Weed Harrow / Flex-weeder

CMN Maskintec A/S – Experts in Mechanical Weed Control

With more than 30 years of experience in mechanical weed control, CMN Maskintec A/S is among the most experienced and specialized manufacturers in Europe. Our Danish engineering and long-term field testing have made CMN one of the leading names in sustainable and non-chemical weed management.


 

CMN Flex-Weeder – Reliable Performance from 2 to 24 Metres

CMN Maskintec’s weeder harrows, known under the name CMN Flex-Weeder, are available in working widths from 2 to 24 metres. Each model is designed for maximum flexibility and effective weed control in both cereals and grassland.


 

The Principle of Mechanical Weed Control

The main rule within mechanical weed control is that weeds are best controlled by covering them. The goal is to till the soil as thoroughly as possible — loosening and aerating — without damaging the growing crop. This method reduces the need for herbicides while improving soil structure and biodiversity.


 

What Makes CMN Flex-Weeder Different

This is where the CMN Flex-Weeder stands out from other weeder harrows on the market. Its unique tine design, flexible frame and precise soil-following system ensure efficient weed coverage, even under variable soil conditions. The result is reliable, environmentally friendly weed control and optimal crop growth. 


CMN Flex-Weeder – Precision and Stability in Mechanical Weed Control


 

Unique Section Design for Maximum Field Stability

The CMN Flex-Weeder is equipped with 1-metre sections that are centre-mounted around their own central axis. This design prevents the harrow sections from bouncing at high speed or on uneven soil types. The narrow one-metre sections ensure the harrow adjusts perfectly to field irregularities across the driving direction, delivering consistent and smooth tillage.


 

Special Tines for Uniform Soil Movement

Each Flex-Weeder is fitted with custom-built straight double-coiled tension spring tines, adjustable from 90° vertically to 45° backwards.
Years of field research have shown that these tines ensure a uniform working depth and move a large amount of soil without damaging the crop.
Tests also prove that CMN tines lift up to 80 % fewer stones than comparable harrows – reducing wear, downtime and maintenance costs.


 

Combine Weed Control and Seeding in One Operation

When a CMN pneumatic seed drill is mounted on the CMN Flex-Weeder, farmers can establish catch crops simultaneously with the final weed-control pass.
The pneumatic seed drill is perfectly suited for small-seeded crops such as clover, grasses and cover crops, ensuring precise distribution and excellent germination.


 

Advanced Seeding Control with the CMN FW280

The CMN pneumatic seed drill FW280 is available with either mechanical infinitely variable transmission or GPS-controlled dosing (G-Can system).
A key advantage is that no tractor GPS system is required – the seeder operates independently, providing simple and precise application control.


 

Flexible Mounting Options for Multiple Implements

The CMN pneumatic seed drill is ideal for mounting not only on CMN harrows but also on ridge drills, rollers, and stubble cultivators.
This flexibility allows efficient use across multiple field operations and machine types – a truly versatile solution for sustainable and mechanical weed control.