Self Locking Lightweight Hand Crank Film Roller Agriculture Greenhouse Accessories
1. The surface of the Korean-style hand-cranked film reel is protected by double-layer anti-rust protection with galvanized inside and outside, and the standard parts are made of stainless steel.
2. There is a hole at 2/3 of the handle of the Korean-style hand-cranked film winder. If the handle is installed here, the radius of rotation of the handle will be reduced, so it can also be installed and used in small spaces.
3. The speed ratio and torque make it labor-saving and convenient for you to use.
4. Easy installation, convenient operation, reliable self-locking performance;
5. Add a transition gear transmission, the performance is more stable;
6. Large speed ratio, large output torque and light weight;
7. Wide range of uses, in addition to opening film greenhouses, you can also
8. Manual control of small area rack and pinion drive ventilation windows;
9. Warranty for three years.
| Torque | Usage | Speed ratio | Weight |
| 30N.m | Side window | 4:1 | 1.5kg |
| 30N.m | Side and top window | 4:1 | 2.2kg |
| 50N.m | Side window | 5:1 | 3.0kg |
| 40N.m | Top window | 5:1 | 4.2kg |
It's widely used for Plastic Tunnel Greenhouse and Multi-Span greenhouse. With this Greenhouse Hand Crank, you can easily roll up the roof window of greenhouse, keeping your plants grow in better environment.
Tough shell cover is made of cast aluminum with plastic coating. Standard stainless steel is galvanized with plastic resin for double anti-rust and anti aging. Precise steel pulley with 4:1 reduction ration, it's easy to roll up the film curtain or shading cloth to right position you want.
