Hydraulic disc harrows come in different specifications and sizes, but the numbers you provided (9×9, 12×12, 14×14) typically refer to the number of disc blades on the harrow. Here are some general specifications you might find on hydraulic disc harrows:
- Width: The working width of the harrow, which determines how much ground it can cover in a single pass. Hydraulic disc harrows typically range from around 8 feet up to 25 feet or more.
- Disc blade size: The diameter of the disc blades, which can vary from around 16 inches up to 30 inches or more.
- Number of disc blades: The number of blades on the harrow, which can range from a few up to 100 or more, depending on the width and intended use of the harrow.
- Frame construction: The frame of a hydraulic disc harrow is typically made of heavy-duty steel to withstand the stresses of use in the field.
- Hydraulic system: A hydraulic disc harrow uses a hydraulic system to lift and lower the harrow and adjust the depth of the disc blades. The hydraulic system typically includes one or more cylinders and a control valve.
- Hitch type: The type of hitch used to attach the harrow to a tractor or other vehicle, which can be a 3-point hitch or other type of hitch.
- Other features: Some hydraulic disc harrows may also have features like adjustable disc angle, depth control, or gang angle adjustment.
It’s worth noting that specific specs can vary depending on the manufacturer and model of the hydraulic disc harrow, so you should always consult the manufacturer’s specifications for the particular model you are interested in.