Duncan Renovator MK4

The Renovator MK4 is the premium gravity box drill in the range.

Featuring 125mm or 150mm row spacings, the MK4 can be configured for a wide range of jobs, from planting grass in the high rainfall rolling hills of the South Island, to planting cereal crops on the dry plains of Australia.

High capacity boxes coupled with the accurate peg tooth seeder units mean you can sow accurately and for longer with the renowned Renovator reliability.

Sturdy 25mm coil tines with the Baker boot are spaced out over four toolbars for optimum trash flow. Commonly coupled with disc openers and tine harrows, the MK4 will make a beautiful job in the most challenging conditions.

Choose from 3 metre and 3.5 metre models, to sow large hectares in a range of terrain and conditions.

Seed size:
Small to large
Operation size:
From 100Ha
Key Features

  • Large capacity boxes with lids opening to 110°
  • 25mm coil tine and Duncan ‘T’ boot with Tungsten tile on leading edge
  • Weather skirts to cover over the seed and fertiliser metering outlets
  • Large loading platform with safety rails
  • Weigh kit with scales
  • Electronic hectare meter
  • Safety chains
  • Stainless steel agitator shafts
  • Peg roller seeder unit
  • Electric drive off ground following radar is optional

Optional turbo tilth opening disc

Easy to adjust, variable gearbox

Box lids open to 110°

Gravity seed distribution

This reliable system has been utilised on Duncan Drills for decades. It is easy to calibrate and use, requires no tractor hydraulics to run it and it is incredibly accurate due to the seeds being metered from individual outlets for each run.

Seed and fertiliser is stored in a box above the drilling tines or discs and drops into a metering peg roller system with coarse and fine wheels and flow control flaps to handle different seed sizes and sowing rates.

Metered seed and fertiliser then drops down flexible hoses to the point of contact with the ground.

Tine technology

25mm Coil Tine

The tine has minimal sideways movement so that it tracks straight and it will follow an opening disc.

The tine pulls back before it lifts up out of the ground, so it is not placing seed on top of the ground.

Made from solid spring steel with no drilled holes to weaken it so it’s very durable with minimal breakages.

Staggered tine mounting layout to assist trash flow.


Baker Boot

The Baker Boot is replaceable.

The tungsten carbide leading edge with a positive rake angle on the point penetrates the ground and opens up a slot.

The seed and fertiliser are placed at different depths for optimum germination.

The wings & heel of the boot create a cavity containing all of the key ingredients being seed, fertiliser, moisture, air and loose soil which is ideal for fast germination and rapid root development.

Calibration App

Use the Duncan Seed Drill app on your phone for easy and accurate job configuration and calibration of any new or existing Duncan Renovator or Duncan Enviro drill, and take your drilling operations to the next level of productivity.

The Duncan seed drill app contains step-by-step user guides for making calibration and mechanical adjustments to your drill. Great for any new operator or if you're just a bit rusty yourself!

Calibrate multiple machines with the app, and get every operator set up with it too so they can do calibrations from their own phone.

Calibrating a ground drive drill with seed or fertiliser will display the required mechanical settings.

Connect wirelessly to a Duncan E-Drive drill to set up the sowing rates and run calibrations while you are right beside the drill.

Renovator MK4 Specifications

21 Run
24 Run
24 Run
28 Run
Sowing width (mm)3100 3000 3540 3500
Overall width (mm) 3070 3070 3570 3570
Overall length (mm) 3825 3825 3825 3825
Height – Working height (mm) 2145 2145 2145 2145
Height – Transport height (mm) 2430 2430 2430 2430
Weight incl. disc openers (kg) 2030 2160 2360 2490
Row spacing (mm) 147.5 125 147.5 125
Box capacity (l per side)550 550 650 650
Small box capacity (l) 70 70 90 90
Recommended min tractor HP 90 90 100 100
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
Disc openers
Third / small seed box
Tine harrow
Rear tow bar
Stainless steel box(es)
Seed level indicator
Hydraulic cylinder for drawbar
Hydraulic cylinder for disc openers
Baffle extension kit
Lighting kit
Harrow transport kit
Jack stand
Single box models available