Technology

Our automated systems allow us to machine and finish the components of our products in-house, thus providing a strategic advantage to the production process. We boast equipment for testing products and a Research and Development department.

Home/
  1. Metal Sheet processing
  2. Welding
  3. Finishing
    1. Sanding plants
    2. Painting
    3. Special Finishing
  4. Balancing
  5. Testing
  6. Research and development

Special Finishing

 

Galvanization

 

The majority of fans can be subjected to a hot dip galvanization, although with the following limits:

 
  • large size fans that are usually constructed with a single body must be disassembled into several components to allow immersion in the galvanic baths;
  • high-pressure and very close-bladed impellers tend to become clogged with zinc, thus preventing subsequent balancing;
  • very lightweight structures and light gauge sheet steel impellers will become deformed in a hot dip galvanization bath;
  • in impellers with integral hub (series Z…) the bore becomes clogged with zinc;
  • N.B.The appearance of a galvanized fan may be irregular due to the direction of immersion; in addition, the chassis must have the drain holes necessary to make it compatible with the hot dip process. The impeller hubs are painted and assembled to the pre-galvanized impellers; the next stage in the process is balancing, wherein the balancing weights are welded to the impeller;
  • protective casings made of light gauge sheet steel tend to become distorted and it is therefore preferable to purchase them pre-painted or treated by means of a cold zinc coating system.
 
 
 
 

Stainless Steel

 

The standard treatment for stainless steel fans up to size 710 consists of micro shot blasting; alternatively, the fan can be painted. For all other fans the treatment consists of external painting, with optional micro shot blasting; hybrid fans with parts in carbon steel and parts in stainless steel are painted. The standard colour for fans made entirely or partly of stainless steel is RAL9007.