Macawber Group

Typical foundry systems are required for sand handling and additive handling for green sand systems. The sand systems are based on the unique Sandpump®, which achieves very low transfer velocity of the sand to avoid pipe wear. The sand conveying pipeline also use light weight bend tees which allow the sand to turn through a right angle without wear and resistance to conveying.

The Sandpump® is also designed to achieve extremely low air consumption and completely automatic operation. Typically the systems are provided with a central control and display panel that allows automatic sand distribution without operator supervision. In addition an operator friendly fault diagnostic facility is available which makes life easy for the maintenance staff when they are required.

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The Sandpump® is also fitted with a Dome Valve® for vessel filling which is proven to provide long-term virtually maintenance free operation with abrasive materials. In addition the Dome Valve® avoids the need for a level probe fitted in the vessel because the Dome Valve® is designed to operate through a static column of sand.

The system does not require the use of pipeline boosters avoiding their maintenance and cost. Irrespective of conveying distance, the sand velocity is controlled to avoid pipe wear and excessive air consumption.

The very low sand velocity allows the use of schedule 40 pipe (light weight pipe) without wear concern. It does not require cast pipe or heavy wall pipelines to extend pipe wear normally associated with booster fitted to the conveying pipeline.

Successful systems for foundries such as the Sandpump® are simple, durable and virtually maintenance free. The Sandpump® in more than 1000 installations since 1977 has achieved this.