Considerations for the Design of a Sandblasting Room

What is a Sandblasting Room?

A sandblasting room, also known as a shot blasting room or grit blasting room, is suitable for cleaning the surfaces of large workpieces, removing rust, and increasing the adhesion between workpieces and coatings.The main features of a sandblasting room are that during the sandblasting process, the operator is inside the room. Protective clothing and helmets prevent the operator from being impacted by the abrasive material. The ventilation system provides fresh air to the operator through the helmet.

Several Points to Note When Designing a Sandblasting Room

• The sandblasting room should have baffles installed at the air inlets and outlets to prevent dust from spilling out or abrasive material from being drawn into the ventilation system.

  
  

• The air discharged from the sandblasting cleaning device must be purified by a dust removal device before being released into the atmosphere. The dust accumulated in the dust removal device should be easy to transport and should not pollute other working areas.

  
  

• The sandblasting room should correctly select the airspeed in each section of the ventilation system. If the airspeed within the duct is too low, the material will lack enough energy to move through the duct, causing blockages. Horizontal duct blockages are likely due to low airflow speeds. If the airspeed within the duct is too high, it will not only increase system resistance and energy consumption but also accelerate equipment wear and tear.

  
  

• Only after sandblasting operations have stopped can the door to the cleaning room be opened. The ventilation system should continue to work until the dust-laden air inside the sandblasting room is eliminated.

  
  

• The dust-laden air in the ventilation system always flows within the ventilation ducts. When designing the ventilation ducts, besides correctly selecting the airflow speed for each duct, structural designs should be carefully handled to minimize resistance within the ducts.

  
  

• The air volume for ventilation should be sufficient to ensure that the dust-laden air inside the cleaning room dissipates quickly after sandblasting operations end.

  
  

• If the airflow speed at the air intake of the sandblasting room is too low, dust will spill out from the sandblasting room. If the airflow speed at the exhaust vent is too high, the abrasive material will be drawn into the ventilation duct and even into the dust collector, which not only leads to unreasonable abrasive material consumption but also shortens the lifespan of the dust collector.

  
  

• The sandblasting room cleaning room's ventilation system should ensure that there is airflow through every opening during operation.

  
  

• Some airflow regulation valves should be installed on the ventilation ducts to adjust the airflow as needed, ensuring a reasonable airflow speed within the system.

  
  

• Baffles should be installed at the air inlets and openings to minimize the dispersal of abrasive material and dust particles into adjacent work areas during sandblasting, preventing dust from escaping through the inlets or openings.

  
  

The sandblasting rooms designed by QGMA can handle various sandblasting operations for large and irregularly shaped workpieces. Traditional sandblasting equipment designs cannot handle parts of different shapes. However, our sandblasting rooms are designed by experienced professional engineers. Our goal is to continually meet our customers' sandblasting needs. The sandblasting room can clean large and irregularly shaped workpieces from all angles. 

Under stringent environmental conditions, the sandblasting rooms produced by QGMA perfectly meet customer needs, effectively satisfying both sandblasting and environmental protection requirements, based on business production needs and customer demands.