Heavy-Duty Primary Tillage: J42, J42B
Overview:
AMCO offers Wheel Offset Harrows with 10½” blade spacing in four options. Primary tillage models are available in both 50″ main frames or 86″ main frames (designated with a “B”).
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Features
This heavy-duty primary tillage tool cuts and sizes residue, eliminates clumps, and loosens packed soil, helping you prepare your ideal seedbed. It’s ideal for a wide range of applications.
- Disc gangs feature maintenance-free bearings with three-year warranty; bearings eliminate possibility of contamination and need for re-lubrication
- Features 1½” square, high-carbon, cold-rolled steel axles
- Standard unit comes with 24″ diameter x ¼″ thick plain blades with diminishing leveling blades
- Optional blade diameters and thicknesses are available
- Equipped with ³⁄₁₆” x 6½” x 8” high-carbon steel, replaceable, adjustable scraper blades mounted on bars of 2½” x 2½” square tubing; the scrapers are attached to the 2½” x ½” thick arms with heavy-duty U-bolts
- Includes heavy-duty bearing risers or Shock Absorber Bearing Risers
- Dual wheels improve flotation
- Positive screw-type depth control maintains set cutting depth
- Wear guards protect bearing housings and zerk guards protect grease fittings
- Includes an adjustable 88½” tongue with base hitch and tongue jack
- Heavy-duty 3,000 PSI hydraulic cylinders adjust cutting depth and raise the disc for transport
- Features outriggers of 18’8″ and 20’6″
- Backup blades provide added support for working blades
- Weights of 164 to 208 pounds per blade
- Safety features include safety chains, slow-moving placard, and light kits
Specifications
Model J42
50″ Main Frame
| Model | J42-2024 | J42-2424 | J42-2824 |
| Cutting Width* | 8'8″ | 10'4″ | 12'0″ |
| No. of Disc Blades | 20 | 24 | 28 |
| No. of Bearings | 6 | 8 | 10 |
| Approx. Engine HP Required | 101-128 | 122-162 | 135-176 |
| Approx. Weight lbs.** | 3,937 | 4,614 | 5,037 |
86″ Main Frame
| Model | J42B-2824 | J42B-3224 | J42B-3624 | J42B-4024 | J42B-4424** | J42B-4824** |
| Cutting Width* | 12'0″ | 13'8″ | 15'4″ | 17'0″ | 18'8″ | 20'6″ |
| No. of Disc Blades | 28 | 32 | 36 | 40 | 44 | 48 |
| No. of Bearings | 10 | 12 | 12 | 12 | 16 | 16 |
| Approx. Engine HP Required | 149-189 | 169-203 | 189-236 | 216-257 | 236-277 | 257-297 |
| Approx. Weight lbs.** | 6,063 | 6,558 | 6,910 | 7,803 | 8,389 | 8,741 |
*To calculate weight/blade, divide the approximate weight of the model by the number of disc blades.
**Equipped with auxiliary frames, clamps, and 8-hole hubs with 15″ x 10″ 8-hole wheels.
Specifications subject to change without notice.