Skip to main content
StocksAg Fan Jet Duo mounted to a Chafer Sprayer

Fan Jet Duo

Consisting of two applicators running in tandem the Fan Jet Duo is typically used to broadcast slug pellets, up to a maximum of 36m (product and mounted height dependent).

Typically, the Duo is mounted to self-propelled sprayers. However, the Duo can also be mounted to tractor front linkages and UTV’s. (UTV vehicles subject to electrical power output). It can be rear mounted, although not recommended, on sprayer booms due to its weight.

Stocks Fan Jet Duo
  • FAN JET DUO (VS-2 Control)
  • FAN JET DUO (TM Control)
  • Spread width up to 36m
  • Adjustable Speed related application with TM
  • Easy, quick, stepless adjustment of bias left or right
  • Easy emptying of hopper
  • Disc speed adjustment to limit spread
  • Mostly used on sprayer or UTV
  • 5000 rpm disc motor
  • Stainless steel four-vane spinning disc
  • Electric motor adjustment of application rate
  • 12v 60A Power requirement
  • In cab electric controls. Instant feed shut off
  • 5m fused power and 6m connector cable included
  • Robust construction with high-quality motors
  • 65 or 130 litre plastic hopper
  • Optional feed rollers available
Stocks Fan Jet Duo mounted to HE-VA Cambridge Rolls



Two Control Options



The VS-2 offers a simple but effective manually operated electric control of both applicators.

Application rates are set by a combination of feed roller type and speed. Both can be changed on the move from the tractor seat using a simple dial control.

With optional GPS, the VS-2 can regulate the speed of the feed motor according to forward speed to maintain the selected application rate. This option has an audio visual alarm to alert the operator of any malfunction.

Fan Jet Duo VS-2 Control Box
  • Switch 1 - feed motor on/off
  • Switch 2 - feed motors left/right
  • Switch 3 - feed motor speed range adjustment
  • Middle dial - feed motor speed adjustment
  • Switch 4 - spinning disc speed
  • Right dial - disc motor speed control
  • Includes alarm lights

Supplied with a 4.3” colour touchscreen, the sophisticated TM controller has an intuitive layout; displaying the application rate, spread width and forward speed for each unit.

The TM provides cutting edge features such as section control and headland control. It is also capable of applying variable rates in conjunction with an uploaded precision farming map, clearly shown in real time on the control screen.

Fan Jet Duo TM Control Screen
  • 4.3” colour touchscreen
  • 4 screens – home, parameters, details and mapping
  • Forward-speed related metering with GPS
  • Variable rate application (in conjunction with uploaded precision map)
  • Records each job/field and stores in memory

The application rate is automatically controlled. The software can be programmed to record each job/field, allowing calibration settings and application rates to be ‘remembered’ for future use.


Most commonly mounted to the chassis of self-propelled sprayers the Duo can also be fitted to a tractor front linkage or to a UTV, subject to electrical power output.

Both electrical power and height above crop of the spinning disc can be limiting factors in spread width - e.g. a Duo mounted to a UTV has a spread width of 32m, due to the height of the UTV.

An optional front mounting beam positions the applicators at 1.9m apart centre to centre.

The Duo can be rear mounted, although not recommended, on sprayer booms due to its weight.

Fan Jet Duo mounting frames for self-propelled sprayers and UTV's


The applicators should be lowered for safe filling and emptying as well as the calibration of each applicator and then raised to a working height of 2m.


An optional calibration aid, a steel chute is easily attached and collects and deflects the product being spread into a user provided nag for weighing during calibration checks. The calibration aid is supplied as standard with all i-CON models.


All Fan Jet models can be supplied with optional waterproof covers for use when out of work.



Check out our latest full brochure by clicking the image below, download is available


Wisbech is still the home of Stocks Ag. All applicators are fabricated, assembled and painted in the Cambridgeshire factory. Precision assembly and quality control are paramount to the production process.

The R & D team work with both the factory and farmers to deliver a seeding solution that is fit for current farming practices.

Made in Britain

Cookie Notice

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.
Find out more here.