The heart of Geringhoff headers contains two stripping rolls equipped with four stalk knives each. Durable knives manufactured from special alloy steel maintain a sharp edge for extra long life and can quickly be adjusted individually to ensure optimum performance.

Mounted to run parallel to each other, the knives pull stalks through quickly and evenly for consistent feeding. Hydraulically adjustable stripping plates allow the operator to maximize their return with on the go adjustment for changing stalk characteristics and harvest conditions. The knives run parallel to each other, pulling the stalks through quickly and evenly for consistent feeding. This arrangement slices through 98 percent of the stalk, leaving a quickly deteriorated plant behind.


1. Poly Return Sprocket

  • High density lightweight design
  • Reduces wear on gathering chain
  • Increased diameter for greater exposure to crop
  • Efficient gear ratio to bottom drive sprocket
  • Exceptional picking characteristics

2. Automatic Chain Tensioner

  • Eliminates excessive chain wear
  • Chain tension regulated automatically
  • Automatic compression resists chain damage from foreign objects
  • No screws to adjust

3. Beveled Drive Sprocket

  • One of three components of the gathering chain slip clutch
  • Extends chain life by allowing free movement when obstructed
  • Works in conjunction with the automatic chain tensioner and internal gearbox slip clutch
  • Proven by over 20 years of use

4. Gathering Chains

  • Heaviest gathering chain on the market
  • Unique posi-loc lug design effectively gathers stalk
  • Exceptional functionality and durability
NorthStar Row Unit Top


5. Hardened Spiral Rolls

  • Aggressive design pulls stalks in from any angle

6. Parallel Knife Rolls

  • Minimal tolerance creates an aggressive crimping action that cuts through 98% of the stalk
  • Adjustable and replaceable working edges to minimize repair cost and time

7. Single Component Design

  • The only row unit without a frame
  • All components are secured around the gearbox
  • Excellent access for service

8. Hydraulic Deck Plates

  • Regulated at any time from the operators seat
  • Fewer moving parts
  • Easy to clean and low maintenance
  • No freezing in cold weather
  • In cab digital monitor indicates the shaft speed and stripper plate positioning
  • Design and additional wear edges minimize kernel loss
  • Wide mouth and rounded stripping edges minimize crop damage
  • On the go adjustment to maintain optimum performance while minimizing cob loss further increasing your yields

9. Vine Knife

  • Prevents wrapping of tough material
  • Minimizes excessive wear and damage to other components

10. Additional Working Edges

  • Low roller tolerance strips the ears very close to the stalk. In dry conditions, keeps less trash in the combine and more to the ground
  • Minimizes wear for knife roll edges

11. Aluminum Gearbox

  • “Bullet proof” reliability
  • Design proven by over a decade of use
  • Protection and drive on every row unit
  • Lightweight
  • Internal slip clutch
  • Minimal maintenance (500 hour oil change)
NorthStar Row Unit Bottom

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