Machine type
Pull-type disc mower
Case IH mower ยท 2010s to present
Case IH RD163 Rotary Disc Mower
Case IH RD163 Rotary Disc Mower is a pull-type disc mower with roughly a 16 ft cutting width. It is built to cut hay and forage cleanly, but it does not include a crop-conditioning system.
Cutting width
About 16 ft 4 in
Power required
Typically 110 hp or more
Production years
2010s to present
Case IH RD163 Rotary Disc Mower specifications
| Machine type | Pull-type disc mower |
|---|---|
| Cutting width | About 16 ft 4 in |
| Power required | Typically 110 hp or more |
| Production years | 2010s to present |
| Cutting system | Disc cutterbar with rotating knife discs |
| Number of discs | Typically 12 |
| Cutting height range | Typically about 1.5 to 3 in, depending on setup |
| PTO speed | 1,000 rpm |
| Approx. weight | Roughly 4,000 to 5,000 lb |
What the RD163 Rotary Disc Mower is used for
The RD163 cuts hay crops into a swath without crimping or tining the stems. It is useful where conditioning is not needed or where a separate conditioning or crop-management approach is preferred. Maintain sufficient overlap on uneven ground to avoid uncut strips.
Why the Case IH RD163 Rotary Disc Mower stands out
Its simpler, conditioner-free crop path reduces the number of conditioning components to maintain. The broad rotary disc cutterbar provides fast, continuous cutting in hay crops. Skid shoes and a protected driveline help support operation over varying field surfaces.
Buying a used Case IH RD163 Rotary Disc Mower
Inspect discs, knives, knife bolts, cutterbar housings, and skid shoes for impact damage or heavy wear. Check cutterbar and gearbox oil, looking for leaks, metal contamination, or bearing noise. Test the PTO shaft, slip clutch, breakaway function, transport latch, tires, and hitch pivot.
Case IH RD163 Rotary Disc Mower frequently asked questions
Does the RD163 condition hay?
No. It is a rotary disc mower, so it cuts the crop but does not use rolls or tines to condition it.
What PTO speed is required?
The machine is generally intended for a 1,000 rpm PTO tractor.
What causes streaking after mowing?
Dull or missing knives, incorrect cutterbar setup, excessive travel speed, or insufficient overlap can leave uncut crop.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used mowers and conditioners vary by condition, use, and region. Page updated Aug 4, 2026.