Building a Dingo Attachment Adapter for Excavator Use

[MikePhua]

The Rise of Compact Attachments and Cross-Machine Adaptation
In the evolving world of compact equipment, versatility is king. Operators increasingly seek ways to repurpose attachments across different platforms—especially when working in confined spaces or on specialized terrain. One creative solution involves adapting Dingo-style attachments, originally designed for mini loaders, to fit larger machines like compact excavators. This approach expands the utility of existing tools and allows access to areas where the original carrier cannot reach.
The Dingo, a compact loader developed in Australia and later popularized globally, uses a standardized mounting plate for its attachments. These include post hole diggers, buckets, trenchers, and concrete tools. By fabricating an adapter plate, operators can mount these tools onto an excavator’s quick coupler or stick, enabling hydraulic operation in tight quarters.
Designing the Adapter Plate for Excavator Integration
The adapter plate must bridge two mechanical systems:

• The Dingo-style attachment interface, typically a flat plate with bolt holes and guide slots
  
• The excavator’s coupler or stick mount, which may use pins, ears, or hydraulic latches
  

Key design elements include:

• A reinforced steel plate (minimum 10 mm thickness) with gussets for torsional strength
  
• Bolt-on brackets or welded tabs to match the Dingo attachment geometry
  
• Pin bosses or coupler ears aligned to the excavator’s stick dimensions
  
• Optional hydraulic ports or hose guides for powered attachments
  

One operator fabricated his plate using salvaged angle iron and high-grade bolts, ensuring that the post hole digger could be mounted securely and operated via the excavator’s auxiliary hydraulics. The result was a compact drilling rig capable of reaching behind fences, under trees, and into tight corners where the Dingo could not maneuver.
Applications and Field Advantages
This type of adapter opens up new possibilities:

• Drilling fence posts along steep embankments
  
• Pouring concrete into stair molds with precision
  
• Using trenchers in narrow corridors between buildings
  
• Operating augers in rocky terrain with better downforce
  

In one project, a contractor used the adapted post hole digger to install signposts along a cliffside trail. The excavator’s reach and stability allowed safe operation without repositioning the machine repeatedly.
Fabrication Tips and Safety Considerations
To ensure durability and safety:

• Use MIG or stick welding with proper penetration
  
• Test the adapter under load before field use
  
• Install locking pins or safety clips to prevent detachment
  
• Avoid sharp transitions in weld zones to reduce stress concentration
  
• Paint the adapter with corrosion-resistant coating if used in wet environments
  

Operators should also verify hydraulic flow and pressure compatibility. Dingo attachments are designed for lower flow rates; running them on high-flow excavator circuits may require restrictors or flow dividers.
Recommendations for Multi-Platform Attachment Use
For those considering similar adaptations:

• Document all dimensions and mounting specs before fabrication
  
• Use CAD or cardboard templates to test fitment
  
• Consult with local fabricators or equipment dealers for material selection
  
• Keep spare pins, bushings, and hydraulic fittings on hand
  
• Label the adapter clearly to prevent misuse or confusion
  

Some operators go further by building universal adapter plates that accept multiple attachment styles—Bobcat, Dingo, Toro, and custom tools—making their excavator a true multi-role platform.
Conclusion
Repurposing Dingo attachments for excavator use through a custom adapter plate is a practical and inventive solution for operators seeking flexibility and reach. With careful design, solid fabrication, and attention to hydraulic compatibility, this approach transforms compact tools into powerful extensions of larger machines. In the world of heavy equipment, ingenuity often begins with a welder’s spark and a problem worth solving.