Patented Systems: Clamshell Crane

Miami-Dade county sought to modernize their existing FOG (fats, oil & grease) disposal facilities. The county needed two clamshell crane systems, one to load oily waste for disposal at one facility, and another for their food-to-waste plant.

Miami-Dade needed a UL508A certified system that could operate for extended periods of time without the risk of failure and expensive down-time.

Considering the heavy-duty use of both systems, MHS sourced Anvil clamshell below-the-hook attachments that would be used in conjunction with the overhead system. Our engineers designed a custom 4 Ton 3 wire rope hoist with dual lifting ropes to open and close the clamshell, allowing for easy loading onto waste trucks.

The crane system designed for both facilities were 4 ton bridge cranes with mainline disconnects controlled directly from the pendant for enhanced safety.

To satisfy the needs of the food-to-waste facility, we built an electro-hydraulic clamshell crane system to support heavier, solid loads.

Systems Type:
Top-Running Double Girder Overhead Bridge Crane

Hoist Type: Wire Rope Hoist

Capacity:

• One 4 Ton Crane (FOG plant)

• One 4 Ton Wire Rope Hoist attached to Anvil clamshell (FOG plant)

• One 4 Ton electro-hydraulic clamshell crane system (food-to-waste plant)