Summary
- DELO-DOT RE offers repeatability and control of higher-end systems
- Enabled by compressed air, the pneumatic retraction valve prevents dripping
- Dispenses adhesive droplets as small as 0.09 µl
- Can be easily integrated into most production lines
- Actuators hermetically separated from the dispenser’s fluid system, allowing for tool-free assembly and disassembly
Article
DELO Industrial Adhesives has introduced a new retraction valve, DELO-DOT RE, to its range of adhesive dispensing systems. This pneumatic retraction valve offers the repeatability and control similar to higher-end systems like jetting or volumetric needle dispensing, while still maintaining the simplicity of direct dispensing from cartridges. Enabled by compressed air, the valve features properties that support a high level of precision and repeatability, ensuring a quality bond. Its retraction mechanism allows for heightened control and prevents dripping by creating a vacuum effect to curtail adhesive flow after dispensing.
The DELO-DOT RE valve is capable of dispensing adhesive droplets as small as 0.09 µl, which is smaller than applying adhesive directly from cartridges. With a standard deviation of less than 3%, the valve is able to achieve consistent dispensing results, comparable to higher-end jet valves. Despite its capabilities, the valve is compact in size, measuring 33 x 25 x 112 mm, making it suitable for integration into most production lines with minimal impact on existing systems.
The actuator components of the valve are hermetically separated from the dispenser’s fluid system, enabling easy tool-free assembly and disassembly. Cartridge replacement is also straightforward with spring-loaded reinforcement clips located on the actuator component. Unlike volumetric valves, any part of the DELO-DOT RE valve that comes into contact with fluid is fully encapsulated and can be easily replaced, providing added convenience for users.
The versatility of the DELO-DOT RE valve makes it suitable for a wide range of applications. In industries such as semiconductor potting and active alignment processes for cameras, where dispensing directly from cartridges is preferred, the retraction valve offers a solution that eliminates dripping or bubbling, leading to increased yields. For semiconductor lid attachment, the valve’s retraction mechanism provides the necessary control for maintaining bondline thickness continuity, ensuring consistent and reliable results in the manufacturing process.
DELO Industrial Adhesives highlights that the DELO-DOT RE valve can be integrated into various production processes due to its unique features and benefits. By combining precision, repeatability, and simplicity, the valve offers a versatile solution for adhesive dispensing applications across different industries. With its compact size, ease of use, and high level of control, the DELO-DOT RE valve provides an efficient and reliable option for manufacturers seeking to enhance their bonding processes and improve productivity.
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