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The 757 South Dakota Seed Blower utilizes airflow through a column generated by a blower-motor combination. The motor is 1/3HP, 110V/220V, 50/60Hz and operates at 3,450 RPM.

Separations are accurately controlled by a calibrated valve cap in the top of the column. We offer three column sizes: 1½" I.D. x 23¼" H, 3" I.D. x 34¼" H, and 4" I.D. x 35¼"H.

Air columns are precision built to trap lightweight seed and chaff, collecting pure seed in the "cup" located at the bottom of the column. The cup has a wire mesh bottom to prevent seed from falling into the fan. Mesh sizes are: 1½"–100 mesh, 3"–50 mesh and 4"–30 mesh.

The 757 base measures 20" L x 20" W x 30½" H. This permits easy viewing of the calibrated air valves on all three-column sizes. Additional features include a 5-minute timer, on/off control knob and a hand brake to stop the motor instantly to eliminate coasting of the blower fan. Ship wt. 155 lbs. Net. wt. 110 lbs. Tube sets ship wt. 5 lbs.

Also available is the 757-RC, 4" tube with removable cup for easy access to the cleaned sample (see photos to the left) and with removable containers off the side of the column, in lieu of baffles as in the standard columns.

Seedblower table 110V, 50/60Hz ............................................................. No. 757
Seedblower table 220V, 50/60Hz ............................................................. No. 757/A
Small tube set (1½" & 3" columns) .......................................................... No. 757-3
Large tube set (4" column) ..................................................................... No. 757-4
Replacement timer for Seedblower ..........................................................  No. 757-TIMER
4" Tube with removable cup....................................................................  No. 757-RC