AP Flex-Flo™ Feed Delivery Systems

Automated Production Systems




Nothing beats AP's Flex-Flo™ feed delivery system in flexibility and adaptability.  Using PVC tubing as the carrier of feed not only provides flexibility in facility design, but reduces dust, provides protection against insect and rodent contamination, and reduces stressful operation noise.  AP's Flex-Flo™ delivery system adapts to a variety of configurations and capacities to meet today's demanding production requirements.


Durable PVC Tubing
AP’s polyvinyl chloride (PVC) tubing is extruded in our own facility, to exacting standards and under our own quality control. Blended PVC allows us to formulate the optimum compound for UV stabilization,
strength, and wear resistance.

PVC Tubing


Quality Auger
AP augers are coiled in-house from high tensile steel for consistent quality and strength. AP uses wire which is flattened prior to hardening which provides better resistance to distortion and an all around stronger product.

AP Auger


Around the Bend
For moving feed up in the air and around corners, AP Flex-Flo™ elbows are specially formed with increased wall thickness on the inside of the elbow for added strength and wear resistance.

Thicker Inner Wall

  Flex-Flo™ Models
Both tubing and augers are available in a variety of models to fit your specific requirements. Whether its ground feed, mash, high moisture corn, shelled corn or pellets, AP has the combinations to handle it.
  AP Flex-Flo Models    
Quality Unloaders
Unloaders are available for Model 220, 300, 350, HR and 500 Flex-Flo™ or 4” and 6” rigid auger systems. Most unloaders are available in AP unloaderssingle or double outlet models, as well as “through” models for use in tandem tank systems.
  Unloader FeaturesAP Unloader Features
Unloaders feature heavy duty ball
bearing anchor & bearing assemblies
to increase service life and reduce maintenance. All unloaders have a slide gate above the auger to shut feed
off and a side inspection door.
  Plastic BootsAP Plastic Boots
AP offers straight drop, 30°, and double boot models. All are chemically blended with specially formulated
ultraviolet inhibitors and impact modifiers to enhance durability. AP’s clear boot model provides an easy visual of bin feed levels.


                                               AP Single & Twin Out       AP Double Through Unloader     AP Single Unloader & 30 degree Boot

                                             Single & Twin Out            Double Through Unloader   Single Unloader & 30° Boot


SmartIR Sensor

        SmartIR utilizes infrared technology to detect the level of feed and control all functions of the feed delivery system.

SmartIR Features

  • Digital Display with Push Button Operation
  • On Delay Timer to delay the start of the auger and eliminate short cycling.
  • Maximum Run Timer shuts down a running feed delivery system at a predetermined time preventing costly feed spills and excessive wear caused by empty feed bins or feed bridging.
  • Alarm contact can be wired to an Agri-Alert alarm system or on site alarm to provide immediate notice that the Maximum Run Time has been exceeded.
  • SmartIR comes with a 20 Amp., 230 Volt internal relay com patible on all flexible auger feed delivery systems.



The SMARTflex control unit uses a proximity sensor and timers to efficiently operate a Flex-Flo delivery system. The SMARTflex comes with a digital display and push button programming for ease of operation.AP SMARTflex



              -Maximum Run Timer included.

              -An On Delay Timer prevents short cycling to the Flex-Flo motor.

              -Cumulative Run Timer monitors/tracks feed intake.

              -Alarm capable warning of system plugging or maximum run time exceeded.




SMARTflex Control Unit

AP SMARTflex Control Unit






Heavy Duty Metal Boot

Multiple outlet requirements canbe easily handled by our 22” (559mm) all metal boot. This boot, which can be fitted to any AP feed bin,will allow installation of up to four feed lines in several directions at once.

AP Heavy Duty Metal Boot





Maximum Run Timer

AP’s Maximum Run Timer prevents costly feed spills and auger wear by shutting down the feed line if the system operates longer than the programmed run time. The Maximum Run Timer can be easily adapted to any flexible auger system.

