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What is the glue supply accuracy of the single-tube precision screw valve glue supply series
source：www.cnkaihui.com | Release time：2026年01月05日1. Quantitative accuracy performance
The basic universal model typically achieves a quantitative accuracy of ±1%-±2%, with some models reaching ±0.3%-±0.5%. The micro-dispensing model can even achieve an accuracy of ±0.0002ml, with a dispensing volume as low as 0.0005ml, meeting the needs of micro-volume control scenarios in semiconductor packaging, 3C electronics, and other fields. This high precision stems from the sealed chamber structure of the eccentric screw and stator, coupled with the correct control of the screw rotation cycles by the servo motor, ensuring accurate measurement of the glue volume, and is not affected by fluctuations in glue viscosity or small fillers.
2. Advantage of repeatability
The repeatability of this series of products is generally greater than 99%, with some models achieving over 99.5%. The variation in glue supply over multiple dispensing cycles is minimal, ensuring consistent glue volume for each product in mass production and avoiding a decrease in product yield due to uneven glue volume. It is suitable for fields such as automotive electronics and optoelectronic displays, which require high process stability. The stability of its repeatability is attributed to the continuous delivery mechanism within a sealed chamber, which can avoid the glue volume fluctuation issues caused by pressure disturbances in traditional dispensing systems.
3. Anti-interference and adaptability
The precision of glue supply remains largely unaffected by fluctuations in feeding pressure, changes in glue viscosity (with an adaptive viscosity range typically from 0 to 500,000 CPS), and the presence of minute particles in the glue. It maintains stable precision across various working modes, including continuous coating and quantitative dispensing. Additionally, some models feature a suction function to prevent drips and leaks, further ensuring the precision of glue supply and the cleanliness of the working environment.
4. Factors affecting accuracy and optimization
In practical use, factors such as wear of the stator and rotor, changes in glue temperature, and clogged needles can affect accuracy. It is recommended to regularly replace the stator and rotor assembly, maintain stable glue temperature, and select appropriate needle specifications. Coupled with a high-precision controller (such as a model with a pressure accuracy of 0.001 MPa), it can maintain a high-precision glue supply state for a long time.
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