Discover the perfect match for your needs. The CMN Kvik-Killer is designed for mechanical weed control and grassland renovation, offering multiple models and sizes to suit your specific requirements.
For the 2025 season, the Kvik-Killer has been upgraded with innovative features to enhance performance. Key updates include:
Stone Release Mechanism integrated at the base of the rotor shield
25% Stronger Rotor Clutch for improved durability
Redesigned Round Rotor Shield for extended lifespan
Double Plate and Stainless-Steel Inner Shield in the rotor
Increased Distance between rotor teeth and shield for better functionality
Protective Plate under the chain guard for added safety
Reinforced Bearings and double plates in the 3-point linkage system
Bushings in the chain tensioner arms for smooth operation
20% Stronger Rear Profile in the harrow section

Kvik-Killer with Stone Release in the Rotor Shield
Eco-Friendly and Biodiversity-Focused
The CMN Kvik-Killer is engineered with environmental sustainability in mind. Its slow-moving rotor protects biodiversity by sparing earthworms and other beneficial organisms, while effectively removing tough weeds like couch grass, thistles, and mugwort.
Automatic clutches on all rotors protect against overload
Stone protection on each rotor tooth prevents damage
Free replacement policy: Broken tooth? We’ll replace it at no cost
The CMN Kvik-Killer is available in working widths of 2- 2,8-3-4, and 6 meters.
Ideal for larger operations with better clearance between harrow tines.

The new CMN Kvik-Killer 2025 version features a stronger rotor and improved design for effective mechanical weed control. Developed in Denmark – durable, precise, and sustainable.
Flexible and easy to maneuver.

CMN Kvik-Killer in action – effective mechanical control of couch grass, thistles, docks, and other root weeds.
Soil loosening: The stubble harrow’s powerful tines with 48 cm-wide wing shares loosen the soil.
Gentle lifting: The rotor gently lifts organic material to the surface for drying.
Adjustable working depth: 2–15 cm (depending on soil type) ensures optimal root control.
Reduce yield loss: Prevent losses of up to 50% caused by couch grass
Minimize nitrogen leaching: Promote soil health by retaining nitrogen and enhancing carbon content
Up to 80% weed reduction after the first treatment
Perform a full pass to control weeds effectively.
Repeat the process to ensure weeds don’t survive the winter.
The CMN Kvik-Killer excels in breaking down old grass swards during the renovation of grasslands and seed fields, improving soil conditions and preparing the land for new crops.
The CMN Kvik-Killer is a sustainable and efficient solution for tackling root weeds and optimizing field productivity. Contact us today for more information or request.
Couch grass is a greedy plant that competes with crops for light, water, and nutrients. It can reduce yields by 30–50%. The table below shows yield losses in spring barley at various levels of couch grass infestation. Source: National Centre for Crop Production.
Amount of couch grass per m² in June – Loss of yield
10–100 → 5%
100–200 → 10%
200–400 → 25%
400–800 → 50%
The combination of the slow-moving pickup system and the soil’s high density makes the CMN Kvik-Killer a highly efficient and gentle solution. The machine ensures that soil, stones, and beneficial organisms like earthworms pass easily beneath the pickup, while organic material such as weed roots is lifted and placed on the soil surface to dry or be collected.
To achieve the best results, weed control should begin immediately after harvest:
Perform a full cut to bring couch grass and other root weeds to the surface. This treatment eliminates up to 80% of root weeds.
Simultaneously sowing cover crops improves soil structure and reduces nitrogen leaching. Rapid decomposition of chopped straw increases soil carbon content while reducing working hours per hectare.
Before plowing, an additional treatment with the CMN Kvik-Killer is recommended to:
Incorporate cover crops and organic material into the soil
Expose any remaining weed roots that may have survived the winter
These exposed weed roots can be buried deep at the bottom of the plow furrow using a properly adjusted front plow, preventing them from sprouting again. Proper sorting and adjustments are critical for successful root weed control.
For even greater efficiency in root weed control, the CMN Kvik-Killer can be equipped with a seeder. This combination allows you to manage weeds and establish a new crop in a single operation.
Surface-level control: Weed seedlings and small roots in the topsoil layer (5–7 cm) are effectively removed. Any remaining roots are exposed during seeding and dry out.
Weather-independent results: With the CMN Kvik-Killer, you don’t need long dry periods to achieve effective results.
With the CMN Kvik-Killer, you can:
Reduce the need for chemical weed control
Promote a healthier soil structure with greater biodiversity
Achieve efficient root weed control, ensuring better yields and long-term field productivity
For more information about the CMN Kvik-Killer and our mechanical weed control solutions, contact us today.