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StocksAg Turbo Jet on HE-VA Combi-Disc

Turbo Jet Range

The Turbo Jet is a versatile and accurate pneumatic applicator and seeder and will deliver product up to 10m working width. The Turbo Jet 8 has eight outlets and the Turbo Jet 10 has ten outlets. 

Commonly used for applying clover seed, full-rate grass reseeds, Avadex, OSR and cover crops, the Turbo Jet can be calibrated to apply precise rates across a wide range of products from 1kg/ha to more than 100kg/ha (dependent on product, working width and forward speed). It can be fitted to a wide variety of machines, from grass harrows to cultivators and rolls, as well as being employed as an additional applicator on a grain drill.

Combining the functionality of other machines with one or multiple Turbo Jets creates a one pass machine, thereby reducing workload and thus saving time and money.

StocksAg Turbo Jet VS-2
  • TURBO JET 8 & 10 (VS-2 Control)
  • TURBO JET 8 & 10 (i-CON Control)
  • Up to 10m working width

  • 240 or 400 litre hopper

  • 5m fused battery power cable and 5m connector and power cables

  • Agitator included as standard

  • Distribution/spreading kit included available as an option

  • Small or large seed and granular (e.g. Avadex) feed block kits available


Turbo Jet fitted to a Mzuri Drill






The VS-2 (Vari-Speed-2) is a simple, low cost method of metering seed and granules in proportion to a constant fixed forward speed.

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.

Turbo Jet VS-2 Control Box
  • Left hand toggle switch - calibrates to actual forward speed
  • Middle toggle switch - main power on/off
  • Right hand toggle - 3 positions (low 1-12, med 13-24 & high 25-36)
  • Dial - positions 1 – 12
  • Right hand toggle & dial - feed motor speed adjustment – 36 different motor speeds
  • LED lights - indicate on/off status or problems with the fan/hopper level contents/feed motor/agitator as indicated

Rates are automatically controlled in proportion to forward speed for ultimate accuracy, and the machine can apply variable rates according to mapping data using a GPS based touch screen*.

*subject to unlock fee

i-CON Control Box for Stocks Turbo Jet
  • 4.3" colour touch screen with 4 basic menu keys
  • Seed application rate kg/ha or seeds/m²
  • Pre-start - ensures seed delivery begins as soon as the drill enters work
  • Rate nudge – on the move adjustment in pre-set increments
  • Forward speed km/hr
  • Min/max forward speed indicator with alarms
  • Metering unit status (on/off) and alarm
  • Fan status (on/off) and alarm
  • Hopper contents (kg) and low level alarm
  • Part, full job and grand totals for area (ha), product dispensed (kg) and hours worked
  • ISOBUS compatibility kit available

Turbo Jet 8 VS-2 / Turbo Jet 10 VS-2

Powerful 12v electric fan
  • Twin electric 12v electric fans
  • Working width up to 8m
  • High application rates at fast forward speeds
  • Maximises capacity of 32mm seed pipe
  • Easy access
  • Mesh guard to protect against blockages from straw and chaff

Turbo Jet 8 i-CON / Turbo Jet 10 i-CON

High output digital brushless 12v electric fan - Turbo Jet
  • Twin digital brushless 12v electric fans, IP68 rated (water and dust resistant) 
  • Working width up to 10m
  • Two stage soft start to smooth power requirement
  • Anti-stall fans with self-diagnostic test
  • Maximises capacity of 32mm seed pipe
  • Easy access
  • Mesh guard to protect against blockages from straw and chaff



Working width is largely determined by the type of fan and control system selected along with the type of product.

All VS-2 controlled models and the Turbo Jet 8 i-CON have a maximum working width of 8m.

The Turbo Jet 10 i-CON machines can spread up to 10m.

Whichever model is chosen the high-capacity electric fans ensure a reliable spread and the versatile feed mechanism easily adapts for different rates and products.


The internal diameter of the seed hose is 32mm, considerably greater than most alternatives. A wider diameter hose reduces back pressure and improves air flow, enabling higher application rates at higher forward speeds. A wider diameter hose also reduces the risk of blockages.

