DWC-190 Impact Specimen Cryostat
I. Overview
DWC-80 type Impact specimen cryostat tank is the latest compressor refrigeration equipment developed by our company according to the requirements for low temperature devices in GB/T229-2007 "Metal Charpy Notched Impact Test Method". This equipment adopts cascade compressor refrigeration technology, utilizes the principle of heat balance and circulating stirring method to achieve automatic and uniform cooling and constant temperature of the sample, which can fully meet the temperature control indicators specified in the national standard GB/T229-2007. The equipment is simple and convenient to operate and has high work efficiency, and is the most ideal sample cooling and heat preservation equipment in the metal low temperature impact test. It can also be used for other low temperature detection and test work.
Structure diagram
1. Electronic control box
2. Host
3. Sensors
4. Cooling tank
5. Cooling tank cover
6. Vent valve switch
7. Stirring motor
8. Nameplate
9. Cooling window
II. Main technical parameters
1. Temperature control range: 0ºC ~ -80ºC (room temperature≤25ºC)
2. Constant temperature accuracy: <±0.5ºC
3. Cooling speed:
0ºC ~ -20ºC 1.2ºC/min
-20ºC ~ -30ºC 1.0ºC/min
-30ºC ~ -40ºC 0.7ºC/min
-40ºC ~ -80ºC 0.7ºC/min
Note: Use the environment at room temperature (23-25ºC), keep the compressor heat dissipation effect when working, and open all the side doors.
4. Maximum dimensions: 900×505×950mm (length×height×width)
5. Studio effective space: 160×140×100mm (length×height×width)
6. Number of samples that can be loaded: >60 (impact sample size: 10×10×55mm)
7. Digital timer: 1 second ~ 99 minutes, resolution 1 second
8. Cooling medium: ethanol or other antifreeze
9. Stirring motor: 8W
10. Working power: 220V ~ 240V, 50Hz, 1.5kW
11. Working temperature; ≤25ºC
III. Structure and working principle
1. Structure
This equipment is composed of the main body of the refrigeration compressor, heating device, electronic control box, cooling tank, cooling medium circulation system, automatic alarm device, etc. Its structure is shown in the figure.
2. How it works-
After starting the refrigeration switch, the compressor starts to work, and the refrigeration system enters the official working state. The refrigeration compressor works continuously. When it is close to the set temperature, the heating device in the cooling tank begins to provide heat in proportion to balance the excess cooling capacity generated by the refrigeration system to achieve the purpose of constant temperature. Stirring can make the cooling medium in the cooling tank circulate continuously to make the temperature uniform.
IV. Equipment features:
The bottom of the equipment is equipped with universal casters, which is convenient to move the position; there is a sample basket, which is convenient to put and take samples; it is equipped with a liquid discharge port, which is convenient to recover the refrigeration medium and clean; it has a temperature alarm reminder and heat preservation timing.
Protection function: machine overload protection, leakage protection, phase loss protection, phase sequence protection, grounding protection, compressor overload protection, system pressure protection, medium over-temperature protection (anti-dry burning), etc.
V. Installation and use:
This cryostat has the characteristics of simple installation, convenient operation, fast cooling and high temperature control accuracy. The specific installation steps are as follows:
1. Place the cryostat horizontally and lock the casters.
2. Connect the 220V power supply and turn on the power switch.
3. Set temperature control temperature---set constant temperature time
5. After reaching the set temperature and the set constant temperature time, the buzzer will alarm.
FAQ
1. Are you a manufacturer?
Yes, we are one of the largest manufacturer of every kinds of testing machines in China. In general, every machine shipped from our factory provides 12 months of free maintenance, taking into account shipping reasons. We can extend the maintenance period for our customers for 2 months.
2. Do you have after-sales service? How can I ask? What about warranty?
Before the delivery of the equipment, we will carry out the factory inspection and the equipment will be shipped after the inspection. If your machine does not work properly, you can contact us and we will try our best to communicate with you via email or skype video chat. We promise we will reply to you within 24 hours and with 3 Within a working day to provide solutions. After confirming that it is really necessary, we can send you new parts or on-site maintenance.
The service does not include mechanical failure due to the following reasons:
(1) Wrong operation;
(2) Privately modified;
(3) Failure caused by non-equipment itself
(4) Use environment that is not suitable for equipment operation. Such as high temperature, humidity, corrosive gas or vibration.
(5) Problems caused by movement or transportation.
(6) Consumable components.
(7) Natural disasters
3. What is the delivery deadline?
Most of the time, we have inventory at the factory. If not, the delivery time is usually 15 to 20 days after receiving the payment. If you need it urgently, we can consider making special arrangements for you.
4. What kind of packaging and transportation do you use?
Under normal circumstances, we will use ordinary orders such as DHL, Fedex, UPS TNT transport. Large orders will use aviation or shipping.
5. Can the device be customized? Can I customize my own design on the device?
We can not only provide standard machines, but we can also provide customized machines according to your needs.
At the same time, we can also place your trademark on the machine.
6. What kind of packaging do you use?
Plastic sealed and sturdy wooden box.
7. What payment methods do you support?
Paypal, T/T, Western Union,L/C
Audited Supplier 
){kind=link}