Single-Disc Row-unit For Direct Seeding

Single-disc Row-unit

JD750 Type For Direct Seeding

High quality for efficient agricultural production.

Single-disc row-unit advantages

A single-disc row-unit offers significant advantages compared to other types units.

They are more precise and uniform in sowing, more versatile in different soil types, require less maintenance and are more efficient in using seed.

The reduction of variability in depth and distance between grooves translates into greater efficiency and productivity.

In addition, single-disc row-units are an excellent option for those who are looking for efficient and high-quality agricultural production.


You will sow, practically in any type of soil

Single-disc row-unit Argselmash III

The single-disc row-unit is the efficient and cost-effective solution you are looking for for your sowing and fertilizing jobs. 

Its independent descents for seeds, fertilizers and pastures, and its 18″ diameter flat disc with a 7º inclination and 4 ½” x 15″ levelling wheel, make planting precise and uniform, reducing costs and increasing productivity. 

This single disc planting body is ideal for clay soils, especially those with sticky clays, and for saline soils, where it is not desired to stir the soil.

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Save Your Time; Increase Your Profitability With The Single-disc Row-unit!

Single-disc row-unit is prepared for a demanding work sowing and fertilizing

A uniform seeding depth is crucial to achieving a uniform emergence and obtaining higher yields in agricultural production.

The ARGSELMASH III seeding body is designed with adjustment functions that allow each body to be calibrated to the same depth, ensuring uniform seeding and constant emergence.

In addition, this translates into greater efficiency and productivity, cost reduction and reduced maintenance requirements.

Maintenance guide.

Discharge pipes

Independent drops for seeds and fertilizer

Disc Blade

Boron steel 75 RW C, inclination 7º

Firming Wheel

Semi-pneumatic wheel or plastic affirmer.

Depth Control

4 ½ ” x 15”semi-pneumatic wheel.

Furrows closing

Perlitic-ferritic nodular steel wheel.

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ARGSELMASH III Single-disc Row-unit
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Single-disc Row-unit - Main Arm

Cuerpo de siembra monodisco, imagen lateral

The ARGSELMASH III single-disc row-unit stands out for its quality and precision.

The main arm is machined in a single machining center operation, eliminating dimensional errors.

All hubs are made of high-quality steel with a hardness higher than 64 RC, guaranteeing durability.

In addition, the body is painted with two-component polyurethane lacquer to resist chemical attack and corrosion.

Rely on the quality of the ARGSELMASH III single-disc row-unit to improve the efficiency of your agricultural work today!

Seeding Disc - This is where we made the biggest and best changes: 

Cuerpo de siembra monodisco, maza del disco sembrador.
  1. The blade hub was redesigned, now housing DOS TWO LARGER BEARINGS with a higher load coefficient.
  2. New SPLINED SHAFT IS OF LARGER DIAMETER, providing greater tightness thanks to the incorporation of a dust cover that reduces the work of the external lip seals.
  3. A LONGER BUSHING was incorporated into the design, where the splined shaft is housed that extends the guide capacity, giving more solidity to the assembly.
  4. The sealing system of the hub has TWO SEALS, one with external lips and the other conventional, which ensures that in the lubrication process with a grease pump, the seals do not slip due to excessive pressure. It is the only greasing point, ONLY ONCE EVERY 500 HECTARES.

It is the only greasing point.
Only once every 500 hectares.

Leveling Wheel - No more blockages and breaks.
Spend more time seeding.

Cuerpo de siembra monodisco, rotura de rueda de caucho

The rubber wheels have very little durability particularly in fields with soybean stubble.

Another very common problem is in soils with excess moisture and large volume of stubble, is the gauge wheel blocking.

Монодисковый сошник - Уретановое колесо
  1. A URETHANE GAUGE WHEEL is incorporated as part of the base model, eliminating the previous cleaning conical boron steel extension.
  2. A new SIX-SPOKE HUB CENTERwas added.
  3. The hub now has a MAINTENANCE-FREE KRRS double-shielded double-row ball bearing.

Shoe and Seed and Fertilizer Tubes -
No more clogging.

The shoe is built in ferritic nodular cast iron and with hard metal contribution to tungsten on its lower face. It has an internal division with independent channels for seed and fertilizer.

The shoe is now narrower than in our previous model and remains permanently adjusted against the seeding disc avoiding unnecessary soil removal, better conserving moisture.

Cuerpo de siembra monodisco, vista lateral de la zapata

The new design of the shoe allows a more stable planting depth which will allow a quick and uniform emergence, greatly improving your chances of a higher yields.

Cuerpo de siembra monodisco, Tubos de semillas y fertilizante

The seed falls vertically by gravity avoiding the need for a plastic tail.

The tubes are plastic and are jacketed 6 cm inside the shoe, avoiding moisture condensation with the consequent fertilizer clogging.

The square section has the same effect as an anticyclone

Urethane Firming Wheel Thinner Than The Previous Ones.

Cuerpo de siembra monodisco - Rueda pisagranos y tapa
Cuerpo de siembra monodisco - Rueda pisagranos y tapa - Vista trasera

The new urethane wheel is now narrower and more flexible, so it fits better in the furrow, helping to improve the contact of the seeds with the soil and preventing the seed from making contact with the air.

  1. It has a MAINTENANCE-FREE, double-shielded KYY3 bearing, steel on the outside and a Viton seal unit in the second plane (FKM or vinylidene fluoride).
  2. We include a plastic cup that houses a very sharp-lipped  FRONT LIP RETAINER, capable of sealing the deformations of the metal sheet.
  3. On the other side of the wheel, we place a Viton counter-seal that fits on a spacer, which gives the precise height between the arm and the wheel.

These improvements prevent the possibility of garbage ingress.

Capping Wheel - Less weight and better terrain copying.

Single-disc row-unit - Closing wheel

The closing wheel on the row-unit is equipped with a KRRS bearing, the same as the levelling wheel, and is also COMPLETELY MAINTENACE FREE.

The wheel also has two indexing angles, one horizontal and one vertical, which allow the soil removed by the blade to be returned to the furrow and compacted properly, resulting in better plant growth.

Additionally, the centre of the revolution has been relieved to improve the performance of the spring and prevent it from bouncing on the ground.

Are you looking for a solution for sowing in wet and sticky soils?

PLASTIC FIRMER: it has an adjustable plastic spring and two fastening screws that are screwed directly into the shoe.

Lengüeta plástica afirmadora de semillas

The solution to maintaining a uniform depth.
Reduce maintenance time, and costs and increase efficiency and productivity

Cuerpo de siembra monodisco. Detalle del desgaste de l punto de pivot del brazo principal.

The play of the shoe is increased with the passage of the hectares worked, varying the depth where the seeds are placed, affecting the emergence.

Cuerpo de siembra monodisco. Sistema de bloqueo del perno de la zapata

The new locking system of the shoe bolt prevents it from moving, thus avoiding the wear of the pivot point on the main arm.

Overall Dimensions

Single disc row units (Transport position)
Single disc row units (Transport position)
Single disc row units (Working position)
Single disc row units (Working position)

Spare parts catalogue

Single disc row units (Side view)
Single disc row units (Side view)
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