The lift crank connects to the sidewall with 3/4" conduit (not included). The 4:1 gear system allows for variable ease of use, accommodating both seasoned professionals and people just getting started.
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Manual Crank Features:
- Gear Ratio: 4:1
- Max. Roll Length: 295FT (90M)
- Weather and Rust resistant stainless steel handle
- Plastic Resin Enclosure ensures longevity of gear and system even in harsh environments
- Connects to sidewall with 3/4" EMT Conduit (Attachment Screws included / Conduit not included)
- The ultimate greenhouse ventilation kit to help your greenhouse flourish. Create a better environment for plants. Increase plants production
- Max. Roll Length: 295FT (90M). 4:1 Speed gear ratio for easy cranking. Able to crank a 50’ length of schedule 40 pipe with no problem or strain
- Easy installation, simple operation and reliable self-locking performance. Automatic brake holds sidewall in place. Reduce the labor costs with an precise pulley, anti-aging easy to roll up system
- Winch with handle and screws only; does not include 3/4" EMT guide post. Stainless steel handles, Full plastic resin casing,long anti corrosion time
- Drive shaft fits perfectly inside 3/4" EMT conduit; attachment screws included
- The ultimate greenhouse ventilation kit to help your greenhouse flourish. Create a better environment for plants. Increase plants production
- Max. Roll Length: 295FT (90M). 4:1 Speed gear ratio for easy cranking. Able to crank a 50’ length of schedule 40 pipe with no problem or strain
- Easy installation, simple operation and reliable self-locking performance. Automatic brake holds sidewall in place. Reduce the labor costs with an precise pulley, anti-aging easy to roll up system
- Winch with handle and screws only; does not include 3/4" EMT guide post. Stainless steel handles, Full plastic resin casing,long anti corrosion time
- Drive shaft fits perfectly inside 3/4" EMT conduit; attachment screws included
