How to choose the constant temperature and humidity box, the professional service of Yashilin
1. Temperature range: What is the temperature range of the equipment, that is, the test standard to be made;
2. Humidity range: Whether the equipment needs to have humidity function, that is, it can refer to the test standard to be done;
3. Studio size: The size of the studio of the equipment needs to be large. The professional suggestion given by Yashilin with reference to the experimental standards is that the tested product only accounts for 3/1 of the studio size. Because the test chamber is circulated by the wind, if the work chamber is filled up, the temperature uniformity in the work chamber will be out of balance, and the test effect will not be achieved;
4, programmable function: whether the constant temperature and humidity box needs temperature cycling function, that is: repeated cycles between temperatures;
5, heat load: Many tested electronic products will require a live test, in the case of power, the product being tested will emit heat, resulting in a load. Because sometimes the equipment bought back, such as the standard is -20 degrees, but the final temperature can not be reduced at all, so when buying equipment must be with the manufacturer to explain the load situation;
6. Installation site: Please refer to whether the power of the equipment matches the power supply of the final laboratory. Please refer to the actual dimensions of the equipment and the final placement of the equipment to confirm that the equipment can safely enter our laboratory. Such as: laboratory door size, stairs, elevator size, etc.
Constant temperature and humidity box expert - Beijing Yashilin Testing Equipment Co., Ltd.
The Trommel Screen , also known as rotary screen,compost sieve or drum screen, is an essential unit which is used mainly in the mineral and solid waste processing industries. It consists of a motor, reduction unit, cylindrical drum, screen frame and sealing cover, which is normally elevated at an angle at the feed end. Physical size separation is achieved as the feed material spirals down the rotating drum, where the undersized material smaller than the screen apertures passes through the screen, while the oversized material exits at the other end of the drum.
Trommel screen can be used in a variety of applications such as classification of solid waste and recovery of valuable minerals from raw materials. Trommels come in many designs such as concentric screens, series or parallel arrangement and each component has a few configurations. However depending on the application required, trommels have several advantages and limitations over other screening processes.
Features
* Widely used for fertilizer and gravel sand sieving.
* Steady and smooth operation
* Low power consumption,Large capacity and more durable
* No noise,no vibration and Low Energy Consumption
* It can also be designed driven by V-belt.
Application
Trommel screen is applied to solid waste,compost, chemical, coal, construction, gold mine, plastic, recycling,metallurgy, mineral selecting,agriculture etc.
Our machines have an automatic 12 months guarantee against faulty material and workmanship valid from the date of dispatch in China or date of arrival at foreign border.
If any problem of the machine under instruction within one year,we are responsible for replacement incuding delivery fee and maintenance.
Lifelong service is offered with cost charge after one year.
Trommel Sieve,Compost Sifter,Rotary Soil Sieve,Trommel Screen
XINXIANG CHENWEI MACHINERY CO.,LTD , https://www.sieves.nl