Greenhouse Film Roll Up Machine, Manual Winch Greenhouse Film Roll Up for Roof or Side Unit, Greenhouse Hand Crank Winch with Automatic Lock Function, Multiple Specifications

Greenhouse manual film roll-up device: Our manual film roll-up device can make greenhouse ventilation more convenient, create a suitable temperature environment for plant growth, help plants grow vigorously, and increase the yield of vegetables and other plants. Self-locking function: Since the film rolling machine is equipped with a self-locking device, it can be stopped and started at any position without any auxiliary device during the opening and closing process of the film rolling machine. Safe and durable: (1) Cast aluminum shell (2) Comfortable rollers (3) High quality chain (4) Reinforced screws (5) Pulley design (6) 45# International Steel (7) Chain length 4m / 6m / 8m, (8) ) Installation of roof and side walls. Multifunctional: Our greenhouse film winding device can easily open the skylights or side windows of the greenhouse. In summer, the greenhouse film can be opened for greenhouse ventilation. In winter, the greenhouse can be covered with "quilts" to keep the greenhouse at a constant temperature. Manual winches are ideal for home or commercial farms/ranches. Wide range of applications: The greenhouse film roll machine is very suitable for breeding greenhouses, flower greenhouses, vegetable greenhouses, fruit greenhouses and sightseeing greenhouses. It is easy to roll up greenhouse film and save human resources.