Orbital Shaker LOS-B21 is a compact, benchtop single layer orbital shaker adopted with advanced technology and single-axis drive mechanism offers speed range of 50 to 300 rpm. Features advanced high torque motor with unique high precision frequency control system, ensures the safety of reagents used. Incorporated PID micro-processing controller, 8 segment self-programming program, offers automatic operation, automatic stop, timing operation, clock display, call recovery, and parameter memory. With enhanced safety features and alarm system, surveillant timer, unique slow-start circuit and auto power-off protection prevents sudden starts and splashes, over-heating and over temperature. Designed with LCD display and high-quality, high-tensile cold-rolled steel plate, medium plate, channel steel, angle steel, and cast iron it is a rust proof device.
| Controller | PID (Microcomputer scans the micro-processing chip) |
| Shaking mode | Orbital |
| Shaking speed | 50 to 300 rpm |
| Shaking accuracy | ±1 rpm |
| Amplitude | Φ50 mm |
| Shaking plate size (L×B) | 840×620 mm |
| Program control | 8 segments (user-controlled programs) |
| Working environment | User-specific thermostatic indoor or environment |
| Drive mode | Balancing device with single shaft |
| Convection mode | Natural convection |
| Display | LCD display |
| Timing range | 0 to 999.59 h |
| Shaking plate quantity | 1 pc |
| Security features | Automatic operation, automatic stop, timing operation, clock display, call recovery, parameter memory |
| Safety features | Independent leakage and over-current protection |
| Alarm system | Overspeed sound/light alarm |
| Surveillant timer | Yes |
| Circuit | Slow-start circuit |
| Power-off protection | Automatic |
| Material | High-quality, high-tensile cold-rolled steel plate, medium plate, channel steel, angle steel, and cast iron |
| Power | 150 W; 120 W inverter motor |
| Power supply | AC 200 to 240 V 50/60 Hz |
| Dimension (W×D×H) | 900×650×480 mm |
| Net weight | 200 kg |
| Flask Configuration | 54 pcs of 250 ml flask, 35 pcs 500 ml flask, 24 pcs 1000 ml flask, 6 pcs 5000 ml flask |
| Maximum Load Capacity | 30 Kg |
Orbital shaker is widely used across chemistry, biochemistry, molecular biology, microbiology, environmental and food sciences, clinical diagnostics, and eukaryotic cell culture etc. to agitate and mix samples and solutions in tubes, plates, and flasks.
Labtron Orbital Shakers provide 10 to 350rpm shaking speed for uniform sample mixing and incubation. They feature user-friendly interface for easy programming and monitoring of parameters. Their energy-efficient motors reduce operational costs while providing reliable and consistent performance. They support multi-sample processing, increasing throughput and efficiency in laboratory workflows significantly. Our Orbital Shakers offers consistent mixing and aeration for cell cultures and other samples.








The Orbital Shaker LOS-B21 offers a flexible speed range from 50 to 300 rpm, making it suitable for a wide variety of laboratory applications that require gentle to vigorous shaking. It is designed with high precision, maintaining an accuracy of ±1 rpm, which ensures consistent experimental results. This accuracy is particularly important when working with sensitive biological samples or cell cultures where even small fluctuations can affect outcomes. The orbital motion, combined with the 50 mm amplitude, delivers efficient and uniform mixing across all vessels placed on the shaker. Overall, the precise speed control of the Orbital Shaker LOS-B21 guarantees reproducibility and reliability in routine and research laboratory workflows.
The Orbital Shaker LOS-B21 is equipped with an advanced PID micro-processing controller that continuously scans and adjusts operational parameters for optimal performance. This intelligent controller not only manages the shaking speed with remarkable accuracy but also allows users to create and run up to 8 self-programmed segments. With features like automatic operation, timing, clock display, call recovery, and memory retention, the PID controller ensures smooth and error-free processes. Such functionality minimizes the need for manual monitoring, freeing up valuable researcher time. By enhancing stability and efficiency, the PID system makes the Orbital Shaker LOS-B21 ideal for laboratories with demanding mixing protocols.
The Orbital Shaker LOS-B21 has been designed with several built-in safety systems to protect both users and samples. It features independent leakage and over-current protection, ensuring that electrical faults do not damage the equipment or pose hazards in the lab. A unique slow-start circuit prevents sudden acceleration, which reduces the risk of splashes and loss of reagents. Additionally, an overspeed sound and light alarm notifies users immediately if the shaker exceeds its set limits, adding another layer of protection. Combined with automatic power-off functionality, the Orbital Shaker LOS-B21 offers peace of mind and safe operation even during extended experimental runs.
Durability is a key advantage of the Orbital Shaker LOS-B21 , as it is constructed from high-quality, high-tensile cold-rolled steel plate, channel steel, medium plate, angle steel, and cast iron. These materials are specifically chosen for their strength, rust resistance, and long-term reliability in laboratory environments. The rust-proof design ensures that the shaker can withstand exposure to chemicals, humidity, and continuous operation without deterioration. The sturdy construction also provides excellent stability, preventing unwanted vibrations during use. Thanks to its robust build, the Orbital Shaker LOS-B21 is a highly durable investment for laboratories seeking long-term performance.
The Orbital Shaker LOS-B21 is a versatile instrument widely applicable across numerous scientific and research fields. It is commonly used in chemistry, biochemistry, molecular biology, and microbiology for mixing reagents, culturing cells, and preparing samples. Environmental and food science laboratories also benefit from its consistent shaking action when processing solutions and testing material stability. Clinical diagnostic labs employ it for assays and routine mixing, while it is equally valuable in eukaryotic cell culture for promoting even growth conditions. With such broad applications, the Orbital Shaker LOS-B21 is a dependable choice for diverse laboratory workflows.
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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608