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Rolling Stock HVAC Case Study

Schaltbau Transportation UK are a mechanical and electrical engineering company that provide a full overhaul package to bring rolling stock HVAC systems and products back to day one condition. Their dedicated HVAC team are available to support all maintenance requirements at their facility in Milton Keynes or via their mobile service team at customers’ sites. They will provide analysis of the systems, make recommendations for improved performance and reliability and will handle obsolescence issues. Schaltbau approached Axair looking for co...


Fans for Spray Booth Extracts

Manufacturers of spray booths need to ensure that they have effective ventilation for two main reasons; to protect spray booth operators by extracting paint fumes and to ensure the best paint finish possible by removing excess particles of the paint spray. During the spray process, paint particles are released into the atmosphere through the spray nozzle which increases the release of potentially hazardous vapours and paint particles. Professional spray paints and lacquers often contain volatile organic compounds which are emitted as gases. ...


ATEX Fume Extraction for Landfill Organic Waste

Landfill gas is a natural byproduct of the decomposition of organic materials which are put into landfill. The gas is composed of roughly 50% methane (CH4) and 50% carbon dioxide (CO2) and a small amount of non-methane organic compounds. Methane is a potent greenhouse gas and is harmful to the environment. When organic waste is first deposited into landfill, it goes through the initial stages of decomposition where small amounts of methane are generated. As the conditions change during the subsequent stages of decomposition, an increase ...


A Sweet Outcome: Stainless Steel ATEX Fan Case Study

Axair were recently tasked with finding an air movement solution for a major producer of throat and cough sweets. The customer, with a site based in the centre of a rural town, employs more than 200 people and was established over 200 years ago. The Problem A review of the company’s manufacturing processes revealed that the method of producing throat lozenges, using a powered starch mold process, has the potential to cause an explosion. Starch powder, like many food based powders used in the food processing industry, has the potentia...


Axair Fans For The Rail Industry & Rolling Stock

Modern rail transport technology has a great demand for high-quality fans worldwide. These specially designed fans are used in underground and suburban railways, regional and high speed trains for the cooling of traction engines, transformers, electronics and air-conditioners. Our fans have successfully been in used in these demanding applications on every for many years and meet the most diverse requirements with regard to mechanical shock, temperature range and power supply. Specific rail fan developments enable smooth operation with: v...


Understanding the Basic Fan Laws

Geoff Edwards, the technical product engineer at Axair Fans UK Limited, explains the three basic fan laws when applied to warehouse ventilation studies. The Fan Laws are a group of useful equations for determining the effects of a change in the speed, the diameter of the fan and the density of air in the system. They are most useful for determining the impact of extrapolating from a known fan performance to a desired performance. So, in short, the basic fan laws are used to express the relationship between fan performance and power. To ...


Why Refurbish AHU’s with EC Plug Fans

Old buildings can often feature outdated and deteriorating ventilation systems. The first opinion may be to replace the entire air handling unit, but often refurbishing the components within the system can prove beneficial beyond financial gain. This week we look at the advantages of AHU refurbishment over replacing the entire system. One major problem in favour of refurbishment is that of the existing system. Ductwork and max air volume delivery are often governed by the existing ventilation system, so the new one must comply with these sp...


Industrial Fans for Dust & Solid Transportation

Industrial and manufacturing processes and procedures can often produce hazardous and combustible airborne particles such as dust. This particulate must be extracted out of the working environment in order to protect other processes and any susceptible personnel. Axair, in partnership with Casals Ventilation, can supply a range of fans that can be utilised in local extract or multi-point ducted systems to remove these particles safely and efficiently. Material handling fans are required where dust, solid and bulky materials need to be handle...


We Make it A White Christmas with Snow Business

Christmas adverts, retail window displays and seasonal films are always complemented by a layer of white, freshly laid snow. As many of you will know, this snow isn’t real, and artificial snow and effects are big business. As the saying goes….there’s no business like show business…. Or in this case Snow Business. Throughout the year we have and continue to work with the company that helps to add an essential Christmas ingredient to many of these ads and displays by quite literally, making it snow! Based in Stroud, Gloucestershire,...


Effective Redundancy by Running Fans in Parallel

The air handling unit market is under constant pressure from all sides; pressure from the end user to improve indoor air quality, pressure from architects to provide more comfort and to produce more aesthetically pleasing units but also from energy consultants who demand manufacturers to deliver energy efficient units with higher airflow performance and pressures at lower installation and operating costs. Commercial heating and ventilating represent a major proportion of any construction budget, frequently comprising ten percent or more of t...