Newland Design Ltd

Newland Design are the creators of the Newland Electric Atomizer, an advanced innovation which facilitates the production of small liquid droplets by means of high speed rotation, without need of compressed air or any high pressure. The Atomizer generates equally sized droplets in a low-impact spray cloud which can used for humidification, moisturisation, evaporative cooling, emulsification, dust suppression, odourising, de-odourising, gas scrubbing and much more.
 
It consists of a high-speed electric motor that rotates a porous cylinder at speeds of up to 35,000 rpm. The liquid which is fed into the system runs down the inside of a hollow shaft and into this cylinder, where the centrifugal forces drive it through the porous material and spread it evenly on the cylinder’s surface. The shearing action of the air against the rotating surface atomizes the liquid into tiny droplets of equal or similar sizes. It creates a circular low-impact spray cloud which can be adjusted and controlled by alteration of the motor speed.
 
The Newland Atomizer can handle up to 20 litres of liquid per hour and can operate in temperatures as high as 70°C. All liquid-contacting components are made with stainless steel or polypropylene, and all of the porous parts can be disposed of and replaced as and when required. The Atomizer requires a low voltage DC 10-25V (2 Amps max) supply and consumes less than 50 Watts, making it a highly efficient, economical device. 

How it Works

The Newland Atomizer has a hollow shaft through which a stationary feed tube conveys the input liquid to the lower part of the shaft. When it reaches this point, a small polypropylene extension called the spray tip distributes it through the cross-drilled section of the shaft, and then to the porous spray head.  As the liquid reaches the outer surface of the spray head, the shearing action of the air atomizes it into small droplets of equal or similar size.

Mounting & Handling the Atomizer

The Newland Atomizer is usually operated in a vertical position with the liquid input at the top and the spray head at the bottom. However, it can also be operated horizontally if needed. Upside-down operation is not recommended.

Because of its high rotational speed, the Atomizer can give off a lot of noise and vibration if it is not correctly mounted. Newland offers a mounting kit built specifically for the Atomizer which reduces vibration and makes operation far more convenient and comfortable. Please get in touch to find out more.

Electrical Supply

The Newland Atomizer runs on a supply of DC 10-25 Volts (maximum 30 VDC). The motor within is a brushless DC motor which will not operate on a reverse-polarity supply. The speed of rotation depends on the voltage applied, though maximum speed is limited to approximately 35,000 rpm. The Newland Atomizer can be powered by battery – its low power consumption (less than 50 Watts) gives long periods of operation between recharges.

Liquid Supply

The Atomizer requires no significant input pressure. In most cases, a reservoir just above the unit is sufficient, as this allows gravity to feed the liquid at a suitable pressure. Though the Atomizer is unlikely to be damaged by pressure itself, it can however be damaged by excessive flow. It is therefore important to keep a close control over flow rate and restrict it to less than 20 litres per hour. Any rate above 25 litres per hour has the potential to cause damage to the Atomizer’s seals and bearings. If the feed liquid contains a high amount of undissolved particulates, it will require filtration before entering the Atomizer’s feed system.

Atomization Performance

The size of liquid droplets produced by the Newland Atomizer is dependent on rotation, speed, flow rate and liquid surface tension. Generally, the higher the speed, the smaller the droplet size. Lower flow rates and low surface tension also tend to reduce the droplet size. When supplied with pure water at minimal input pressure, an Atomizer with a standard feed tube will have a flow rate of around 5 litres per hour, and on a 24 Volt DC supply will run at about 35,000 rpm. Based on these conditions, the average droplet diameter will be around 35 micrometres.

Cleaning and Maintenance

Unless the Atomizer’s feed tube is regularly fed with liquids containing large particles, it is highly unlikely to become blocked. However, if there are significant amounts of undissolved solids present in the liquid, then filtration should be included in the process before input. In the event of a sudden blockage or loss of flow, the feed tube ought to be inspected first. For more information on Atomizer cleaning and maintenance, please visit the Newland Design website.

Company Information

Newland Design was established by Neil Cochrane in 1985. Full time trading began in 1990 when the company began developing brushless DC motor technologies for industry. In 1994, Newland acquired the rights to develop the porous-head atomizer from Cranfield University, Bedford, and three years later the Newland Atomizer was launched. A major redesign took place in 2000, but since then the Atomizer has remained for most part unchanged.  The assembly of the Atomizer and its accessories takes place in our Lancashire facility using subcomponents mostly sourced from within the United Kingdom.

Installation

For full instructions on how to mount, connect and operate the Newland Atomizer, please visit our website where a comprehensive instruction manual can be downloaded.

If you have any other questions, please do not hesitate to get in touch.