Duncan Enviro DD30/35

The Enviro DD30 is an accurate double disc air seeder, which is easy to set up and use.

Each vee-shaped double disc assembly has a 380mm diameter scalloped disc which cuts through trash and establishes a tilth while making a slot in the ground. The paired plain disc holds the slot open for the seed and fertiliser placement. A following press wheel, roller or harrows are used to close the slot and create some seed to soil contact for enhanced germination.

Dual 700 litre hoppers are big enough to hold a half tonne bag of fertiliser or grass seed, and the high speed fan ensures seed and fertiliser is carried to the planting discs, even on steep slopes.

The DD drills come in 3m or 3.5m widths and with optional extras such as a crane, slug bait spinner or electric drive, this a very versatile drill.

Seed size:
Small to large
Operation size:
All
Key Features

  • Accurate and versatile seed metering system
  • Large capacity split hopper
  • Double disc with ground following ability
  • Large loading/access platform with safety rails

Scalloped disc and plain disc

Press wheel following the double discs

Metering distribution unit – high and low ratio settings

Technology
Air seed distribution

Our air distribution systems consist of a high-speed hydraulically powered fan, which blows air through a venturi system and distributor heads out to the ground engaging components, which are either discs or tines.

Seed and fertiliser is metered out of the storage hoppers and drops into the passing airstream.

The fan has an oil cooling radiator mounted to the suction inlet which warms and dries the air to minimise blockages in humid conditions.

Air distribution is excellent on hills, uneven terrain or smooth worked ground because the seed is always being blown to the ground, rather than relying on gravity, chatter and hose vibration.

The air hoppers are typically larger than the gravity boxes so they are easier to fill, and air seeders can be wider than gravity drills and easily folded up to a transport width.

Double disc technology

Lower investment cost than a triple disc drill and lower maintenance costs with less wearing parts.

Large 380mm diameter heat treated discs work hard and have a long life.

A scalloped disc leads 30mm ahead of a plain disc to cut through trash and open up a rough slot creating tilth for good germination. The (full assembly) leading scalloped disc removes the need for an opening disc.

The plain disc holds the slot open to place the seed and the fertiliser into the slot.

The spring loaded jump assembly creates downward pressure but also allows the discs to ride up and over rocks and obstacles.

An optional press wheel or harrows close the slot to help with seed to soil contact and traps moisture.

Enviro DD30/35 Specifications

23 Row
3m
27 Row
3.5m
Sowing width (mm) 2875 3375
Overall width (mm) 3070 3570
Length overall (mm) 4100 4100
Height - Working height (mm) 2300 2300
Height - Transport height (mm) 2500 2500
Unladen weight - with press wheels fitted (kg) 2700 3000
Row spacing (mm) 125 125
Hopper capacity (l per side) 700 700
Optional Extras

Please select your extras from the options listed below then click ‘REQUEST A QUOTE’.

Touch screen electric drive for simple and accurate calibration

Duncan drills can now combine our designs which have been proven through years of development with world class control technology.

Most models have the option to fit our new high torque electric drives and a touchscreen electronic rate control, instead of the standard jockey wheel with mechanical drive. This advanced system is simple to use and gives the user instant feedback about the operating state of the drill.

Packed with features, including: 

  • Precision and flexibility to vary planting rates electronically
  • Fingertip calibration adjustments
  • Includes touch-screen control for turning planting on and off
  • Checks drilling rates and areas planted in real time
  • High torque electric motor drives and reduction gearboxes
  • Visual and audible warnings of drilling rates and bin levels
  • Transfer job data between the field and the office using a USB port

Add a GPS aerial for coverage mapping, record keeping and proof of planting.

ISOCAN and ISOBUS controls to integrate with tractor systems
Press wheels
Rear tow bar
Tine harrows
Jack stand
Lighting kit
Rear tow bar
Uni-Roller