1、 Usage and characteristics:

The DWC-60 impact test low-temperature tank is the latest compressor refrigeration equipment developed by our company in accordance with the requirements for low-temperature devices in GB/T229-2002 "Metal Charpy Notch Impact Test Method". This equipment adopts imported Italian Aspara dual compressor refrigeration technology, adopts the principle of thermal balance and cyclic stirring method, achieving automatic uniform cooling and constant temperature of the sample, and can fully meet the temperature control indicators specified in the national standard GB/T229-2002. This equipment is easy to operate and has high work efficiency, making it the most ideal sample cooling and insulation equipment for low-temperature impact testing of materials. It can also be used for other low-temperature detection and experimental work.

2、 Main technical parameters:

1. Temperature control range:+30 ℃~-60 ℃ (room temperature ≤ 25 ℃) 

2. Constant temperature accuracy:<± 0.5 ℃ 

3. Cooling rate:+30 ℃~0 ℃ 1.5 ℃/min  

0 ℃~-20 ℃ 1.2 ℃/min

-20 ℃~-30 ℃ 1.0 ℃/min

-30 ℃~-60 ℃ 0.7 ℃/min

-40 ℃~-60 ℃, about 0.7 ℃/min

Note: The usage environment is at room temperature (23-25 ℃), and the compressor's temperature dissipation effect can be maintained during operation. The side doors can be fully opened. 

4. Maximum external dimension: 900 × five hundred and five × 800mm (length × high × Width ）

5. Effective space in the studio: 200 × one hundred and forty × 100mm （long × high × Width）

6. Number of samples that can be loaded:>60 (impact sample size: 10) × ten × 55mm)

7. Digital timer: 1 second to 99 minutes, resolution of 1 second 

8. Cooling medium: ethanol or other non freezing liquids 

9. Mixing motor: 15W 

10. Working power supply: 220V~240V, 50Hz, 2kW

11. Working temperature: ≤ 25 ℃

3、 Main equipment configuration:

1. One host 

2. One sample basket 

3. One sensor 

4、 Structure and working principle

1. Structure 

This equipment consists of a refrigeration compressor main body, a heating device, an electronic control box, a cooling tank, a cooling medium circulation system, an automatic alarm device, and other parts. Its structure is shown in the figure. 

2. Working principle-

After starting the refrigeration switch, the compressor starts working and the refrigeration system enters the official working state. The refrigeration compressor operates continuously, and as it approaches the set temperature, the heating device in the cooling tank begins to provide heat proportionally to balance the excess cooling generated by the refrigeration system and achieve constant temperature. Stirring can continuously circulate the cooling medium in the cooling tank, ensuring a uniform and consistent temperature.

5、 Service commitment

The equipment warranty period is one year from the official delivery date. During the warranty period, the supplier provides timely and free maintenance services for various equipment malfunctions. Timely and free replacement of all types of parts damaged by non-human factors. If the equipment outside the warranty period malfunctions during use, the supplier actively assists the ordering party in completing maintenance tasks.