Originally launched in 2011, the Evolution fan from Evans & Pearce has proven itself to be a popular choice for pedestal ventilation. Users appreciate the reliability, low-voltage start-up and ease by which the fans can be moved around the grain store. The integral controller is a huge bonus as the unit arrives with automation in place – there are no additional electrician or controller costs.
Motor longevity has been outstanding, with only one failure out of the 700 sold, and Evans & Pearce thinks it may see another surge in interest as the low-energy input attracts people’s attention. Conventional fans for pedestals usually use an 1,100-watt motor, capable of ventilating about 250 tonnes per unit.But, the Evolution fan uses a 350-watt motor to ventilate the same tonnage.
The efficiencies are achieved in two ways:
- brushless motor technology reduces mechanical energy loss when driving the motor; and
- the backward curved impeller has lower energy demands, compared to the forward curved type commonly used in portable grain cooling fans.
Since the introduction of the new Grain Fan Assist controller in 2017, the Evolution fan can also wirelessly control building ventilation fans. In practice the Evolution fan detects running conditions are suitable, turns itself on and engages the building extraction fan to ensure warm air from the crop is expelled from the grain store.
“The system just makes sense when people see it for the first time,” Evans & Pearce managing director Rob White said. “Fans react to grain conditions local to the pedestal. Energy input is low, moving the fan is easier and control is built into the fan, not situated elsewhere in the building.
“The great thing now, compared to 2011, is we have satisfied users out there who can back up our claims that this really is the ‘Smart Grain Fan’. As with all our fan products, the units are built in Devon, with components sourced from the UK and Europe for supply chain stability.”
For more information visit: www.evansandpearce.com.
