Core Differences and Selection Strategies Between Spray Booth Environmental Protection Equipment and Sandblasting Room

It is professionally designed for coating procedures. It restricts the diffusion of paint mist through enclosed space, and is fitted with air filtration systems as well as constant temperature and humidity devices, ideal for fine spraying work in automobile, furniture and other industries.Core advantages:The uniformity of paint film is over 98%;VOC emission concentration can be controlled within 50mg/m³, in line with GB 24409 standard;Both dry and wet paint mist treatment modes are available, and the purification efficiency of Venturi water curtain type reaches 99.2%.

It is used for workpiece surface pretreatment. It removes rust layers by spraying abrasives such as steel grit and brown corundum at high speed.Key technical indicators:Adjustable surface roughness ranges from Ra12.5μm to 100μm;The sandblasting efficiency is 15 to 30 square meters per hour, varying according to abrasive types;

It is equipped with a dust recovery system, and the pulse back-blow dust collector features a filtration precision of 0.3μm.

The working pressure of spray booth environmental protection equipment is 0.3-0.6MPa, while that of sandblasting booth is 0.6-1.2MPa.In terms of energy consumption, the spray booth consumes 25-40 kilowatt hours per hour including baking operation, and the sandblasting booth consumes 15-25 kilowatt hours per hour.For noise level, the noise of spray booth is no more than 75 decibels, and the sandblasting booth generates noise above 85 decibels which requires sound insulation treatment.In respect of maintenance cycle, filter cotton of spray booth needs monthly replacement, and the wear condition of sandblasting nozzles of sandblasting booth shall be inspected every week.

Spray booth environmental protection equipment is preferred for precision instruments, electronic products and other industries requiring Grade A surface treatment. For instance, when automobile 4S stores adopt the 3C1B spraying process, infrared baking lamps with a wavelength of 2 to 5 micrometers need to be installed inside the spray booth.

Sandblasting booth is applicable to steel structure anti-corrosion projects, ship maintenance and other occasions that meet Sa2.5 rust removal standards. Centrifugal sandblasting machine is highly recommended, which can save 30% energy compared with pressure type sandblasting equipment.

Integrated sandblasting and spraying cabins are widely adopted in modern intelligent workshops. Taking a heavy industry enterprise as an example, automatic robot positioning equipment is installed in the front sandblasting area with a repeated positioning accuracy of ±0.1mm. A phosphating transition zone is arranged in the middle part, and electrostatic rotary cups are equipped in the rear spraying area to lift the paint application rate up to 85%. This scheme reduces workpiece transferring time by 70%, yet increases overall investment cost by 400,000 to 600,000 yuan.