The CAEL Compact Hydraulic Pin Grabber Coupler is designed for 3–4 ton excavators, providing a convenient solution for changing compatible attachments while reducing manual pin handling and equipment downtime. Constructed from high-strength T1 steel with hardened, greasable lugging pins, it is designed for demanding construction, landscaping, utility, and excavation applications.

A mechanical configuration is also available for operators who prefer a manually operated attachment-locking system.

Key Features

• Designed for 3–4 ton excavators
• 70 lb coupler weight
• Hydraulic pin-grabber configuration
• T1 steel construction
• Includes 2 hardened, greasable steel lugging pins
• Hydraulic option includes cylinder, hoses, and solenoid
• Mechanical option includes wrench and locking bolt
• Designed for efficient attachment changes
• Suitable for buckets, augers, breakers, and other compatible attachments

Technical Specifications

Efficient Attachment Changes

The hydraulic configuration is designed to allow operators to switch compatible attachments from the excavator, helping streamline work when multiple tools are required throughout the day.

Suitable applications may include switching between:

• Excavation buckets
• Grading and cleanup buckets
• Hydraulic breakers
• Augers
• Other compatible excavator attachments

The mechanical configuration provides a manually operated alternative for operators who prefer a straightforward locking system.

Durable Construction

The coupler is constructed from high-strength T1 steel with hardened and serviceable lugging pins designed for repeated attachment changes and demanding job-site conditions.

Regular inspection and lubrication of the pins, locking components, mounting surfaces, and hydraulic connections are recommended to support reliable operation.

Compatibility

The CAEL Compact Hydraulic Pin Grabber Coupler is intended for compatible 3–4 ton excavators using matching mounting configurations.

The supplied compatibility information includes:

• Caterpillar 303–304 pin configurations
• Yanmar 30–40 pin configurations
• AGT KU45 pin configurations
• Longking CDM6035 pin configurations

Important: Excavator weight class and pin configuration alone do not guarantee compatibility. Before ordering, confirm the machine's pin diameter, pin center-to-center spacing, dipper gap, lug dimensions, mounting geometry, hydraulic requirements, and coupler configuration.

If your excavator uses a different mounting arrangement, contact CAEL to confirm fitment and available mounting options.