Applicators for Large Square Balers

largebalerThe 600 Series Automatic Applicator system is now available for all Krone large square balers and can be controlled in the cab through an iPad via Bluetooth. The 600 Automatic Applicator still retains all its functions such as sensing moisture and tonnage on the go, and adjusts the preservative application rate based on the condition of the hay. This precision gives the operator the exact amount of preservative required to keep the crop in great condition without wasting product. The display in the cab gives the operator complete control and provides information on:

  • Moisture content
  • Speed of baling (tonnage)
  • Volume of preservative used per bale
  • Total tons baled

The 600 Series Automatic Applicator is compatible with the new Bale Indentification System, or Tagger, that attaches a tag carrying all the information on that specific bale to the bale itself.

Electronic control systems are also available for large square balers. Equipped with a high-capacity 110-gallon tank mounted on the rear of the baler, the operator can go almost non-stop.

Moisture Sensors for Large Square Balers

Automatic systems for large square balers are equipped with two star wheel moisture sensors mounted on the top of the bale chute, sensing moisture across the width of the bale via conductivity. The sensors can accurately read crop moisture from 8% to 70%, covering a wide range of moisture levels. As the star wheels turn, they also calculate tonnage, helping the system apply preservative even more accurately


Star wheel sensors for large square balers

Product Specs

All applicators come as complete kits designed to fit your specific baler, and consist of:

Comparison of Applicator Controls

 Electronic Applicator600 Series Automatic
Single Pump SystemX 
3-Pump Manifold X
Control Box with Adjustable DialX 
iPad Display X
IOSBUS Display X
Built-in Flowmeter X
Automatic Application X
Moisture Sensing Capability X
Job Records by Field X
Job Records by Individual Bales X
Calculates Baling Rate X
Export Job Records to iPad X
Hay Indicator CompatibleXX
Dye Sprayer Kit Compatible X
Tagger Compatible X

Applicators for Round Balers

roundbalersHay preservative can be used to bale large round bales between 16% and 30% moisture. You have the option of a 25-gallon or, on certain models, a 55-gallon application system. The system mounts to the tongue of the baler and holds enough preservative to treat 30 to 60 tons of hay. Depending on your need, choose the new 300 series automatic system, a 600 series commercial automatic system, an electronic system, or an economical manual control system (available in 25-gallon only).


Moisture Sensors for Round Balers

Automatic systems for round balers are equipped with two moisture sensing discs, one mounted on each of the baler side walls, sensing moisture across the width of the bale via conductivity. The sensors can accurately read crop moisture from 8% to 60%, covering a wide range of moisture levels.

Product Specs

Comparison of Applicator Controls

 Electronic Applicator300 Series Automatic600 Series Automatic
Single Pump SystemXX 
3-Pump Manifold  X
Control Box with Adjustable DialX  
iPad Display XX
IOSBUS Display  X
Built-in Flowmeter XX
Automatic Application XX
Moisture Sensing Capability XX
Job Records by Field XX
Job Records by Individual Bales  X
Calculates Baling Rate: Round Baler  X
Calculates Baling Rate: Small Square Baler, Large Square Baler XX
Export Job Records to iPad  X
Hay Indicator CompatibleXXX
Stroke Counter on Small Square Baler  X
Dye Sprayer Kit Compatible: Small Square Baler, Large Square Baler  X
Tagger Compatible: Large Square Baler  X

600 Automatic Controls System

Large Square Balers

The 600 Automatic Applicator control system is the premier applicator for large square balers. The 600 system accurately senses moisture on-the-go and adjusts the application of preservative every three seconds to match the condition of the hay. This precision gives the operator the exact amount of product required to keep the crop in great condition, without wasting product. The 600 automatic system for large square balers is controlled through an iPad or iPad Mini via Bluetooth, giving complete control to the operator more efficiently as ever with a colorful, wireless display in the cab. The display shows moisture content, speed of baling, and how much preservative is being applied. This control adjusts application rate every three seconds to attain the target rate.

This kit can be controlled one of two ways:

  • Wireless via Bluetooth on an iPad or iPad Mini
  • If the operator has an ISOBUS tractor with a VT display and is not using it to control the baler, the applicator functions can be viewed through the tractor display.

