680 and 760 Bus Grain Wagons
Model 680SD and 760SD Short Turn Gravity Boxes with 24 Ton Running Gear
FEATURES INCLUDE:
  1. 680 bushel capacity upgradable to 760 bushel capacity with the addition of side extensions. Dual compartments are also available.
  2. 24 Ton Short Turn running gear with "cushion" tongue available with two-wheel hydraulic disc or four-wheel hydraulic drum brakes.
  3. Offset steel runners allow a sharper turning radius and greater mobility.
  4. Pat. Pending side discharge chute adjusts from 14" to 19" tall unloading height in seconds without tools.
  5. Heavy-duty 3 3/8" diameter sleeved spindles provide maximum strength and durability.
  6. Pull through extended rear hitch eliminates stress on the rear axle during tandem towing. Rear 7-prong connector receptacle provided for easy hook-up.
  7. Heavy duty 12 ga. tank and side construction.
  8. Tank sump design and valley flats provide complete cleanout...even in high moisture grain.
  9. Steep end slopes and wide door for faster unloading. A high-intensity lamp near the door is included.
  10. Standard metering door with heavy duty gear reduction door opener for effortless opening, even when the box is completely full!
  11. New style rocking bolster increases stability, yet provides flexibility in rough terrain. Rubber cushion pads between gravity box and running gear reduces noisy 'chatter' during empty transport.
  12. Tie rods are positioned behind the axle for greater protection. Front wheels have an automotive tow setting for true-tracking.
  13. Bronze bushings are located at steering wear points for easy and inexpensive maintenance.
  14. Large dual inspection windows for increased visibility.
  15. Deluxe light package with SMV emblem.
  16. Choice of Red, Green or Blue polyurethane paint with primer coat and graphite coated interior.








TANK DESIGN IS KEY FOR COMPLETE CLEANOUT
Drop off points of Sump Design start initial flow and pull grain into the unloading chute for complete cleanout.
A common misconception is that all wagons are designed the same. Therefore, it is assumed that the wagon with the greatest amount of backslope will cleanout better. This is not necessarily true.
Some competitor wagons rely soley on steep slopes and gravity for unloading. With their design, the angle of slope becomes critical for complete cleanout, especially in high moisture grain. With these designs, an extra degree in slope could make all the difference.

We take the design of the tank one step further. Not only are our wagons engineered with a steep back slope, but we also utilize a Sump Design with Valley Flats to maximize cleanout. Valley Flats don't allow grain to hang up in the corners of the tank while the Sump Design "pulls" grain into the unloading chute. Not All Wagons Utilize This Feature! This is why J&M gravity wagons have built an excellent reputation for complete cleanout even in high moisture grain.





REINFORCED SPINDLES FOR MAXIMUM PERFORMANCE AND DURABILITY

Welding directly on a spindle shank significantly compromises the integrity and strength at the weld location. This process creates a brittle area in the spindle that is prone to breaking

J&M uses a thermal dynamic process that has the opposite effect. Our process uses heavy wall sleeves that are heat shrunk around the spindle. (Since there is no welding on the shank, the original properties of the spindle remain intact, eliminating the creation of a brittle area prone to breakage.)

This proven process has been successful in preventing spindle breakage on J&M wagons for years.


680SD and 760SD Short Turn Gravity Wagons with 24 Ton Running Gear
Specifications 680SD 760SD
Capacity - Box* 680 bushels 760 bushels
Door Width 48" 48"
Chute Height (Tool-Less) Adjustable 19" to 14" Adjustable 19" to 14"
Hopper Construction 12 GA Steel 12 GA Steel
Understructure 3" x 6" runners 3" x 6" runners
Tailights Standard Standard
Front Ladder Standard Standard
Center Dump Deflector Optional Optional
Capacity - Running Gear 24 Ton 24 Ton
Spindles 3 3/8" diameter 3 3/8" diameter
Wheels 22.5 x 13 - 10 bolt 22.5 x 13 - 10 bolt
Tires 16.5 - 22.5 or 18 - 22.5 16.5 - 22.5 or 18 - 22.5
Tongue, Spring Assist with Quick Hitch Standard Standard
Hydraulic Brakes 2-Wheel Disc, or 4-Wheel Drum 2-Wheel Disc, or 4-Wheel Drum
Weight (complete unit)** 6,800 lbs. 7,050 lbs.
*Bushel capacity was measured with #2 corn at 15% moisture (56 lbs. test weight)
**Calculated with 18 - 22.5 tires.

Dimensions
A 16'-6" 16'-6"
B 7'-11" 8'-7"
C 10'-2" 10'-10"
D 7'-8" 7'-8"
E 11'-2" 11'-2"
F 9'-6" 9'-6"
G 24'-0" 24'-0"
H 1'-5" 1'-5"
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