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Double Swivel U-Joint & Handle
Item Number: DRU-2
Crank the roll up side up then swing the entire cranking arm, it will swivel
around. Set the handle on the ground at 90 degrees to the roll up shaft as seen
in photo.
This Double Swivel U-Joint crank with handle works just like our single swivel crank hardware.
It is only needed if the operator must position themselves at extreme right angles to the side being rolled up
Installed hardware outlined in Red on this greenhouse photo. other photos
show close up of hardware. Made from strong steel tubing. Fast and simple, our manual crank up hardware for
greenhouse roll up sides. Installs in minutes with only three self drilling
tech screws (included). simply snap clamp the bottom edge of the poly to
your pipe shaft running the length of your greenhouse use 1 3/8” fence tubing
or 1” emt tubing (not included).
Use 1 snap clamp ever 24 inches along the
length of the greenhouse side poly. Use #32 abs snap on clams for both 1 3/8" and for 1" emt roll up tubes, our hardware fits both and can be
adapted to some sizes of PVC pipe. The bellowing of poly roll up sides can be
controlled by lacing 1/4" to 5/6" between the upper wood band and the
lower wood band at diagonals over the poly in the closed position (see photo at
bottom of page). Poly can then be raised or lowered without the wind
bellowing it outward. (not recommended)
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