For Ship Crane

RAM 4131 Revolver is a rotating spreader designed to handle single 20ft ISO open top containers or other specialised containers for handling bulk materials (subject to container model). The RAM 4131 for ship crane operations is a safe, efficient and environmentally friendly solution to handle bulk materials.

The award winning 4131 Revolver for handling bulk materials on a ship crane is manufactured from high quality steel and components. The Revolver's design has a safe weight lifting of 35 tonnes per cycle and ensures an efficient and reliable performance in a demanding container/bulk terminal environments.

The Revolver's large gather guides enable a large landing platform for quick and easy landing on the container. Moreover, the the gather guides will  support the container during rotation to prevent shear load on the twistlocks.

The Revolver is equipped with floating twistlocks which allows a certain amount of both lateral and longitude movement, as opposed to fixed twistlocks which are common for jamming.

Once the container is hoisted over the hatch, the Revolver removes the sealed lid in a semi-automatic process, and rotates the container 360 degrees unloading the commodity. The lid is then replaced back on the container and the cycle continues.

The benefits to this containerised bulk handling system are endless...


  Item    Description
Twistlock Rotation 1.5 seconds
Container Rotation 360 degrees
Container Sizes Handled 20ft (subject to model)
Lifting Capacity 35t SWL
Commodities Handled Copper Concentrate, Iron Ore, Scrap Metals, Soya, Mineral sands, Grains, Wood Pellets/Chips, Coal & Pet Coke, Bagged Materials, Zinc, etc.


Clean & Green 

No dust is generated or exposed to the environment as containers are sealed shut. When unloading, the Revolver removes the lid semi-autonomously and then gently rotates at the bottom of the hatch.

Product Protection

As containers are sealed shut until unloading, the system prevents loss of commodity or product quality being degraded (SAVING BIG).


Over the years, RAM has shown how the Revolver can smoothly integrate into any port or logistics type at low costs. That being Pit to Ship, Shed to Ship, Ship to Hopper, etc.

Fast Contigency

The bulk handling system has the ability to stock pile the commodity for the arrival of the ship.



Further Info


Fully Tested

All RAM Spreader products are supplied with full equipment warranty.