smstonypoint
Super Member
- Joined
- Oct 13, 2009
- Messages
- 5,351
- Location
- SC (Upstate) & NC (Piedmont)
- Tractor
- NH TN 55, Kubota B2320 & RTV 900, Bad Boy Outlaw ZTR
First, my rationale for this post. It's raining so I can't work outside and I fear that the Missus will assign me household chores if I do not appear busy at the keyboard.
The rule-of-thumb that each foot of rotary cutter width requires 5 tractor HP is often cited here. I thought I would test the rule-of-thumb against a manufacturer's recommended minimum HP requirements. I selected Woods rotary cutters for the test for no particular reason, and used the information from the Woods Web site to construct the attached chart. *
Woods Equipment Company
The cutters with black symbols are 3PH-mounted models and those with red symbols are either pull or semi-mounted models. When a model was available as either a 3PH mounted or pull type, I used the pull model data.
How does the rule-of-thumb perform? You be the judge, but I would recommend the rule-of-thumb only as a very rough first approximation.
Steve
* I'm not bored enough to expand the chart to include other manufacturers.
The rule-of-thumb that each foot of rotary cutter width requires 5 tractor HP is often cited here. I thought I would test the rule-of-thumb against a manufacturer's recommended minimum HP requirements. I selected Woods rotary cutters for the test for no particular reason, and used the information from the Woods Web site to construct the attached chart. *
Woods Equipment Company
The cutters with black symbols are 3PH-mounted models and those with red symbols are either pull or semi-mounted models. When a model was available as either a 3PH mounted or pull type, I used the pull model data.
How does the rule-of-thumb perform? You be the judge, but I would recommend the rule-of-thumb only as a very rough first approximation.
Steve
* I'm not bored enough to expand the chart to include other manufacturers.
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