PK-21M Large capacity high-speed freezing centrifuge
Product Model:PK-21M
Maximum speed:21000r/min
Maximum centrifugal force:47400xg
Maximum capacity:6×500ml
Product Introduction:
This model of product has stable performance, small size, light weight, novel and beautiful appearance; A versatile machine with a wide range of centrifuge tube capacities (1.5ml-5000ml), widely used in fields such as biopharmaceuticals, chemical engineering, education and research, healthcare, disease control, environmental protection, agriculture, forestry and animal husbandry, and water conservancy. The PK-21M high-speed cryogenic centrifuge is an essential instrument for centrifugal separation of various samples in these industries, such as blood, drugs, preparations, chemical materials, etc.
Technical performance and characteristics:
1、The display adopts IPS wide viewing angle high-definition, high brightness true color large LCD screen display.
2、Full screen touch, can be operated with gloves or a pen, convenient, safe, and reliable.
3、Control system:
① Comes with date and time display for easy recording of experimental data. Ultra large capacity data storage, experimental data and fault information can be traced and queried.
② Speed, centrifugal force, temperature, time, lifting speed, and rotor number display both set parameters and real-time operating parameters.
③ Real time operation of temperature, speed, and centrifugal force can be displayed in curves.
④ You can bring an electronic version of the manual.
⑤ It has the function of displaying the speed and centrifugal force acceleration and deceleration operation curves, and controls the acceleration and deceleration rates in 16 gears to prevent secondary suspension. ⑥ It has start timing, reach speed timing, and jog function.
⑦ It has multiple warning functions such as overcurrent, overvoltage, undervoltage, overspeed, overtemperature, and imbalance.
⑧ Selection mode for Chinese and foreign languages. Prevent unexpected situations from causing the program to be tampered with or deleted.
⑨ Password management mode is available.
⑩ Gradient centrifugation can meet diverse experimental needs.
4、Adopting a brushless AC variable frequency motor drive, it has no carbon powder pollution, long service life, three-level shock absorption, low noise, and small vibration.
5、The instrument uses imported high-performance compressor units from well-known brands and environmentally friendly fluorine free R404a refrigerant, with dual circuit temperature control for refrigeration and heating. It has pre fabricated cooling, preheating, and defrosting functions, as well as a unique heat dissipation system, which achieves the best cooling effect for the instrument.
6、The rotor and adapter are made of high-strength and high-quality aviation aluminum alloy, polyamide fiber material, biosafety airtight silicone rubber sealing ring, and biosafety cover to prevent air melt glue contamination. The rotor can be sterilized at high temperatures and can be equipped with an identification system.
7、All steel spray coated shell, 316 stainless steel centrifugal chamber, rust and corrosion resistant, electronic mechanical self-priming door lock, three-layer steel protective layer, ensuring environmental and personal safety.
Technical Specifications:
Model | PK-21M |
Maximum speed | 21000r/min |
Maximum centrifugal force | 47400xg |
Maximum capacity | 6×500ml |
Rotational speed accuracy | ±10r/min |
Temperature control accuracy | ±1℃ |
Refrigeration system | Renowned brand compressor unit, using environmentally friendly non-fluorinated refrigerant R404a |
Temperature range | -20℃~40℃ |
Display mode | LCD/IPS wide-view full-color large LCD full touch screen (no buttons) |
Timing mode and range | 1–9999min,Start timing, reaching the speed timing, instantaneous and continuous timing |
Speed up and down mode | 16-speed up and down |
Instrument power | 4KW |
Program storage | 99 groups or more |
Overall noise | ≤65dB(A) |
Driving system | High performance brushless variable frequency motor with strong torque |
Power source | 220V 50HZ |
Overall dimensions | 680×720×1010mm |
Outer packaging size | 800×940×1410mm |
Instrument weight | 210kg |
Gross weight | 240kg |
Key component material | Centrifuge chamber 316, centrifuge tubes/bottles made of PP/PC, rotor body made of aluminum alloy |
Adaptive rotor and parameters:
rotor | Rotor type | capacity | Maximum speed | Maximum centrifugal force |
1N | Angle rotor | 16×10ml | 21000r/min | 47400×g |
2N | Angle rotor | 6×50ml | 20000r/min | 43000×g |
3N | Angle rotor | 8×50ml | 15000r/min | 27210×g |
4N | Angle rotor | 6×70ml | 15000r/min | 25700×g |
5N | Angle rotor | 8×100ml | 12000r/min | 19800×g |
6N | Angle rotor | 4×300ml | 12000r/min | 23500×g |
7N | Angle rotor | 6×300ml | 10000r/min | 18546×g |
8N | Angle rotor | 6×500ml | 9000r/min | 14400×g |
9N | Angle rotor | 32×1.5ml | 20000r/min | 43000×g |
10N | Swing rotor | 4×750ml | 4000r/min | 3360×g |
11N | Angle rotor | 4×300ml | 12000r/min | 23500×g |
12N | Angle rotor | 6×300ml | 10000r/min | 18546×g |
13N | Angle rotor | 6×500ml | 9000r/min | 14400×g |

