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Glass Sandblasting Machines

Abrasive Recycling

General: After blasting, some abrasives remain sharp in edge and large in sizes. They are still usable. However, these usable abrasives are mixed together with dusts generated during blasting. It is worthy to recycle usable abrasives for cost saving. Meanwhile, abrasives air blasting is a dusty process. Annoy dusts are required to be collected for disposal avoiding pollution. Recycling is an integrated process which

�� separates usable abrasives from dusts

�� brings usable abrasives back for blasting

�� collects dust for disposal

SBM-V and SBM-H series machines come with blasting cabins with recycling and separating units. They are close loop designs and no extra facilities are required for recycling. However, SBM-P portable blasting machine is not equipped with separating and recycling systems. SBM-P is usually applied inside a sandblasting booth. Additional facilities are required for abrasives separating and recycling. There are usually two recycling designs depending on which process is appropriate, automatic or manual

Abrasives Sands

Silica Sand

Silica sand is the most commonly used abrasive and typically has the most negative impact. Silica sand quickly breaks up and creates large quantities

of dust, which when exposed to the operator can cause Silicosis, a debilitating lung disease.

Coal or Smelter Slag

Coal or smelter slag contains low silica content and therefore does not cause Silicosis. However, these abrasives have been reported to release other Hazardous Air Pollutants (HAP's) into the air.

Metallic, Synthetic & Mineral

These other types of abrasives are growing in popularity due to the low dust creation and reclamation of material. Each of these abrasives reports significantly less dust and waste than sand and coal/slag abrasives. Most commons are steel grit, steel shots, copper slag, glass beads (bead blasting), metal pellets, dry ice, garnet, powdered slag and powdered abrasives of various grades.

Organic

It is typically ground coconut shells, walnut shells, baking soda, corncobs or fruit kernels. These soft abrasives are used for cleaning of brick or stone work or the removal of graffiti without damaging the underlying material. They could also be used for the removal of conformal coatings from printed circuit boards for rework. In some specific applications, distinct surface finishes are created with organic abrasives.

Abrasives for Glass

In glass blasting industries, the most popular abrasives are aluminium oxide and garnet. Aluminum oxide is an artificial product while garnet is natural.