Description

 

• 6mm thick notched discs
• Single 32mm square axles per row (Total of two per unit)
• Two greasable bearing hubs per row (Total of four per unit)
• Robust heavy duty frame
• Adjustable offsets
• Disc scraper blades to reduce clogging
• Backed by Hayes field knowledge, technical support and stock of consumables and spare parts

 * Please note – photo shown is of the 1,900mm wide discs

22-Inch Disc Harrow Tractor Horsepower Guide

Choosing the right disc harrow for your tractor ensures better performance, improved fuel efficiency, reduced wheel slip and longer equipment life. The recommendations below are based on typical Australian operating conditions and assume a correctly ballasted tractor with good traction.

Note: Actual horsepower requirements will vary depending on soil type, moisture levels, working depth, terrain, tyre choice and ballast. These recommendations are intended as a practical guide only.

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🟩 Recommended Tractor Horsepower

Disc Harrow Model	Disc Configuration	Light / Sandy Soil	Average Conditions	Heavy Clay / Deeper Cutting	Maximum Tractor HP
1200 mm	12 × 22″ discs	30–40 hp	40–55 hp	55–70 hp	120 hp
1650 mm	16 × 22″ discs	45–55 hp	55–75 hp	75–90 hp	120 hp
2100 mm	20 × 22″ discs	60–70 hp	70–90 hp	90–120 hp	120 hp

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🟩 Implement Weight & Recommended Three-Point Linkage Lift Capacity

Disc Harrow Model	Implement Weight	Recommended Minimum 3-Point Lift Capacity
1200 mm	440 kg	650 kg
1650 mm	600 kg	900 kg
2100 mm	710 kg	1,100 kg

Why is a higher lift capacity recommended?

Because a disc harrow is carried behind the tractor, the implement’s load centre sits well behind the three-point linkage lift arms. This creates additional leverage on the tractor, meaning the required lifting capacity is greater than the implement’s weight alone. Choosing a tractor with additional lift capacity improves lifting performance, stability and transport safety.

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🟩 Quick Reference

Disc Harrow Size	Recommended Tractor Range
1200 mm	40–70 hp
1650 mm	55–90 hp
2100 mm	70–120 hp

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🟩 Choosing the Right Disc Harrow for Your Tractor

• Match the disc harrow to your tractor’s engine horsepower for the conditions you expect to work in.
• Ensure your tractor has adequate three-point linkage lift capacity for the chosen implement.
• Heavier soil, steeper terrain and deeper cultivation will require more horsepower than lighter working conditions.
• If operating close to your tractor’s maximum lift capacity, front ballast or a front-end loader can improve stability and provide additional counterbalance during lifting and transport.

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Hayes Products – Tough Gear Built for Hard Work

Specifications

 

Horsepower	60-120hp
Working Width	2,100mm
Qty discs	20
Disc diameter	22 inch
Disc thickness	6mm
Gangs/axles	4
Bearing hubs	8
Axle thickness	32mm square
Disc spacing	230mm
Main frame	60 X 80 X 5mm
Gang supports	60 X 80 X 4mm
Offset angles	TBA
Hitch pins	CAT 2
Overall width	2,400mm
Weight	710kg

 

 

• The product is shipped in a steel frame to enable cost effective freight therefore some assembly is required
• 12 months manufacturing warranty