Crop Cooling and Ventilation

Complete Standard Polycool Pedestal

3.5m (11' 6") overall height
1.2m x 450mm base, + 0.35m Reducing Cone, + 2 x 1m Top Pipe, Top Cap

Fan: VBW7 normally used with Standard Polycool pedestal (see below)
or for new users Evolution Fan (see below)

Mini Polycool Pedestal

2.9m (9' 6") overall height
0.6m x 450mm base, + 0.35m Reducing Cone, + 2 x 1m 150mm Top Pipe, Top Cap

Fans: VBL6/3 or VBW7 normally used with Mini Polycool pedestal (see below)

Maxi Polycool Pedestal

6.3m (20' 8") overall height

2m x 450mm base, + 0.35 reducing cone, + 4m x 200mm Top Pipe, Top Cap

Fan: VBW9 fan normally used. (see below)

Extensions/Extras to increase height up to 20ft

1m Height Extension: Diameter 150mm / 200mm

2m Height Extension: Diameter 150mm / 200mm

Couplers for Extensions

Pedestal Top Caps

For Cooling Oilseed Rape — Please specify whether you require pedestals for Oilseed rape when discussing your needs.
Oilseed rape is five times the density of cereals and this should be taken into account in determining layout and airflow.

Rape Skirts (filters) are available made from strong hessian.

450mm Base Polycool Pedestals achieve unrestricted airflow & are the strongest on the UK market!

Tough Enough?

'CropCool' Differential Temperature Controller
for Pedestal Fans

Don't give Grain storage Insects a Chance!

• Only runs fans when Ambient Air is cooler than the crop
• Save valuable time switching Fans On/Off
• Speed up grain temperature reduction
• Saves 40% electricity on unnecessary fan running (HGCA research)
• Displays fan running hours – to help meet HGCA recommendations as well as air, grain and differential temperature. Can also be used as a time clock.

'CropCool' constantly compares ambient air temperature to your grain temperature, and will use every available opportunity to reduce your grain temperatures(to prevent insects from breeding, following HGCA guidelines).

The system is easy to operate and it is available for single or 3-phase fans.

The AgriSupplyServices single phase CropCool is fully portable.

Full laminated instructions provided.

'CropCool' has been specifically designed to operate up to 2 Pedestal Fans (1.1Kw, 1.5HP each) from a single 13amp plug.

2m Fibreglass Grain Temperature Probe, which makes insertion into the crop much easier is supplied as standard. (Also available as an extra for existing users.)

Extras

Humidity Sensor, to control fans before temperature, should this be needed for certain applications. Please discuss with Agricultural Supply Services.

HGCA Advice

To make the Best Use of Polycool Pedestals Click Here
(HGCA Topic Sheet 78, courtesy of HGCA).

See also "Vertical ventilation for cooling grain" Click Here
(HGCA Topic Sheet 53)

Hotspot Spears

7ft 7in. "Trouble Shooter" with heavy duty handle suitable for cereals (fan not included, see below).

Also available: "Trouble Shooter" with smaller holes for Oilseed Rape.

Click for Large Image

VBW7 Polycool Fully Reversible Fan
(Suck or blow)

Standard Pedestal Fan, 151mm spigot,single phase (up to 1000CFM) 1.5Hp. 1.1Kw. Standard to fit 150mm pipe. Select single or 3-phase.

Evolution Fan (1000 cfm) 0.36 kW

200mm spigot. Incorporates differential temperature controller.

Uses new technology to match VBW7 performance with 30% power improvement.

Fits on pedestal with 200mm Top Pipe. Exhaust only.

VBL 5/3 Fan

Basic Trouble Shooter fan; 1/5 hp 0.1 kW. Will ventilate 20-25 tonnes of grain. Exhaust only

VBL 6/3 Fan

High Capacity Trouble Shooter fan; 1/3 hp 0.25kW. Will ventilate 50-60 tonnes of grain. Exhaust only.

Standard fan for Mini Pedestal.

VBL 8/3 Fan

High Capacity Fan for Mini Pedestals – 330 cfm 0.36kW.

+ Hotspot Spear for Oilseed Rape.

Low Capacity Fan for Standard Pedestals.

Exhaust only.

VBW9 Fan

2.2KW 3-phase 200mm spigot (2400cfm to 1400cfm), to fit 200mm pipe.

The Hydor Belt Drive fan unit is specifically designed to ventilate larger buildings, by moving substantial amounts of air at low pressure with minimal energy consumption.

Available in three sizes of diameter each with single or three phase motors and the option of louvres and guards:

• 800mm
• 1000mm
• 1250mm

Constructed from galvanised steel with a specially designed stainless steel propeller, these fans are extremely hard wearing and robust in application. The drive mechanism comprises of a sealed for life maintenance free ball bearings, which means low noise and vibration levels.

The HV Range incorporates a centrifugal operated back draught shutter or an automatic louvre shutter.

Units are supplied fully assembled complete with standard safety guards.

Automatic Operation of HV Range - The manufacturers can supply automatic control systems or it can be operated from a spare 'CropCool' Differential Temperature Controller socket - click here for 'CropCool' - thus synchronizing HV Fan operation
with Pedestal fan operation to minimize energy usage.

Click to download leaflet

Contact us to seek advice about the High Volume Fan size needed to suit your building application. Please provide building dimensions (including approximate height to apex) & grain depth.

Louvre to match High Volume Fan at opposite end of building.

Louvres to match the High Volume Fan may be needed to ensure free airflow. These can
be fixed or in area of high winds & gusts can be supplied with back-draft shutters, which
automatically close when fan is not in operation.

Used to Measure & Check Airflow, this is an
essential tool in Bulk Grainstores using High Volume Ventilation.