Greenhouse Curtain Cranks
Our greenhouse curtain cranks allow you to easily roll up your greenhouse sidewall curtains. Simple and reliable manual hand cranks. Choose from single or dual output. Reliable and low-cost ventilation.
Operating your manual ventilation system requires the right greenhouse curtain cranks and mounting method. Get a curtain crank with the correct gear ratio for quick and easy cranking.
Whether you require guide wheels for a curtain operation or mounting plates for a stationary, drive shaft operation, we have the right manual operator for you.
If you have any questions about our manual gear cranks, be sure to contact one of our experts.
Gear Chain Wheel Bracket/Keeper
Single Output, Internal Brake
Manual operator with a 1/2″ square adapter slot and guide wheels. Choose from hand or drill powered and easy rolling
Dual Output, Internal Brake
Single Output, Hand Brake
Replacement Gear Crank
Roll Bar Adapters
Gear Loop Replacement
48″ Manual Gear Crank 7:1 Gear Box
96″ Manual Gear Crank 7:1 Gear Box
Gear Chain Wheel Crank 15:1 For Sidewall Curtains
Gear Chain Wheel Assembly 15:1 ratio, 1/2 x 1/2 square output w/ 4 wheel guide assembly, 26′ chain and chain