CAT 9J-3599 2.320\ Outer Diameter Retainer

CAT 9J-3599 is a Caterpillar original equipment manufacturer (OEM) excavator (bucket tooth) pin lock retainer, compatible with the bucket teeth of small and medium-sized excavators and loaders. It is used to lock the tooth pins to prevent them from falling off, and is suitable for frequent impact conditions. The following are the key details.

Core Technical Parameters

Item Details
Part Model: CAT 9J-3599 (Bucket Tooth Pin Lock Fixer, 65Mn Spring Steel, Surface Oxidation Treatment, Double Helix Locking Structure)

Material: 65Mn Spring Steel, Hardness HRC 42-48, Tensile Strength ≥ 1200 MPa, Impact Toughness ≥ 60 J/cm², Suitable for -30℃ to +80℃ Operating Conditions

Key Dimensions: Length 78 mm, Width 22 mm, Thickness 15 mm, Locking Pin Hole Diameter 12 mm, Suitable for Bucket Tooth Pin Diameter 12-14 mm

Single Weight: Approx. 0.21 kg (0.4629 lbs)

Locking Performance: Locking Pull Force ≥ 8 kN, Reliable Locking Under Vibration and Impact Conditions, Repeated Insertion and Removal Life ≥ 500 Cycles

Core Functions Locking bucket tooth pins prevents bucket teeth from falling off due to vibration and impact during excavation, ensuring operational safety and efficiency.

Structure and Core Functions

Double Helix Locking Structure: A double helix claw design automatically locks in place after insertion into the bucket tooth pin hole, providing strong resistance to vibration and impact, suitable for frequent excavation conditions.

Spring Steel Material: 65Mn spring steel possesses high elasticity and wear resistance. Surface oxidation treatment enhances rust resistance, making it suitable for humid and dusty operating environments.

Quick Installation and Removal: No special tools are required; manual insertion and removal can be completed, improving bucket tooth replacement efficiency and reducing downtime.

Anti-Loss Design: The claws fit tightly into the pin hole, preventing the retainer from loosening due to uneven force on the bucket teeth during operation, ensuring stable bucket tooth installation.

Compatible Models and Application Scenarios

Compatible Equipment: Bucket tooth systems for small and medium-sized equipment such as CAT 306/307/308 series excavators and 906/907/908 series loaders.

Core Application: Installed at the end of the bucket tooth pin, it locks the pin and prevents the bucket teeth from falling off during excavation operations. Suitable for frequent impact conditions such as earthmoving and crushing.

Installation and Maintenance Points

Installation: Clean the surface of the bucket tooth pin and pin hole, ensuring it is free of oil and rust. Insert the retainer into the pin hole, ensuring the double helical claws are fully engaged with the pin body without any loosening.

After installation, gently pull the retainer to check the locking reliability and ensure there is no risk of it falling off.

Maintenance: Before each operation, check the locking status of the retainer. If deformation, wear, or loosening of the claws is found, replace it immediately.

For long-term storage, apply anti-rust oil to the surface to prevent rust from affecting the locking performance.

If the retainer develops cracks or breaks, replace it immediately to prevent bucket teeth from falling off and causing safety accidents.