Specially Designed Solutions
to meet your unique requirements
Customised solutions for your unique needs
At Zero-Max A/S, we develop customised drive solutions that are designed to deliver maximum reliability and performance - even under demanding conditions. Our custom-designed adjustable speed drives are the result of close collaboration with industry leaders and have been tested over decades of operation in agricultural and automation applications.
A good example is our specially developed Drives for seed drills and feeders (Air Carts). This solution has been in continuous production for more than 15 years and has already Over 15,000 units in operation - with proven reliability and minimal downtime.
✅ Customised for your applications
✅ Tried and tested technology
✅ High performance and long lifespan
✅ Seamless integration into existing systems
Download our catalogue and contact us for a solution that matches your exact machine!
Seeder / Feeder Drives
The description and specifications for this variable rate Seeder Drive are:
- 0‐300 rpm input speed
- Up to a 1:1 ratio of input to output speed
- 200 in‐lb torque rating, higher torque capacity units can be built.

Customized Solutions
BENEFITS
Seeder / Feeder Drives
- Aluminum housing (can be left unpainted, or can be painted in the field to match the colors on Air Cart). The typical set‐up for these Seeder Drive units consists of:
- A step‐up ratio chain drive from the ground wheels to the input shaft of the Seeder Drive unit
- An electric clutch on the end of the input shaft to disconnect rotation to the input shaft when towing between fields or for shutting off the Drive at the end of a row
- Two or Three sprockets on the output shaft to offer different ratios beyond the output of the Seeder Drive unit. The different ratios give versatility for different types of seeds or fertilizers that may be used.
- A mechanical or electric actuator for controlling the ratio on the Seeder Drive control., Mechanical screw control design also offered as an option. Many of our OEM customers add an electric Linear Actuator to the control shaft on the Seeder Drive to provide a variable rate on‐the‐go. Many applications use a push button in the cab of the tractor to adjust the rate on the Seeder Drive, and others use GPS feedback to control the rate adjustments.
- Mounting orientation is important for oil fill and oil plug location.
Vertical mounting: For a vertical mount, the centerline between the input and output shafts is perpendicular to the ground. Horizontal mounting: For a horizontal mount, the centerline between the input and output shafts is parallel to the ground. Mounting orientation is important for oil fill and oil plug location. - Output shaft lengths can be customized based on number of sprockets to be stacked.
- Roll pin vs. keyway on the output shaft.
Most applications using sprockets on the output shaft prefer the use of a keyed output shaft and key.
We do have some designs that instead have a crosss-drilled hole in the output shaft to mount a hollow tube over and connect it to the shaft with a roll pin. Commonly in these applications the output shaft is being driected straight across the Air Cart to drive an auger - Output shaft rotation (clockwise or counter-clockwise) of your choosing.
- Request for quote, we will help determine which combination of features from the various options is the best fit.
