Overview

　　The Guanshentai Automatic Centrifuge Tube Capping Machine is specialized equipment designed to automatically screw caps onto cylindrical tubular containers, such as centrifuge tubes, test tubes, cryovials, and sampling tubes. Integrating automatic tube and cap feeding, pre-threading/positioning, precision capping, torque control, and automatic tube discharge, the system automates the entire process—from handling bulk tube bodies and caps to producing sealed, finished tubes. With a capping speed of 40–80 tubes per minute, it effectively replaces manual capping operations.

　　Key Advantages:

　　Precision Capping Mechanism: Driven by a servo motor and featuring flexible gripping jaws, the capping head allows for precise torque setting and real-time monitoring (torque control accuracy of ±0.05 N·m). This ensures consistent tightness across all tubes, guaranteeing a secure seal while preventing issues caused by overtightening, such as stripped threads or cracked tubes.

　　Cross-Contamination Prevention Design: Contact surfaces on the capping head are coated with Teflon or silicone to prevent damage to the tube wall during gripping and positioning. Furthermore, the capping head contacts only the exterior of the cap, ensuring the inner rim of the tube opening remains free from contact contamination and meets laboratory cleanliness standards.

　　Pre-threading and Positioning Function: Equipped with a pre-threading mechanism, the machine positions and partially threads the cap onto the tube opening before it moves to the main capping station for final tightening. This effectively prevents thread misalignment and poor sealing caused by tilted or crooked caps.

　　Material Shortage Detection and Rejection: Fiber-optic sensors at each station enable multiple error-prevention functions—such as skipping capping if a tube is missing, skipping the capping action if a cap is missing, and automatically rejecting tubes that are not tightened correctly—thereby ensuring a high yield of qualified products.

　　Compatibility with Various Specifications: By swapping out capping head molds, tube feed tracks, and cap-feeding vibratory bowls, the machine accommodates 10–50ml centrifuge tubes and their matching screw caps (flat, concave, attached caps, etc.). It is also compatible with test tubes, cryovials, and sampling tubes ranging from 10mm to 30mm in diameter, making product changeovers quick and efficient.

　　Flexible Feeding System: Tube bodies are automatically fed via a vibratory bowl or hopper-lift system, while caps are oriented and fed using a vibratory bowl. The feeding process is smooth and steady, preventing jams or material damage and eliminating the need for frequent manual replenishment.

　　Reliable Materials: Parts in contact with the product are made from SUS304 stainless steel, Teflon, and food-grade silicone. These materials are corrosion-resistant, easy to clean, and compliant with hygiene standards for the production of laboratory and medical consumables.

　　User-Friendly Operation: The system features a PLC and touchscreen HMI. Parameters such as capping speed and torque values can be set with a single touch, and multiple product recipes can be saved and quickly recalled during changeovers. General operators can master the system after simple training.

　　Applications:

　　Widely applicable to the automatic capping and sealing of various screw-cap tubular containers, including life science consumables (centrifuge tubes, micro-centrifuge tubes, screw-cap cryovials), medical consumables (vacuum blood collection tubes, urine catheters, sputum cups, sampling tubes), in vitro diagnostic reagents (test reagent tubes), and other laboratory supplies. With its efficient, precise, and clean capping performance, the Guanshentai automatic centrifuge tube capping machine helps manufacturers upgrade their tube sealing processes to automation, effectively reducing labor costs while enhancing sealing consistency and product quality.

　　Equipment Details:

　　Model Number: GST-LXG101A

　　Sizes: L280cm*W120cm*H190cm

　　Weight: 800kg

　　Power: 4.5KW

　　Production Capacity: 2,500 pieces/hour

　　Voltage: 220V

　　Core Component: Motor

　　Customized Support: Yes