Baler Applicators
We work directly with the Baler Manufacturers, to ensure that we have a custom applicator to fit every make and model of baler out there. You tell us what equipment you run, and we will make sure you get the right kit. We know you invest in your equipment; we want to make installation and operation easy. At Harvest Tec, we do it right.
A Solution for every Baler—and every Operator

Electronic
Our Electronic Applicator is the perfect fit for smaller operations or growers seeking an affordable, reliable preservative solution that is compatible with any make and model of baler.
Electronic Applicator Features:
- A control box that is mounted in the cab that consists of an on/off toggle switch and a rheostat dial
- A single pump and gauge
- Pumping rate is increased or decreased by manually turning a dial on a control box in the cab that changes pump speed, therefore varying the output of preservative
The electronic applicator is compatible with all baler models and sizes.
The tank sizes available for this kit are:
- 25 and 55-gallon applicators for round and small square balers
- 100-gallon applicators for large square baler

300 Series
The 300 Series automatic applicator is designed for round and small square baler operators who want to apply hay preservative automatically based on changing conditions in the field.
300 Series Applicator Features:
- A compact processor
- A single bypass pump that supplies constant pressure to a pulsing solenoid
- Moisture Sensors are included (Disc style sensors for Round Balers & Star Wheel Moisture Sensors for Small Square Balers)
- The operator has the option of running the applicator through their own iPad or iPad mini via charging cable for a clear, colorful display
- Stores up to 60 job records by field name with total tons baled, average high moisture, date and time, and amount of preservative used
The 300 series applicator is compatible with all round and small square baler models and sizes.
The tank sizes available for this kit are:
- 25 and 55-gallon applicators for round and small square balers

700 Series
The 700 Series Automatic applicator is the control system for commercial operators that need complete control of their operation and detailed information on each bale being made.
700 Series Applicator Features:
- Displays applicator readings on baler ISOBUS display, a dedicated Virtual Terminal, or a tablet.
- A single bypass pump that supplies constant pressure to a pulsing solenoid(s).
- Moisture Sensors are included (Disc style sensors for Round Balers & Star Wheel Moisture Sensors for Small & Large Square Balers)
- Flow meter with improved reliability to control the rate of application
- Superior sealing Deutch plugs throughout harnesses
- Individual bale details in job records
- Optional Dye-Marker Kit for Large, Small, and Round Balers
- Optional stroke counter for Small Square Balers
- Optional GPS package records bale position to job records
The 700 series applicator is compatible with all baler models and sizes.
The tank sizes available for this kit are:
- 25 and 55-gallon applicators for round and small square balers
- 100 or 110-gallon applicators for large square balers

Baler Applicator FAQs
Harvest Tec custom makes applicators for every make and model of baler out there! Need help finding which kit will fit your baler? Check out our Selection Guide Page!
Electronic:
Manual Control Box with on/off toggle switch & rheostat dial to adjust preservative output
300 Series:
Apple iPad Tablet (Free Hay App is available from Apple App Store)
700 Series:
Small & Round Balers: Apple iPad or Android Tablet (Free Precision Baling App is available from Apple iTunes or Google Play Store)
Large Square Balers: Display on baler monitor via ISOBUS Display, a dedicated Harvest Tec Virtual Terminal, or an Apple iPad or Android Tablet (Free Precision Baling App is available from Apple iTunes or Google Play Store)
Check out our Accessories Page!
All our solutions can be purchased from your local ag dealer!
Need help finding a dealer near you? Check out our Dealer Network Page!
No dealer support in your area but still want to purchase?
We have you covered! We can work with you directly to order replacement parts and small kits. Contact us to find out how!
Call: 800-635-9100
Email: info@harvesttec.com