The technical requirements for a universal desktop centrifuge typically involve the following key aspects:
1. Speed range
The speed of a universal desktop centrifuge is usually between 0-20000 rpm, depending on the equipment model. Some high-speed centrifuges can reach 30000 rpm or higher to meet special experimental requirements.
2. Maximum centrifugal force (RCF)
The maximum centrifugal force refers to the maximum centrifugal acceleration that a centrifuge can withstand at its maximum speed, usually expressed in g (gravitational acceleration). The common maximum centrifugal force can be between 15000g-30000g, depending on the centrifuge speed and rotor design.
3. Temperature control range
To protect the samples, many desktop centrifuges are equipped with temperature control systems. The temperature control range is usually between -20 ° C and+40 ° C, and some high-end centrifuges can also be extended to lower temperature ranges (such as -80 ° C), suitable for temperature sensitive sample processing.
4. Timing range
Centrifuges typically have a timing function of 0-99 minutes, and some devices also support unlimited or continuous operation modes. The timing setting can be precisely controlled according to the experimental needs.
5. Rotor and tube seat
The centrifuge is equipped with different types of rotors, such as fixed angle rotors, horizontal rotors, or suspended rotors. The capacity of the rotor can range from 0.2mL to 500mL.
The rotor material is usually aluminum alloy or stainless steel, and some special purpose rotors may use higher strength materials (such as titanium alloy).
6. Noise level
To ensure a quiet laboratory environment, the noise of modern desktop centrifuges is usually controlled between 50-70dB.
7. Power Requirements
Usually requires a power supply of AC220V ± 10%, 50/60Hz. Some models may support 110V power supply.
8. Security protection
Desktop centrifuges are equipped with various safety protection devices, such as:
Overspeed protection: prevents the centrifuge speed from being too high, ensuring safe operation.
Unbalance protection: If the sample tube is unbalanced, the centrifuge will automatically stop running.
Door lock protection: During operation, the centrifuge door cannot be opened to ensure the safety of the operator.
9. Display and operation interface
Usually equipped with LCD screen or LED display screen, it clearly displays the current parameters such as speed, centrifugal force, temperature, timing, etc.
The operating interface is usually button type or touch screen, which is convenient for users to set and operate.
10. Volume and weight
The volume of a universal desktop centrifuge is relatively small, typically ranging from 30-40cm in height, 40-50cm in width, and weighing approximately 20-50kg, making it suitable for placement in a laboratory.
11. Cooling system
Some desktop centrifuges are equipped with built-in cooling systems, which are suitable for samples that require precise temperature control. The cooling system can quickly control the temperature inside the centrifuge tube within the required range for the experiment, reducing sample loss caused by temperature rise.
These technical conditions help users choose suitable desktop centrifuges based on experimental needs to ensure the accuracy of experimental results and the safety of operation.