A simple push on the Main Menu key pulls up a selection of other screens including the adjustable settings and a Job Record screen. The system stores up to 300 job records by field, including date and time of baling, number of tons baled, product used and the average moisture and high moisture. The system will also store up to 33,000 individual bale records within those job records, and all of the job records can be exported to the iPad, or downloaded and printed via a USB port on the processor for easy and efficient access to crucial bale information.

The new Dye Sprayer Marking Kit that is found on large square balers can now be used on small square balers, allowing the operator to visibly mark the wet bales. GPS systems and bale scale kits can also be used with the 600 Series Automatic Applicator, helping the baling operation become more advanced and efficient than ever before.

Round Balers

The 600 Automatic Applicator is the choice of applicator for the round baler operator that makes hay commercially or is looking for the added performance and capabilities of the 600 system.  

The 600 system on round balers reads moisture with two discs in the bale chamber up to 70% moisture, and also has a sensor on the bale door to record individual bale records. The system has the ability to store and download job and individual bale records via USB and export via iPad.


300 Series Automatic Control System

Round Balers 

HTThe 300 series automatic control system is a more compact and efficient applicator that accurately senses moisture on the go and adjusts the application of preservative to match the condition of the hay. This precision give the operator the exact amount of product required to keep their crop in great condition, without wasting product. The 300 Series applicator is controlled with an iPad* through a Bluetooth receiver, eliminating harnesses in the cab.

New improvements to the 300 Series Automatic Applicator include:

  • Single constant-pressure pump with pulsing solenoid that reacts quickly to changes in application rates
  • Improved flowmeter that works on a range of products
  • Smaller and more compact system that is easier to install and maintain

The applicator takes moisture and baling rate information from the two star wheel sensors on small square balers, and two moisture discs in the bale chamber on round balers, and the system will automatically apply the correct amount of product. The moisture, tonnage, and rates are all displayed on the screen, along with the volume used. A simple push of any Main Menu key pulls up a selection of other screens including adjustable settings and a Job Records screen. The system stores 63 jobs by date and time, number of tons baled, product used, and high and average moisture.

*iPad Mini or iPad 3rd Generation (2012) or newer, with iOS 8 or higher operating system required for iPad option

Electronic Control Systems

electric_controlsThe electronic cab control is a solid state electronic pump control used for large round and large square balers. The control is mounted in the cab or on the fender. Application rate is quickly and easily adjusted from the operator s seat. Once set, the electronic control will hold the application rate constant. This unit is included with all 25-and 55-gallon applicators with electronic control. It is also included with 100-gallon applicators with electronic control for large square balers.

Manual Control Systems

The manual pressure regulator provides full-rate adjustment at the applicator, which is controlled on the baler. This economical control is available for 25-gallon applicators only. *There is no regulation control in the cab of the tractor with this unit. 

Your hay is important. Make sure your preservative does what it says it will.

Find out more >>


Crop Sensing Eye Kit

Part # 474A The hay indicator senses hay on the balers pick-up automatically, starting and stopping the application.
Part #
474A Hay Indicator Kit for use with 464 Automatic
Control, 2005 & newer Automatic & Electronic Controls


Flow Meter

Part# 453 Digital Electronic Flow Meter
for use with any Harvest Tec preservative applicator
delivering between 40 and 500 pounds per hour. The flow meter reads the application rate in pounds per hour and total pounds used.

Moisture Tester

Part# FX2000

Delmhorst FX-2000, Digital Hay Moisture Meter measures moisture levels in the windrow and standard bales.

Microcontroller circuit
Can be used for on-the-go moisture monitoring or as a portable meter
In continuous mode:
Takes two readings every second
Displays the average and highest of eight accumulated readings
Readings updated every 4 seconds
Back lighted display
In portable mode
Averages up to 100 accumulated readings
Displays average and highest of accumulated readings
Measures moisture content over the range of 6%-40%
Ideal for high volume producers who need the time-saving convenience of on-the-go


Transfer Pumps

Part# 9214, 9212, 9213

To transfer Baler’s Choice Hay Preservative safely and easily from your storage container to your applicator tank, use any of the following transfer pumps:

Model 9214: For a rapid transfer rate of 14 gallons per minute, this 12-volt unit can get the job done quickly.

Model 9212: This standard output, 12-volt model, will transfer preservative at a rate of 4 gallons per minute.

Model 9213: This inexpensive hand transfer pump is ideal for transferring small amounts of preservative easily.


