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How to Mow Hay With a Disc Mower | Do You Know

how to mow hay with a disc mower

Mowing hay with a disc mower is like giving your lawn a stylish haircut but on a much larger scale! It’s a method used in farming to cut down tall grass or hay to make nutritious feed for animals. 

The disc mower, equipped with spinning circular blades, glides across the field, swiftly slicing through the grass with precision. 

This process helps farmers gather hay efficiently, preparing it for drying and eventual use as food for cows, horses, and other farm animals.

Importance of Mowing Hay

Mowing hay is super important, and here’s why:

Nutrient Boost

When you mow hay, you’re essentially harvesting a nutritious meal for your animals. The younger, tender grass has more nutrients than animals need to stay healthy.


Mowing makes hay easier for animals to digest. It’s like cutting up their food into bite-sized pieces, making it more comfortable for them to eat and absorb the goodness.

Quality Control

Regular mowing helps control the quality of hay. You can cut it at the right time to ensure it’s not too mature, ensuring your animals get the best nutritional value.

Weed Management 

Mowing helps control weeds. By cutting the grass regularly, you prevent weeds from taking over and competing for nutrients, keeping your hay fields healthy.

Harvest Timing

Mowing at the right time is crucial for a good hay harvest. It ensures that the grass is at its peak nutrition, maximizing the benefit for your animals.

Regrowth Stimulus

Mowing stimulates regrowth. Once you cut the hay, the plants often respond by growing back stronger and healthier, providing a continuous and sustainable source of feed.

Weather Preparedness

Mowing helps in weather-proofing your hay. If you time it right, you can cut the grass before bad weather hits, ensuring that you can harvest good hay even if the weather turns against you.

Mowing hay is like serving a healthy, balanced meal to your animals. It keeps the food quality high, makes it easier for them to eat, and ensures a steady supply of happy and healthy livestock.

How to Mow Hay With A Disk Mower

Mowing hay with a disc mower can be a straightforward process if you follow these easy-to-read steps. Whether you’re a seasoned farmer or a beginner, these guidelines will help you efficiently harvest your hay. Moreover, If you still don’t know how does a disk mower work, know it before mowing hay with a disk mower.

1. Prepare Your Equipment

Before you start mowing, make sure your disc mower is in good condition. Check for any damaged or dull blades, and replace them if necessary. Ensure that the tractor is well-maintained and fueled.

2. Adjust Mower Height

Set the cutting height of the disc mower according to your preferences and the type of hay you’re harvesting. Generally, a higher cut is suitable for legumes, while a lower cut works well for grasses.

3. Check Field Conditions

Examine the field for any obstacles or debris that could damage the mower or disrupt the cutting process. Remove rocks, branches, or any other potential hazards.

4. Plan Your Cutting Pattern

Decide on the cutting pattern to maximize efficiency. It’s often best to mow in a straight line, especially if the field is large and flat. Be mindful of the wind direction to avoid blowing cut hay onto uncut areas.

5. Begin Mowing

Start the tractor and engage the disc mower. Move at a steady pace, allowing the mower to cut the hay cleanly. Avoid excessive speed, as it can result in uneven cutting and missed sections.

6. Monitor PTO Speed

Ensure that the power take-off (PTO) is operating at the recommended speed for your disc mower. This information can be found in your equipment’s manual. Maintaining the correct PTO speed is crucial for optimal cutting performance.

7. Keep an Eye on the Condition of the Hay

Periodically check the cut hay to ensure it’s being uniformly and cleanly cut. If you notice any issues, such as uneven cutting or clogging, address them promptly to avoid disruptions.

8. Make Adjustments as Needed

If you encounter changes in field conditions or encounter obstacles, be prepared to make adjustments. You may need to alter the cutting height or pattern to accommodate variations in the terrain.

9. Clear Clogs Promptly

If the disc mower becomes clogged with hay, stop the tractor and clear the obstruction. Operating the mower with a clog can damage the equipment and compromise cutting efficiency.

