Friday, 12 September 2025 09:55

Lemken sub-soiler helps mix soil, lift structure

Written by  Mark Daniel

Complementing its existing range of tillage implements, German manufacturer Lemken has introduced the new Onyx subsoiler said to offer working depths of up to 60cm, available in two rigid versions offering three and four metre working widths, the MR/300 and MR/400.

Featuring a fully welded frame to ensure stability and durability. the design uses two beams spaced 84cm apart, ensuring easy access and maintenance, while also offering 90cm underframe clearance.

The share system, with a 42.5cm spacing is offered in the OM (Onyx Mixing share) or the OL (Onyx Loosening share) formats, both hardfaced as standard or supplied with a carbide coating option to withstand wear-intensive operating conditions.

The OM share, which is designed to move and intensively mix the soil, is mounted on a curved leg with a guide plate and able to achieve a working depth of 25 to 40cm. Said to be ideal for improving soil structure through medium-depth loosening and subsequent levelling, hydraulic depth adjustment can be operated on-the-move from the tractor, making it ideal for variable operating conditions.

The OL share is mounted on a straight leg designed for deep loosening at working depths between 40 and 60cm. Its action lifts the soil profile, creating cracks due to the weight of the soil itself, breaking up compacted layers such as plough pans, while also improving water infiltration through the resulting micro-cracks.

Both share variants can also be equipped with wings, which depending on soil conditions, can create ensure a wider and more thorough loosening of the soil, as well as improved mixing of organic matter.

For levelling and reconsolidation, the choice of the DSW 580 double spiked roller or the RSW 600 tube bar roller. A quick-change roller system enables the rollers to be changed quickly, providing flexibility in variable soil conditions.

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