Stocks Applicator Seed Hose



Each delivery hose can be split into two using Y connectors so, 8 outlets becomes 16 and 10 outlets becomes 20.

Y connectors to split hoses from one outlet, to two outlets

The number of hoses will depend on the product being applied, the implement width and type and the decision to broadcast or band sow.


The robust design of the spreader plates prevents any distortion and ensures a consistent even spread pattern.

Stocks outlet spreader plates

Outlets are securely attached to a mounting rail and seed hose and removable bottom plates allow both band and broadcast sowing.


Fluted feed rollers on a stainless steel shaft are driven by a 12 volt electric motor. All Turbo Jets are offered with small or large seed and granular (e.g. Avadex) feed block kits. 

An agitator, powered by a separate electric motor is fitted inside the hopper base to prevent seeds bridging, and to ensure a constant flow of seed to the feed rollers.

The feed block is easily removed from the machine body. A variety of feed roller segments can be supplied, allowing multiple configurations, to suit a wide range of applications. They are easily changed as required.



Individual feed rolls for each outlet ensure accuracy down to very low rates.

Typically used for OSR, clover, mustard, turnips and slug pellets.

Standard seed roller for a Turbo Jet

High capacity feed rollers are supplied to meter high rates of both large and small seeds. 

Typically used for grass and cover crops at e.g. 40 kgs/ha at 6m wide at 12kph. 

Turbo Jet grass seed roller

Typically used for granular products e.g. Avadex. 

Turbo Jet Avadex roller


Managing and controlling grassweeds such as blackgrass continues to be a challenge for many farmers.

Although other control methods such as widening rotations, low-disturbance tillage, delayed Autumn drilling or ploughing every set number of years are common additional methods of control, applying blackgrass herbicides such as Avadex continues to be a strong weapon in the armoury.

Due to the Turbo Jet’s precision metring ability and the consistent, even spread pattern achieved from the spreader plates, this makes it an applicator of choice for applying Avadex, used by farmers and OE manufacturers, including Sky Agriculture. When working over 6m, the Turbo Jet 10 has a coefficient of variation (CV) of less than 5% (NSTS test carried out by SCS).

A key factor to consider when applying Avadex, is to have the applicator mounted correctly, which will allow for the best chance to combat blackgrass effectively. To learn more about the best way to mount an Avadex applicator to your Cambridge rolls or drill ahead of the next drilling season, click here.  

Turbo Jet 10 i-CON Avadex Applicator on Sky Agriculture EasyDrill



Turbo Jet VS-2 on HE-VA Grass Harrows


Control system VS-2 i-CON VS-2 i-CON
Number of outlets 8 8 10 10
Maximum working width up to 8m up to 8m up to 8m up to 10m
Twin electric 12v fans YES - YES -
Twin digital 12v brushless fans - YES - YES
Colour touch screen control - YES - YES
Hopper agitator YES YES YES YES
Distribution/ spreading kit optional YES YES YES YES
Calibration tray YES YES YES YES
Hopper capacity (Litre) 240/400 240/400 240/400 240/400
Small/large seed and granular (Avadex) feed blocks YES YES YES YES
Maximum number of outlets 16 16 20 20
Forward speed GPS Option YES Option YES
Precision farming/ Variable rate - Option - Option
In/out work sensor/switch Option YES Option YES
Hopper level sensor Option YES Option YES
Hopper cover Option Option Option Option
Weight 240L (400L) approx. empty weight 120kg (130kg) 120kg (130kg) 120kg (130kg) 120kg (130kg)
Dimensions 240L (400L) - W x D x H 66 x 100
x 116 (143cm)
66 x 100
x 116 (143cm)
66 x 100
x 116 (143cm)
66 x 100
x 116 (143cm)
Paint to match machine Option Option Option Option

Supplied with:

5m fused battery power cable and 6m connector cable are supplied as standard.

Power requirement:

12 volts DC – 20 amps.

*Avadex ® is a Trademark used under licence by Gowan Crop Protection Ltd



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

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