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Shanghai Shujun Instrument Equipment Co., Ltd
In depth analysis of the functional characteristics of the core components of the Bellco bottle turning machine
Date: 2025-10-23Read: 1
In large-scale biomanufacturing fields such as biopharmaceuticals, vaccine production, cell engineering, and tissue culture, bellco rotary bottle machines provide cells with continuous nutrient supply and gas exchange environment through stable and uniform rotational motion, achieving high-density and large-scale cultivation. The stability of its operation, temperature control accuracy, and speed control are directly related to the growth status of cells and the quality of products. Thoroughly analyzing the functional characteristics of the core components of the Bellco bottle turning machine is the key to ensuring the successful scaling up of biotechnology.
1. Rotating spindle and drum system
The spindle is made of high-strength stainless steel and supports multiple parallel arranged rollers (rotating frames). The surface of the drum is coated with anti slip silicone or polyurethane material to ensure a stable fit of the culture bottle, avoiding sliding or vibration. The spindle is installed with precision bearings, running smoothly and having strong load-bearing capacity. It can accommodate dozens to hundreds of culture bottles at the same time, meeting the needs of industrial production.
2. Drive and speed regulation system
Using a low-speed high torque AC motor or servo motor, coupled with a reducer to drive the spindle rotation. Variable frequency drives or intelligent controllers achieve stepless speed regulation (usually 0.5-60rpm) to meet the needs of different cell types (such as Vero, CHO, HEK293) for adherent growth. Closed loop control ensures constant speed, unaffected by load changes, and guarantees consistency in the cultivation environment.
3. Constant temperature control system
The box adopts a double-layer insulation structure, with a high-density polyurethane insulation layer built-in, effectively reducing heat loss. The heating system (usually an electric heating tube) works in conjunction with a centrifugal fan, coupled with a high-precision PT100 temperature sensor and PID algorithm, to achieve uniform temperature control (± 0.5 ℃) inside the box, with a range of 28-40 ℃, which can simulate physiological or specific cultivation conditions.
4. Box and observation window
The overall box body is made of high-quality cold-rolled steel plate sprayed or fully stainless steel structure, with a smooth and easy to clean inner liner that meets GMP hygiene standards. The double-layer vacuum glass observation window facilitates real-time monitoring of cell growth status while maintaining good insulation performance. The door is equipped with high-temperature resistant silicone sealing strips to ensure airtightness and prevent contamination.
5. Timing and security protection system
Equipped with a microcomputer controller, it can preset running time, speed, and temperature, and support segmented program operation. Equipped with multiple safety mechanisms such as over temperature protection, motor overload protection, and automatic shutdown upon opening the door, ensuring the safety of equipment and operators.