Common Purchasing Tips for Laboratory Centrifuges

Laboratory centrifuges are widely used in fields such as biomedicine, petrochemicals, agriculture, and food hygiene. Their principle is based on the difference in sedimentation rates of various substances under the influence of centrifugal force, enabling the analytical separation of samples. Since the 1970s, benchtop centrifuges have undergone significant development. Due to their simple structure, low cost, and compact size, they quickly became standard equipment in laboratory settings.

A centrifuge is a high-tech product that integrates multiple disciplines and advanced technologies; therefore, when selecting one, it’s important to conduct thorough research from various angles. First, you should determine the model based on your specific application requirements, such as rotor type, rotation speed, capacity, and temperature control. Generally speaking, high-speed centrifuges are not suitable for low-speed applications, and specialized centrifuges are not appropriate for general-purpose use. General-purpose centrifuges, on the other hand, can accommodate both high-speed and low-speed applications, as well as features of both large-capacity and micro-volume centrifuges. They come equipped with a variety of rotors, making them highly popular in scientific research laboratories—but their price tends to be relatively high. After determining the model, you should further examine the product’s technical specifications, technical performance, maintainability, safety, stability, reliability, compliance with safety standards, price, design, and appearance.

Here are a few recommendations for your centrifuge selection:

1. Brushless motors are superior to DC motors;

2. Microcomputer control is superior to discrete-component control;

3. Controlling and displaying the sample temperature is more practical than controlling and displaying the chamber temperature.

4. Higher accuracy in rotational speed and temperature is better than lower accuracy.

5. The more comprehensive the safety measures, the better.

6. The more standard certification programs, the better;

7. A higher automation level is better than a lower one;

8. More features are better than fewer;

9. A wider range of head-turning options is better than a narrower one;

10. It’s better for the lifting and lowering speed to be fast than slow.

Once the rotor model has been determined, it’s advisable not to stock up on too many rotors, as their lifespan is limited by the number of centrifugation cycles and the duration of each run. Moreover, rotors are quite expensive; therefore, you should primarily focus on selecting rotors that will be commonly used over the next three to five years. The manufacturer’s after-sales service is also a key factor to consider. Centrifuge maintenance requires highly specialized technical expertise—not only for troubleshooting but also for addressing quality and safety concerns. According to regulations, after a major overhaul or when servicing safety-critical components, the centrifuge must undergo timely calibration. This includes verifying the accuracy of imbalance sensors, rotational speed, temperature control, electrical safety, and electromagnetic compatibility. Users should pay particular attention to this point.

After years of research, Shanghai Luxiangyi Centrifuge Manufacturer has found that centrifuges and centrifugation technology continue to evolve and improve. Brushless motors, multi-functionality, automation, microcomputer control, emphasis on safety and compliance with standards, and the enhancement of rotor quality and variety remain the key development directions for benchtop centrifuges in the future. Meanwhile, product quality, technical performance, after-sales service, and pricing continue to be the primary concerns for both manufacturers and users.

Shanghai Luxiangyi Centrifuge Instrument Co., Ltd. is sincerely at your service. For centrifuge price inquiries, please call 021-68113421; for after-sales service, please call 021-68113426.