TDNG 320  

Double Disc Seeder

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The Perfect 'All Rounder'

The TDNG 320 is a fan favourite because of the sowing width, weight, price and tractor HP requirements. It fits neatly into the market for those wanting a little more width than a 300e but without the price tag or the HP needs of the 420. 

It has the same row units as all of the TDNG models which provides excellent seed placement, outstanding ground following ability and it has the same weight per opener as the bigger models. 

Perfect for over-sowing pastures, direct drilling winter cereals into standing stubble and placing the seeder into hilly, undulating country where others dare to tread.


Model Rows Working Width Transport Width Row Spacing HP Required Box Capacity Weight RRP ex GST
End Tow 20 3.4m - Approx 11ft 3.2m - approx 10 1/2ft 170mm - 6 3/4" 105hp 1,800L Combined 6,800kg $108,600.00
No End Tow 20 3.4m - Approx 11ft 4.73m - Approx 15 1/2ft 170mm - 6 3/4" 100hp 1,800L Combined 5,600kg POA

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


Small Seeds & Pasture

The TDNG 320 comes fitted standard with an 110L small seeds / pasture seed box. It can handle a large range of grass and small seeds with accuracy at low rates. It is easy to calibrate and you can change rates with one simple adjuster handle. 

Being able to sow at a consistent depth without distrubing the soil around the seed ensures that the TDNG is an excellent opener for over-sowing pastures.

Narrow transport width

The TDNG 320 has has an optional hydraulic end tow kit which allows the seeder to be transported laterally via two 275/80R22.5 transport wheels. 

The machine is able to be changed from working position to the transport position from inside the cab of the tractor. Not only is it quick but it is also a lot safer than other end tow systems on the market.

TDNG 300e inside of fertiliser box

Large capacity

Boasting a 1,800L seed & fert box capacity which is class leading for 20 row machines, but it is also fitted with a removable plate inside the seed/fert box that allows the user to change the individual capacities of each box. 

Add on the 110L small seed box and this will ensure that you can keep sowing for longer & being more productive.

It also has easy access to the seed, fertiliser and small seed boxes from the rear catwalk with the fold down steps and solid hand rails all round.



Weight for penetration

One thing a lot of cheaper double disc seeders lack is the physical weight to get the double disc opener to penetrate into hard soils. Sowing dry is almost impossible with some other machines but not this little tank. 

Weighing at almost 7 tonne the TDNG 320 can work in the hardest conditions whilst being versatile enough to sow into the softest ground too!

Ground following ability

With its 400mm of vertical travel (indivudally) on each row unit means that the TDNG 320 has the best ground following of any 3.4m disc seeders on the market. 

This relates to the seeder being able to keep constant contact with the ground, ensuring accurate seed placement even in the most challenging environments.


Accurate seeding depth

Coupled with the TDNG row units amazing ground following is the fact that the disc opener runs a solid depth limiter on each unit ensuring accurate seeding depth. 

A depth limiter is a cast narrow wheel that is bolted directly onto the side of the disc opener on one side, limiting the amount of disc is able to penetrate the ground, keeping the seeding depth constant. This is right next to the seed boot so you can be sure of the best seed placement available on any disc opener.


TDNG row unit

TDNG row unit

15″ & 16″ double disc blades 

Bolt on depth limiter ring – 15mm, 25mm, 40mm and 60mm available

Depth Limiter Mud Scraper to keep the depth limiter clean for accurate sowing depth

Fully adjustable Closing wheel – modify weight, down pressure and position for flexibility in different conditions

Long, triple spring design for maximum articulation and down pressure whilst remaining flexible to work in soft conditions

Telescopic seed tubes to ensure excellent flow, long life and maximum row unit flexibility up and down.

We have done summer crops, winter crops and pastures. We've had really great germination from all of the sowing we have done with the Semeato.

Scott McIntyre, VIC


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

Enquire about the SEMEATO TDNG 320 DOUBLE DISC SEEDER 20 Row

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