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Providing the Best Solutions

 

WMV designs and builds automated and manual machines that treat mass produced bulk parts in a variety processes. The processes include but are not limited to:

• Washing • Drying
• Deoiling • Dip-spin-tilt coating
• Waxing • Chromating Part loading and unloading
WMV designs and builds automated and manual machines that treat mass produced bulk parts in a variety processes.

Chromating

 

The DSC transfer hoist system is all ready accepted and in use by leaders in the metal finishing industry throughout Europe.


The DSC transfer hoist incorporates centrifuge basket spinning and tilting capabilities.  Centrifuge baskets loaded with parts can be immersed in treatment solutions and tilted or oscillated to manipulate the parts per a part process recipe.  Actions that can be controlled are  the tilting and rotation of the  centrifuge basket to reorient parts and the spin speed of the oscillated centrifuge basket at any point during the treatment process.  After parts are treated the centrifuge basket can be positioned over the solution tank and spun at a high speed to recover solution directly back to the solution tank, tilted and rotated to reorient parts that tend to hold solution and then spun at a high speed again.


By spinning the centrifuge basket and reorienting parts, drag out of solution can be reduced by up to 95% when compared to highly efficient plating barrels.  Reducing drag out of solution is especially important with the new passivation and topcoat chemistries because they are more costly than the chemistries that were previously being used.  The new materials are being specified to meet the EEC end of vehicle life standards that limit the use of materials containing Cr-6 chrome.  The DSC transfer hoist addresses the need to reduce the amount of the new chemicals used by recovering solution rather than dragging it out to the next solution tank.  In addition to recovering the treatment solution, a reduction in the use of rinse water and the amount of waste that needs to be treated can be achieved.  This is important since waste treatment of Cr-6 free chemistries is more expensive than chemistries that contain Cr-6.


In addition to these benefits, parts can have the topcoat applied to them and dried in the same centrifuge basket that the parts were passivated in.  Again, the capabilities of the DSC transfer hoist allows for the manipulation of the centrifuge basket to reorient parts which insures the topcoats are applied uniformly.   Recovering topcoat solution further reduces the use of chemicals and waste treatment. After the topcoat is applied the centrifuge basket and parts can be placed in a temperature controlled centrifuge drier. The drier can also tilt to reorient parts to uniformly dry the topcoat onto the parts, assuring a durable high quality finish.


After drying, the parts can be automatically emptied from the centrifuge basket and gently loaded into bins using special equipment. Gentle loading of the parts into the bins prevents damage to the parts and finish.  Centrifuge baskets can then be stripped of the residual topcoat and returned to the line to be filled by either transferring parts from the plating barrel into the basket or using a separate load system.
It is possible to integrate the DSC transfer hoist and BS2002 system into an existing plating line or planning it as part of a new line.


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