CR Manufacturing can custom build a complete grain truck probe system designed to safely increase your speed and efficiency. Grain truck probes can be installed on your scale or remotely for improved truck staging for country elevators, livestock feeders, food plants, feed mills, grain terminals, ethanol plants, flour mills, unit train facilities. Grain sample lines can be underground or overhead.

Shuttle II Grain Truck Probes

Shuttle II Probe

Designed For Remote Grain Truck Probe Locations


Shuttle II probe is a heavier built grain truck probe designed for high volume locations and the constant use required by the ethanol industry, grain processors and terminals. The Shuttle II is a taller unit - 14', has a longer boom reach - 9' to 14 1/2', longer sample head - 9', uses replaceable bearings at all the wear points, and has the same 'operator friendly' features as our standard Shuttle Grain Truck Probe.

Underground remote probe (two truck lanes) installation with truck intercom system.

Shuttle II Grain Truck Probe Standard Features:


Replaceable Bearings at All Wear Points - The Shuttle II uses oil-impregnated bronze bearing instead of roller bearing.  With bronze bearing, we gain more surface wear area than a ball bearing and they  handle the shock load of being continually jammed into a load of grain. All the Shuttle II bearings are replaceable and can be greased.


9-ft. Pneumatic Sampling - The longer 9-ft. sample head makes it easy to reach to the bottom of semi's, and is still the quickest and most accurate method of sampling grain. No moving parts, no grain damage caused by the opening and closing of the probe doors. Our Pneumatic Stinger works on air flow, and only draws in what is forced up in the tip.


Low Pressure Hydraulics - Too much hydraulic power, especially on aluminum trailers, makes it that much easier to damage and poke holes in the trailer. Our Shuttle Probes can generate about 700 lbs. of down pressure, but from experience we have learned that 200 to 300 lbs. of down pressure more than enough to probe to the bottom of a semi hopper (see Automatic Sampling). Our hydraulic system pressure is set to a maximum of 750 psi compared to the 1200 to 1500 psi with other probes.


Aircraft Hydraulic Oil -  Provides excellent cold weather operation and eliminates the need for a hydraulic tank heater. Food-grade hydraulic oil is also an option.


Free Turning Design - When a truck leaves too soon, the probe stinger is free swinging and the mast assembly will free turn side to side with out damaging the turn chain, turn motor, etc. You can go right back to probing trucks. No shear pins or chains and sprockets to repair.


Auto-Cycle Sampling - Besides saving time, our auto-cycle sampling feature is pressure sensitive.



Self-Contained Design - All hydraulic, vacuum, and electrical components are located in the probe base. Beside being a cleaner design, it helps to protect the hoses & wiring from damage and weathering.


Extendable Boom - Extendable boom telescopes 5-1/2 ft. from 9' to 14- 1/2'.


Dual Flood Lights - Probe is equipped with two incandescent flood lights for night time use. LED flood lights are also available.


Signal Buzzer - Loud probe mounted buzzer is normally used to signal drivers when they can leave.


Hydraulic Pump Timer - If the probe is not used for 5 minutes, the hydraulic pump will shut off automatically and restarts when one of the function buttons is pressed (up - down - left - right, etc.)


Basic Probe Information:

Hydraulic system: 3hp 220VAC (single phase), 750psi, 3.8gpm, 2.5 gal. reservoir, air craft hyd. oil.

Vacuum system: 1hp, 220VAC, 3 stage pump.

Electrical requirements: 220VAC/30amp (single phase).

Probe controls: 12VDC, push-button operation.

Minimum concrete pad: 48x48x36 deep. (pad size varies, depending on installation)


Probe Specifications:

Base foot print: 36" x 36" deep x 4' 6" tall. (8) 3/4" x 8" anchors

Mast: 6 x 6 x 3/8 square tube.

Extendable boom: 4 1/2 x 4 1/2 w/ 4 x 4 x 1/4 telescoping.

Stinger (sample head): 2 1/4 od x 9 ft.



Download Shuttle II Probe dimensions pdf


Download Shuttle II Swing dimensions pdf

Our service after the sale is unmatched in the industry!

CR Manufacturing  •  3724 Westgate Road, Grand Island, NE 68803  •  (308) 381-6662  •  (888) 461-7040  •  Fax (308) 381-6606

CR Manufacturing is wholly owned by Oklief, LLC.