Floor-Mounted Applicator Pause Switch

Part# 475
The floor-mounted applicator pause switch is an inexpensive addition to your application system the enables the operator to easily stop and start the applicator. For use with any automatic application system, 2005 and newer.

Dye Sprayer Marking System

Part # 030-0840
The Dye Sprayer Marking System is a simple way to visibly mark the wet areas on your large square bales. Compatible with the Model 696 Automatic Applicator or the Model 600 Moisture Monitor for any large square baler, the 3-gallon system is mounted near the bale chamber and when the adjustable high moisture alarm sounds, the system will spray a red-colored, food-grade dye on the exact location on the bale for a quick and easy reference.


GPS Interface Kit

Part # 030-0880
By incorporating the GPS into the Model 500 Moisture Monitor, 696 Automatic Applicator, or Bale ID Tagger, the producer has the ability to create yield maps for their crops, allowing them to gain the knowledge needed to maximize productivity. The kit consists of a removable data storage card and GPS interface harness that is compatitble with the Trimble 162 AgGPS, which is purchased separately from a Trimble dealer.







600 and 300 Series Applicator Kits DO NOT include display

600 and 300 Series Automatic Applicators now include a Bluetooth receiver for iPad operation..

*Contact Your Local Krone Dealer For Pricing*

Large Square Balers - 110 Gallon Application Systems

Baler Model600 Series Automatic 
Electronic Control
Upgrade to Automatic
BP 886964498B49144986654498B
BP 88 w/Multi-Cut696V4495B491V4495665V4495B
BP 1286964498B49144986654498B
BP 128 w/Multi-Cut696V4495B491V4495665V4495B
BP HS 8906964515B49145156654515B
BP HS 890 w/X-Cut696V4540B491V4540665V4540B
BP 12706964515B49145156654515B
BP 1270 w/X-Cut6964514B49145146654514B
BP 1270 HS6964515B49145156654515B
BP 1270 X-Cut HS696V4541B491V4541665V4541B
BP 1270 Multi-Bale6964515B49145156654515B
BP 1270 HS Multi-Bale6964515B49145156654515B
BP 1270 X-Cut Multi-Bale6964514B49145146654514B
BP 1270 X-Cut Multi-Bale HS696V4541B491V4541665V4541B
BP 12906964515B49145156654515B
BP 1290 X-Cut HS696V4541B491V4541665V4541B
BP 1290 X-Cut6964514B49145146654514B
BP 1290 HS6964515B49145156654515B
BP 1290 HDP696K4515B491K4515665K4515N
BP 1290 HDP HS696K4515B491K4515665K4515B
BP 1290 HDP w/X-Cut696K4541B491K4541665K4541B
BP 12130696K4515B491K4515665K4515B
BP 12130 w/X-Cut696K4514B491K4514665K4514B
BP 4x4696K4539B491K4539665K4539B
BP 4x4 HS696K4539B491K4539665K4539B
BP 4x4 X-Cut HS696K4541B491K4541665K4541B

Round Balers - 25 Gallon Application Systems

Baler Model300 Series Automatic
Electronic Control
Upgrade to Automatic

Round Back Fixed Chamber 1250

Round Pack Fixed Chamber
1250 Multi-Cut
Round Pack Fixed Chamber


Round Pack Fixed Chamber
1550 Multi-Cut
KR 125N/A44144844394484N/A
Vario Pack 15103464484C441448443944843U64484C
Vario Pack 18103464484C441448443944843U64484C


Baler Style600 Series Moisture OnlyUpgrade to Auto Applicator
Round Baler030-600RBContact Harvest Tec
Large Square030-0600Contact Harvest Tec


DescriptionPart Number
400 Series iPad Conversion Kit (Bluetooth receiver)030-4672A
600 Series iPad Conversion Kit (Bluetooth receiver)030-6672A
iPad Mini Mounting Kit030-2012MK
iPad Mini & Mounting Kit Combo (iPad Mini, mount, charger)030-2670DK
Dye Marking System030-0840
Baler Mounted Moisture Tester008-FX2000
Hay Indicators (Crop-Eyes)030-474A
12V Electronic Transfer Pump (4 Gal/Min)008-9212
12V Electronic Transfer Pump (15 Gal/Min)008-9214
110V Electronic Transfer Pump (4 Gal/Min)008-9215

Request Information

First Name (required)

Last Name (required)


Address (required)

City (required)

State (required)

Postal (required)

Phone (required)

Your Email (required)