Descripción del producto

Nylon pulley: Designed by patent organization, it is of rolling friction when turning on or off, low resistance and easy opening and closing.
Return Spring: High-quality stainless steel spring, durable and rustless.
Pulley Accessories: Rigidity hard-drawn wire round steel, ensuring accurately openingRigidly connected will not be stretched, the surface is treated by galvanization in case of rust.

Operation of air inlet
Operators watch the pressure meter in the house, and operate winch hands, until it reaches to the setting data

Charactoristic of air inlet
1. The open-close of air inlet adopt Nylon pulley and rolling friction, the resistance is low, and inner is filled with *0mm Polystyrene to ensure the warm-keeping of the air inlet.
2. A group of air inlet could be opened at three angels which can realize ever ventilation. To realize uniform ventilation, angle of inlet near the fan should be smaller than those far from it.
3. Plastic contains the anti-ultraviolet raw material, making it longevity.
4. The spring of air inlet is stainless steel material, which is durable, rustless and not out of shape, the technics is delicate and ensure to be seamless after closing the air inlet.

We also can provide you with overvalue services:
1. Poultry House site Selection
2. Poultry House Design and Construction Preparation Guidance
3. Breeding Equipment Installation
4. After-sale Services