One of the smartest features of the Lingdong system is the high compatibility between Lingdong tiltrotator tools and the Lingdong Rotating Quick Coupler.
Why Compatibility Matters
The bottom interface of the Lingdong tiltrotator uses the industry-standard S-type quick coupler (S30 / S40 / S50 / S60 / S70), sized according to excavator tonnage.
The standard Lingdong Rotating Quick Coupler comes with a flat-push (flat face) quick coupler at the bottom. Thanks to its wide pin-center distance adaptability, this version is already compatible with approximately 80% of Lingdong tiltrotator attachments, including:

Buckets
Ripper hooks
Vibratory plate compactors
Grapples / log grabs
And many other common tools

100% Compatibility Option
The bottom of the Lingdong Rotating Quick Coupler is modular by design.
You can easily upgrade or customize it to an S-type interface (S30–S70). Once changed to the S-interface version, the rotating quick coupler achieves full 100% compatibility with all Lingdong tiltrotator tools.
Smart High-Low Matching Solution
This compatibility brings huge practical advantages, especially for equipment rental companies and contractors:

Tiltrotators are premium, high-cost attachments. Not every excavator on a fleet needs one.
With the Lingdong Rotating Quick Coupler, you can create a flexible “high-low” combination:
Use the full Lingdong tiltrotator on machines that need maximum versatility (tilt + rotation).
Use the more affordable Lingdong Rotating Quick Coupler on other machines for 360° rotation and fast tool changes.

Result?
The same set of attachments can be shared across both tiltrotator-equipped and rotating quick coupler-equipped excavators — greatly improving fleet utilization and reducing overall investment.
Whether you run a single machine or a large rental fleet, this modular compatibility saves money and maximizes productivity.

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Looking for a cost-effective way to expand your attachment fleet?