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As China Culture Bottle Automatic Welding & Cap-Screwing Equipment (Single-Station) Manufacturers and Culture Bottle Automatic Welding & Cap-Screwing Equipment (Single-Station) Suppliers, Kunshan Shifuda Automation Technology Co., Ltd. (Anhui Shifuda Automation Technology Co., Ltd.) is a modern enterprise integrating R&D, manufacturing, sales, and technical services. It is a relatively competitive equipment supplier in the domestic automation field.
1.Professional R&D, production, sales, ultrasonic plastic welding machines, non-standard automation, hot melt machines, testing equipment, automated assembly, tooling fixtures, molds and other machinery and equipment.
2.Our company mainly targets the plastic welding automation industry. The processes are as follows (ultrasonic welding process, hot melt process, hot plate process, hot riveting process, high frequency welding process, high frequency welding process, eddy current process, etc.)
3.Our company also has a lot of R&D equipment in the water treatment industry, including DTRO diaphragm welding, MBR flat membrane welding, and tubular membrane welding.
4.Logistics industry, (post-processing equipment for hoarding boxes, hollow panels, post-processing equipment for turnover boxes)
5.Medical industry, (blood collection needles, cover pockets, negative pressure drainage bags, peripheral blood collection needles, infusion tubes, scalp needles, retention needles, heparin caps, etc., multiple automated assembly and welding equipment)
Our company has in-depth research in the automotive field, logistics field, medical field, toys, electronics and other fields.
The company's main service industries: automotive, medical, environmental protection, cosmetics, electronics, etc. The core technical capabilities include automated welding equipment, post-processing of hollow board enclosures, post-processing equipment for automobile enclosures, and non-standard automation equipment for medical device products. Design and manufacturing, specializing in providing welding equipment for medical device products, making significant contributions to the industry. We have multiple patents on ultrafiltration, MBR flat membrane, DTRO membrane and other water treatment equipment.
We have established a complete customer service system and have a well-trained and skilled technical service team to serve customers, including R&D and pre-manufacturing technical solution customization, equipment installation and commissioning, technical training and 24-hour after-sales technology Support Services.
This equipment automates two key finishing steps for cell-culture bottles (flasks) and similar laboratory consumables — welding the bottle neck or attached components, and screwing on the cap — combining them into a single continuous process on one compact single-station machine. It suits manufacturers who need a flexible, lower-footprint solution, such as smaller-batch production runs, product trial lines, or filling gaps between larger automated lines for different flask sizes.
In operation, the bottle is loaded and positioned in a fixture that holds it steady during welding, where heat or ultrasonic energy joins the required components (such as a vent-cap boss or neck fitting) with a leak-tight, burr-free weld. The cap-screwing head then applies a controlled, repeatable torque to seat the cap to the correct tightness — tight enough to maintain sterility and prevent leakage, but not so tight that it damages the cap or bottle neck threads. Torque and weld parameters can be stored as recipes for different bottle sizes and cap types.
Because it is a single-station design, cycle time is generally lower than a multi-station rotary line, making this configuration a good fit for manufacturers prioritizing flexibility and quick product change-over over maximum throughput. Automatic operation removes the inconsistency of hand-tightening caps to a "feel," giving a more uniform, quality-controlled finish across a production batch.
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