Double Disc Seeder

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The King of Double Disc Air Seeders!

Combining Serafin’s existing TLS double disc linkage seeder bar with the popular Narrow Fold seeder frame concept was a simple step forward for our design team to create our Pasture King Model.

This created an air seeder with a narrow transport width of 3.2m, extremely accurate seed placement and narrow row spacings down to 158mm over a single row to keep it compact. It has the versatility and ability to penetrate through heavy compacted soil and to accurately sow over the softest of sandy loams. The tried and tested Tatu double disc row unit has great ground following ability meaning it can handle rocky or undulated conditions better than any seeder on the market.

Complimented with a Gason 3200L mounted seeder that is very compact and easy to calibrate equals  one outstanding unit that can handle it all. Whether it be winter cereal cropping, summer crops or pasture renovation the PastureKing is truly a great all-rounder.


Working Width Rows Row Spacing HP Requirement Seed Box Capacity Disc Size Disc Type Weight
5m 24 208mm 120hp 3,200L 15" Double Disc 5,800kg
5m 32 157mm 140hp 3,200L 15" Double Disc 6,500kg
6m 30 200mm 135hp 3,200L 15" Double Disc 6,400kg
6m 38 157mm 160hp 3,200L 15" Double Disc 6,800kg
7m 44 157mm 185hp 3,200L 15" Double Disc 7,500kg

                                                                           *Prices don’t include delivery, setup, or dealer charges. Prices exclude GST and can be changed without prior notice.*


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Narrow Transport Width

Quick hydraulic folding down to 3.2m means the Pastureking can get around from farm to farm, through narrow gateways without a problem, and no need for an escort on roads.  

It is also a short frame machine with a low box height and a good wheel base so stability on uneven ground is also very good.

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Accurate Seed Placement

Each row unit has its own depth control through what we refer to as a depth limiter. This is a cast ring that bolts to the side of the side, running on the ground and limiting the depth the disc can penetrate.

The depth limiter controls the seeding depth irrespective of the row units adjacent, and the seeding depth is measured exactly where the seedboot is placed.

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The 3PL hitch allows for quick and tight turns at the headlands, the short frame keeps it nimble and the quick fold means you can get it around your property easily and safely.

The 3PL hitch is also nice and easy to connect up to your tractor!

Serafin PastureKing double disc no-till seeder

Quality Strong Frame

Built from a high quality, locally manufactured frame of 200x200x9.5mm wing sections and 200x100x9.5mm chassis section. 

The frame is fully powder coated in the 3 stage process including an undercoat which adds to the robustness of the finish.

Serafin PastureKing double disc no-till seeder

Tatu Row Units

2x 15″ double discs with a long, triple spring design allows for unmatched ground following. The cast closing wheel ensures excellent seed to soil contact and that the seed slot is closed effectively. The two discs are on a 6 degree angle to one another which means low soil disturbance and an excellent no-till seeding job.

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Ground Following

The secret to the Pastureking’s success is the massive amount of travel in the row units allowing it to work in the most challenging, undulating conditions. 

The triple springs allow each unit to independently travel 400mm vertically without effecting the unit next to it. It is also great for raised beds in irrigation situations.

Customer Testimonial Video

We've had very good results, good germination and we are very happy with the PastureKing overall.

Denis Harrington, Ararat Victoria


Rear pivot update of Tatu units 2

The Closing Wheel Pivot has now been upgraded to a new sealed bearing and axle system rather than the old greasable shaft style. It is very similar to the Rear Pivot Upgrade Option which proved very successful.

Rear pivot update of Tatu units 1

This update to the unit has reduced the amount of grease nipples on each units down to just one. It will make the unit a lot more robust & a lot less maintenance. This is standard on any new machine from 2021 onwards.


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D-Cup Diffusers

To avoid seed bounce and to allow the operator to run their airbox fan faster, we can fit up the Plastic D-Cup diffusers on a special mounting bar with rubber drop down hoses. This is an excellent option for those doing cereals, pasture and canola.

Serafin Ultisow NarrowFold NF loading auger

Grainline Loading Auger

The Pastureking is now available with a Grainline 5″ loading auger system which consists of a 5.5m folding auger with swing away mounting bracket and poly hopper. It also includes a hydraulic drive valve from the Gason Fan for simple operation.

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Farmscan QuadCam

Available on almost any seeder, the Farmscan QuadCam system comes with the large 9″ QuadCam display and up to 4x Infa-Red (IR) camera that can be mounted inside the seed box or anywhere else on the seeder that you wish to monitor. 


1230IM Black Series


Featuring a 3,200lt 2 bin with 50/50 split, fully variable rate with electric drive, Series One metering system, and a Farmscan 7500 touch screen as standard. It is simple to operate, easy to calibrate & accurate.

There are many options for this including different monitor options and blockage sensor kits. The 380L pasture box is optional.

It also has a low oil requirement of 75L / min.

Farmscan 7500
Standard Farmscan 7500 touchscreen controller

Common options for Gason 1230IM

Topcon Apollo ISO kit

Topcon Apollo ISO kit that will work with any ISO terminal such as the John Deere Gen 4 terminal, ISO ready TRIMBLE screens or Topcon X35 displays.  This does away with the standard Farmscan 7500 controller.

Pasture Planter

Separate 380lt Pasture Planter. This can be plumbed into the main seed tube, with Serafin’s Individual Small Seed Placement kit OR with a combination of both.

Gason Air warmer kit 

Gason Air warmer kit which heats the air by taking heat from the hydraulic oil thus reducing potential for damp air causing fertilizer blockages.

Other Machine Options

Contact Serafin Machinery's sales team

Want to talk about customisation, or just have a few questions?

Don’t hesitate to get in touch with our sales team. 

Serafin Machinery Staff Rodney Dunn
Rodney dunn
Sales Manager
0488 644 777
Serafin Machinery Staff Denis Aramini
Denis Aramini


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