and crack resistant
Light-Duty	Grain, wood chips, coal	High-strength steel plate	Short light teeth	0.5–2.0 m³	Lightweight, low energy consumption

Operation and Maintenance

Before operation, inspect teeth for looseness or cracks and check the cutting edge for severe wear or deformation. Replace worn or broken teeth promptly to prevent accelerated cutting edge damage. Regularly inspect welds and reinforcement ribs on the bucket body to prevent cracking or weld failure. Avoid using teeth to pry or hammer heavy objects, which can cause impact damage. Correct selection and standardized operation can significantly extend bucket life and improve overall equipment productivity.

Loader Bucket with Teeth