AP Maximum Run Timer





Universal Sensor
AP’s Universal Sensor adapts to 24-240 volts and can operate either normally open or normally closed. Insensitive to temperature or humidity, this sensor features easy push button, 1 sec. to 3 hr. on delay programming to prevent short cycling of the feed system.

AP Universal Sensor


Control Units
AP offers both drop tube and hopper level switches as automatic shut-off options. Both units are located at the last feeder in the line. Drop tube switches and hopper level controls are also available with an optional proximity style switch with time delay.

AP Control Units


Precise Control
AP offers both drop tube and hopper level switches as automatic shut-off options. Both units are located at the last feeder in the line. Drop tube switches and hopper level controls are also available with an optional proximity style switch with time delay.

AP Precise Control





Power Units
The Flex-Flo™ auger is driven by a 1/3 AP Direct Drive Unitto 1-1/2 hp, totally enclosed, fan cooled motor at a standard 358 RPM (other speeds available for special applications). Whether direct or belt driven, the drive system includes an easily accessible maintenance port, a safety back AP Belt Drive Unitup switch and visible light warning of back ups in the feed line, and automatic thermal shut-off switch.

  Extension Units
For applications requiring distances over the maximum auger length for that size auger, extension hoppers are available to extend the overall length ofAP Extension Units the Flex-Flo system. Extension hoppers can be installed at 90° from the original auger to make turns and extend Flex-Flo Augers without using elbows.



  Drop Tube Kits
AP’s original drop kit is available for all Flex-Flo Systems AP Drop Tube Kitsproviding a totally enclosed outlet drop.
  Kwik-Attach Drop Kit
The Kwik-Attach drop kit is AP Kwik-Attach Drop Kiteasy to install and attaches securely to avoid feed spills. This kit allows for complete clean out of feed and can be adapted with actuators for remote operation.AP Kwik-Attach Drop Kit


  AP Y-Drop Dimensions   AP Y-Drop


AP Flex-Flow Specifications


                 Call Lange Ag Systems for new or replacement parts 


040-0246 M220 pvc tube coupler
040-0246 M300 pvc tube coupler
040-0276 M350 pvc tube coupler
040-0306 M500 pvc tube coupler
relay w/ 110v coil
relay w/ 220v coil
relay for Smart-Flex (4 pole St No 240V)
Old Style

040-0218 M220 anchor bearing
040-0262 M300
anchor bearing
040-0292 M350
anchor bearing
040-0320 M500
anchor bearing
New style

040-0263 M300 anchor and bearing assembly
040-0291 M350
anchor and bearing assembly
1/4" x 3 1/2" S.S. screw hook
15oz bottle gear oil 80W-90
pinion gear 1/2" dia. bore for 1/3, 1/2, and 3/4 hp motors
pinion gear 5/8" dia. bore for
1, 1 1/2hp motors
4.81:1 ratio gear reducer (358rpm)
11.1:1 ratio gear reducer (156rpm)
gear reducer (250rpm)
220, 300, 350 power head drop

power head drop
w/prox hole for Smartflex
M500 power head drop

040-0404 1/3HP, 60HZ Auger Drive Motor
040-0405 1/2HP, 60HZ Auger Drive Motor
040-0406 3/4HP, 60HZ Auger Drive Motor
040-0407 1HP, 60HZ Auger Drive Motor
040-0408 1 1/2HP, 60HZ Auger Drive Motor

040-0413 direct drive power unit
w/358 gear box
040-0414 direct drive power unit
w/358 gear box
040-0415 direct drive power unit
w/250 gear box
040-0416 direct drive power unit
w/358 gear box
040-0417 direct drive power unit
w/250 gear box
040-0418 direct drive power unit
w/358 gear box
040-0418-1 direct drive power unit
w/250 gear box
040-0419 direct drive power unit
w/358 gear box
040-0419-1 direct drive power unit
w/250 gear box



© Lange Ag Systems
193 County Road 9 NE
Willmar, MN 56201
Phone: 320.231.1470 | 800.479.0243
Fax: (320) 231-1471