A1 Extraction Systems Ltd

Complete design, manufacture, installation, maintenance and spares service as follows:

• Industrial dust and fume extraction. For all dusts and fumes.
• Industrial Ventilation.
• COSHH Local Exhaust Ventilation test surveys.
• System Maintenance. See below.
• Consultancy – Environment Protection Act – Health & Safety – System Carbon Efficiency.
• Suppliers of: Ducting, rigid and flexible, replacement filters, grilles, fans, mobile welding arms, dust collector and rotary valves. Special fabrications. Spares for all extraction equipment.

• Dust collectors – filter replacement, cleaning mechanism servicing, refurbishment.
• Rotary valve – motor, gearbox, rotor, bearings and blade replacement.
• Fans – replacement of faulty fan impellers, drive belts, motors, bearings, casings.
• Ductwork – replacement of damaged and worn out duct, unblocking and hatch fitting.

We have installed extractors for the following applications.

If your application is not on the list below we would be very interested in quoting and extending the list.

• Acetone
• Acid fume
• Alcohol
• Aluminium
• Ammonia
• Animal feed
• Bitumen fume
• Brick dust
• Bronze dust
• Carbon Black
• Carbon Dioxide
• Carbon Fibre
• Caustic
• Cement
• Ceramic
• Cooking fume
• Coolant mist
• Custard fume
• Degreasant fume
• Dog Food
• Dung
• Engine exhaust fume
• Ferrous dusts

• Fettling dust
• Fish care products
• Foundry dust
• Glass
• Glue
• Gold
• Granite dust
• GRP dust
• Hay
• Horse hair
• Hydrogen gas
• Ink solvent
• Isocyanate
• Isopropyl Alcohol
• Kiln
• Lambs wool
• Lead
• MDF
• Oil Mist
• Paint spray
• Paper
• Photographic laboratory
• Pigment dust

• Plasma cutting
• Plastic
• Pottery dust
• Rubber crumb
• Rubber Smoke
• Sawdust
• Screen printing
• Shot Blast
• Silicate
• Soldering
• Solvent
• Spark erosion
• Steam
• Styrene
• Sugar powders
• Titanium
• Trichloroethylene
• Volatile Organic Compounds
• Water spray
• Wax fume
• Welding
• Wood wa

• Airport fire stations
• Animal feed factories
• Boatyards
• Boat builders
• Brick works
• Carpentry shops
• Carpet factories
• Cheese factories
• Chewing gum manufacturing
• Colleges
• Dockyards
• Electronics
• Engineering works

• Food factories
• Foundries
• Furniture manufacturers
• Investment casting
• Joinery shops
• Laboratories
• Marine industry
• MOD establishments
• Motor vehicle workshops
• Municipal waste
• Museums
• Optoelectronics
• Plastic industry
• Powder coating
• Printers
• Prisons
• Quarries
• Rubber recycling
• Rubber extrusion
• Schools
• Stone masons
• Tyre remould factories
• Universities
• Vending machine manufactures
• Wood waste recycling
• Window manufacturers

Common installation work carried out other than dust & fume extraction.

• Compressor ducts – summer warm air discharge winter warm air to factory
• General ventilation – fans in roofs for factory cooling and air changes
• Office ventilation – where offices are inside an industrial building
• Warm air ducting – from industrial heaters for spot heating or spray booth makeup air
• Ventilation ducting for workforce or process cooling
• Clean room ventilation
• Air control curtains over doorways to prevent heat loss
• Air control curtains within factories to aid process heat control
• Factory canteen cooker canopies and extraction
• Acoustic attenuation

Pleated panel filter G4 and F6 efficiency.
Standard sizes: 600 x 600 x 50, 600h x 300 x 50
Typical uses: Pre filter to higher efficiency filters, Air handling unit filter. Spray room intake filter, process air filter, air conditioning unit filter etc.
Standard sizes in stock. Other sizes to order.

Glass fibre panel filter G2 efficiency.

Standard sizes: 600 x 600 x 50, 600 x 300 x 50, 630 x 500 x 50, 450 x 450 x 50Typical uses: Coarse pre filter for medium efficiency filters, compressor cooling air filter etc.Standard sizes in stock. Other sizes to order.

Filter pockets mounted on a header frame G4 – F6 efficiency.
Standard sizes:
Typical uses: Air handling unit filters.
Made to order.

Rigid Minipleat filter F6-F8 efficiency.
Standard size: 600 x 600 x 300
Typical uses: Replacement for pocket filter, secondary filter
In Stock.

High efficiency particle arrester H10-13 efficiency.
Standard sizes: 600 x 600 x 300, 600 x 300 x 300
Typical uses: Secondary filter to dust collectors, clean room filters, hazardous dust filter.
Standard sizes in stock. Other sizes to order.

PST290 filter roll G4
Standard size: 20m x 2m x 20mm
Uses: Spray room supply air filter, industrial process filter, pre filter etc.
In Stock.

Fibreglass filter roll G2 efficiency
Standard size: 20 m x 2 m x 100 mm, 20 m x 1 m x 100 mm.
Uses: Spray booth filter, process filter, high dust holding pre filter.
In Stock.

Cardboard dry back spray booth filter.
Standard size: 9.2 m x 920 mm
Uses: Dry back spray booth filter.
In Stock

Fibreglass filter roll G2 efficiency
Standard size: 20 m x 2 m x 100 mm, 20 m x 1 m x 100 mm.
Uses: Spray booth filter, process filter, high dust holding pre filter.
In Stock.

Filter roll F5 efficiency.
Standard size: 20m x 2 m x 25 mm
Uses: Spray room supply air filter, pre filter to high efficiency filters etc.
In Stock

Ducting & Flex content coming shortly.

Give us a call to discuss your requirements and find out how we can help.

01626 832007            

• Our Survey Engineers have had a total of over 90 years of LEV surveying experience.
• Our engineers regularly design and project manage the installation of complete LEV systems.
• A full understanding of the design of LEV systems is key in the diagnostic process when systems do not perform as they should.
• Our engineers have specialist knowledge of all filter types, cyclone separators and DSEAR/ATEX regulations.

A typical LEV record would include the following:

• A1 Extraction Ltd, contact details.
• Name &: address of Company responsible for the plant
• Location of the LEV plant
• Description of the LEV plant
• Person responsible for LEV plant
• Date of test, previous test and next test date.
• Process/ substance controlled
• Number of extract points to be used at one time
• Examiner name and signature
• Test equipment used and calibration date.
• Fan details and rotation check.
• Dust collector / filter details
• Dust collector/ filter condition.
• Dust collector cleaning mechanism description and condition
• Filter differential pressure
• Dust particulate reading where filtered air is returned to the workshop.
• Explosion relief condition (if applicable)
• Comments on system design and condition of hoods, ducting etc.
• Airflows, duct velocities, duct sizes, air volumes and face velocities where required.
• Test conditions, combinations of dampers open.
• Assessment of system effectiveness.
• Recommendations to improve performance if required.
• Plant layout schematic showing test points.

• In the course of our LEV surveys we use analogue TA2 anemometers, digital pressure meters, dust lamps and smoke testers.
• A digital particle sampler is used for return air sampling where necessary.
• All our meters are calibrated annually and are checked between calibrations by comparing their readings to the latest calibrated meter. In this way a meter that has become less accurate, is soon identified and is recalibrated.
• Pitot tubes and digital pressure meters are used where highly accurate airflow measurements are required. For example when calibrating production plant and for test equipment.