10. Complete the Cutting Process

Continue mowing until the entire field is cut. Pay attention to the windrow formation – well-arranged windrows facilitate efficient drying and baling.

By following these easy steps, you can make the hay mowing process smoother and more productive. Regular maintenance of your equipment and attentiveness to field conditions will contribute to successful hay harvesting.

Mowing Techniques 

Adjusting Cutting Height

Start by adjusting the cutting height of your disc mower. This setting determines how close to the ground the mower will cut. Aim for a height that leaves enough stubble for regrowth but collects a sufficient amount of hay.

Inspect and Sharpen Blades

Regularly check the mower blades for sharpness. Dull blades can damage the hay and decrease cutting efficiency. Sharpen or replace blades as needed to ensure a clean cut.

Even Ground Speed

Maintain a consistent ground speed while mowing. This helps ensure an even cut and prevents clogging of the mower. Adjust your tractor’s speed based on the thickness and type of hay you’re cutting.

Overlap Passes

Overlapping your mower passes ensures complete coverage and minimizes the chance of leaving uncut strips. The degree of overlap depends on the width of your mower; typically, a 5-10% overlap is sufficient.

Consider Weather Conditions

Check weather conditions before mowing. Ideally, mow when the hay is dry, as cutting wet hay can lead to mold and nutrient loss. Additionally, dry hay is easier to handle and store.

Mow in the Right Direction

Mow in the direction that allows cut hay to lay flat for easier drying. Consider the prevailing wind direction to help the hay dry more efficiently.

Avoid Stones and Obstacles

Before mowing, clear the field of any stones, debris, or obstacles that could damage the mower or hinder its performance. This simple step prevents downtime and potential equipment damage.

Regular Maintenance

Keep your disc mower well-maintained. Lubricate moving parts, check belts and inspect the entire system for any signs of wear or damage. Regular maintenance ensures a longer lifespan for your equipment.

Adjusting Swath Width

Customize the swath width based on your hay-handling equipment. A properly adjusted swath width makes it easier for balers and rakes to collect and process the hay efficiently.

Post-Mowing Cleanup

After mowing, inspect the field for any uncut or poorly cut areas. Use a rake if necessary to even out the hay for better drying and harvesting.


In conclusion, mowing hay with a disc mower is a straightforward yet essential task for farmers looking to harvest quality forage. 

By following a few simple steps, such as adjusting cutting height, maintaining proper speed, and regularly checking equipment, you can ensure an efficient and effective mowing process. 

Remember to prioritize safety, keep the mower well-maintained, and adapt your technique based on field conditions. 

With these tips in mind, you’ll be on your way to a successful hay harvest, promoting healthier crops for your livestock and contributing to a thriving farm operation. 


What is a disc mower?

A disc mower is a farm implement used to cut hay or grass. It consists of rotating blades mounted on discs that efficiently cut through the crop.

How do I prepare my disc mower for use?

Check the blade sharpness and alignment, ensure proper lubrication, and adjust the cutting height according to the desired length of the hay.

What’s the best time to mow hay with a disc mower?

Mow when the hay is dry, ideally in the morning after dew has evaporated. This helps prevent mold formation during storage.

How should I operate a disc mower for safety?

Always follow the manufacturer’s guidelines. Keep bystanders at a safe distance, watch for rocks or debris in the field, and disengage the mower when turning or crossing roads.

What’s the best way to store a disc mower after use?

Clean it thoroughly to remove grass and debris, lubricate moving parts, and store it in a dry place to prevent rusting and damage.


About M. Faisal Riaz

With a robust background spanning 6 years, Faisal is a seasoned professional in digital marketing, advertising, content creation, and SEO strategy. Faisal brings a wealth of expertise to cultivate and amplify the Farmry brand in the digital landscape. Passionate about innovative marketing solutions, Faisal is dedicated to driving Farmry's success in the ever-evolving world of agriculture. 🚜✨ #MeetTheTeam #FarmryLeadership #MarketingMaestro

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