Field Cultivator Knife

Field Cultivator Knife

The AK82-1 Field Cultivator Knife is a nitrogen-application knife built for demanding field conditions, featuring an Adalloy chromium carbide insert for extended wear life. Designed for 3/8" gas tube use, AK82 series knives help place nitrogen 3" to 4" deeper than sweeps and seal well in all soils, supporting consistent nutrient placement. The Adalloy insert is designed to extend service life 3–5 times over hard-faced knives for fewer changeouts.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: AK82-1
• Product Type: Field cultivator knife / nitrogen applicator knife
• Insert Type: Adalloy chromium carbide insert
• Gas Tube Size: 3/8"
• Placement Benefit: Applies nitrogen 3"–4" deeper than sweeps
• Soil Sealing: Designed to seal well in all soils
• Wear Life: Insert extends life 3–5× over hard-faced knives
• Material Thickness / Size: 7/16" x 1-3/4" x 12-1/2"
• Hole Spacing: 1-3/4" to 1-7/8"
• Bolt Size: 7/16"
• Shank Note: For 3/8" punched shanks, use “Reducer Head” plow bolts

Ideal For

• Nitrogen application setups needing deeper placement than sweeps
• Operators wanting longer wear life with chromium carbide insert protection
• Field conditions where good sealing is needed across varying soil types
• Replacement of worn knives on compatible applicators/cultivators using 3/8" gas tube
• Farms looking to reduce downtime with a longer-lasting knife design