Continuous ship unloader
(mechanical, screw type) MacGregor Bulk

Siwertell continuous screw-type unloaders:

With a totally enclosed conveying line the Siwertell unloader ensures environment-friendly operation. It is suitable for a wide range of dry bulk cargoes such as cement, coal, grain, derivatives, fertilizers, minerals etc.

The Siwertell continuous, screw-type unloader offers:
- Well proven and reliable continuous unloading system.
- Very low impact on the environment. The conveying line is totally closed. Very little dust is generated when material is picked up in the ship's hold. Noise levels are low.
- Cost competitive unloading system. With the low weight of the unloader due to its unique design and based on a well proven standard competitive prices can be offered.
- Simple and robust design with few moving parts and high accessibility.
- Light weight structure means that the Siwertell machine can be placed on old quays with restricted load carrying possibilities.
-Easy maintenance
- High effective capacity. Approximately 75% of the rated capacity is normally the effective capacity when unloading bulk ships. Compare that to a typical grab unloader for example, where the effective capacity is just 50% of rated capacity.
- True multipurpose machine.
- The inlet feeder reaches into all parts of the ship's hold - picking up material underneath the hatches and in corners, operating in all directions and in all movements.
- Quick delivery and short erection time means quicker pay back of money invested.
- Handles large and small ships with the same capacity and efficiency.
- High accessibility means less risk for demurrage or other costs.
- Less damage to the ship.
- No breakage of goods handled