Improve Drainage and Soil Structure
Relieve Compaction While Preserving Grassland.
The Sumo Grassland Subsoiler (GLS) is designed to alleviate subsoil compaction by opening the sward and lifting the soil to improve drainage and airflow. Serrated rubber-mounted discs open the ground ahead of the low-disturbance leg, which lifts the soil to relieve compaction. A flat roller firms the ground, while its teeth aerate the sward, leaving grassland productive and resilient.
Best For: Relieving subsoil compaction in permanent grassland, Improving drainage and water infiltration and Supporting healthy root growth for productive pastures
Ideal Conditions: Heavy or compacted grassland soils, Fields prone to waterlogging or poor aeration and Farms adopting regenerative grazing or pasture management practices


Perfect for:
Available in Mounted Versions
With working widths from 2.3m to 2.8m and adjustable leg spacing, the GLS can be tailored to different soil types and grassland conditions.
See Sumo In Action
Contact your local dealer to arrange a demo on your farm.
Key Features:

“The GLS has transformed our grassland. Water drains better, roots go deeper, and the sward stays intact — our pastures have never been healthier.”
Oliver James, Herefordshire Farmer



For farmers who want to relieve subsoil compaction, improve drainage, and aerate grassland while preserving the sward and maintaining long-term pasture productivity.
Agronomic Benefits:
Specifications
| Product Specification | GLS 3 A/R | GLS 4 A/R | GLS 5 A/R |
|---|---|---|---|
| Code | GLS3 | GLS4 | GLS5 |
| Working Width | 2.3m | 2.3m | 2.8m |
| Transport Width | 2.50m | 2.50m | 2.90m |
| No. of Legs | 3 | 4 | 5 |
| Leg Spacing | 833mm | 580mm | 580mm |
| No. of Discs | 3 | 4 | 5 |
| Maximum Working Depth | 350mm | 350mm | 350mm |
| Maximum HP | 200hp | 220hp | 250hp |
| Weight | 1,490kg | 1,625kg | 1,875kg |
Your Complete Reference to the Sumo Machinery Range
Looking to upgrade your cultivation equipment or explore what’s new? The Sumo Product Guide is your go-to resource for everything in our range from deep tillage tools to strip-till drills.


