In production, the use of ultrasonic cleaning machines for precision optical devices such as MT-FA and FA is to meet their extremely strict cleanliness requirements.

Ultra-high cleanliness requirements: If the surface of optical components is contaminated with oil, dust, fingerprints, etc., which are tiny impurities, it will directly affect the key performance such as light transmission and reflection, resulting in a decline in product performance or even product scrapping.

Effective removal of contaminants: Ultrasonic cleaning utilizes the impact force generated by the rupture of bubbles in the liquid (cavitation effect) to clean the surface. It can effectively remove contaminants, and is particularly adept at cleaning precision parts with structures such as blind holes and grooves.

Precision assembly process requirements: The production of MT-FA components involves complex processes such as cutting, V-slotting, and gluing. Cleaning steps are incorporated throughout the process, for example, removing residual processing debris or oil from the surface of the components.

Improving yield and reliability: In high-end applications such as MT-FA, alcohol ultrasonic experiments are the key method for verifying the quality of tail adhesive bonding. The results of these experiments directly affect the long-term reliability of the product. Therefore, the ultrasonic cleaning solution is used to address yield issues and provide support for optimizing production capacity.

The VGT-903FTA automatic intelligent ultrasonic cleaning machine by WIGUITE is precisely a key device designed specifically for precision optical components like MT-FA. It can effectively solve the yield problems in production and meet a series of core requirements such as cleaning consistency, cleanliness, and traceability.

The series of solutions provided by Weigute Ultrasonic Factory for the production of MT-FA and optical components have been highly recognized in the industry. This can be clearly seen from the continuous increase in orders from its core customers.

Let me break down the technical advantages and core specifications of this device for you:

Equipment Overview:

VGT-903FTA is an automatic intelligent ultrasonic cleaning machine. The equipment has 8 functional slots and a tunnel-type drying system. It is equipped with a circulating filtration system, an automatic temperature control system, a touch screen system, a vibration system, an ultrasonic cleaning system, a preheating box system, a liquid storage box system, an automatic loading and unloading system, and a tunnel-type drying system. The equipment adopts functions such as water-soluble detergent washing, pure water rinsing, IPA dehydration, and tunnel-type drying, making it an environmentally friendly cleaning machine.

Equipment Advantages:

Highly efficient and precise cleaning technology: Compared to traditional cleaning methods, the single-machine cycle time can be flexibly adjusted within 3 to 18 minutes. It can seamlessly integrate into automated production lines, perfectly resolving the contradiction between production capacity and quality, and achieving efficient and batch-oriented precise cleaning.

Zero contact throughout the process, eliminating human-related risks: For optical components like MT-FA, any minor scratches or residues could lead to product scrapping. This equipment achieves a fully automated process of "cleaning → rinsing → drying" through automatic mechanical arms or conveyor belts. Throughout the process, there is no direct human contact with the workpieces, which not only ensures a highly consistent cleanliness of each batch of products but also eliminates the risk of bumps caused by manual operations at the source.

High-frequency non-destructive cleaning: This equipment employs high-frequency ultrasonic technology (with a frequency range of 40-80 kHz), based on the "cavitation effect" principle. The micrometer-sized bubbles generated at high frequencies can penetrate the V-shaped grooves, chips, and other micro-structured components of MT-FA, removing nano-sized contaminants such as oil and dust. Moreover, due to its softer high-frequency energy, it does not damage the precise glass or coated surfaces, meeting the requirements of "non-destructive cleaning" for optical grade applications.

Equipment technical configuration:

1. Core hardware | The cornerstone for precise execution

Fully automatic mechanical arm transfer system: The core of the equipment is the fully automatic mechanical arm or conveyor belt, which ensures that the workpieces operate automatically throughout the entire process of "loading → cleaning → rinsing → drying → unloading". This fundamentally eliminates the problems of low efficiency, collision risks, and inconsistent cleaning effects caused by manual handling.

High-density functional slots and closed-loop system: The equipment designed for optical components has approximately 7 to 16 functional slots.

The VGT-903FTA automatic intelligent ultrasonic cleaning machine series integrates a core system:

Multi-stage cycle filtration system: Usually consisting of 4-5 stages of filtration (such as a 20μm initial filter screen, a 5μm ceramic filter element, a 1μm polymer filter membrane, and an activated carbon adsorption layer), ensuring that the cleaning solution maintains extremely high purity as it circulates in the tank, preventing re-contamination of precision parts by the stripped contaminants.

Intelligent Temperature Control System: Precisely controls the temperature of the cleaning solution (accurate to ±0.5°C), providing the optimal chemical environment for removing stubborn grease, fingerprints and other specific contaminants, maximizing cleaning efficiency.

Multi-mode Drying System: The drying process usually adopts a combination of slow pull dehydration and hot air drying. Some high-end models also use "hot air drying system (hundred-level FFU)" and vacuum drying. The former ensures the extremely high cleanliness of the drying gas itself, while the latter can handle complex deep holes and narrow slots, and solve the problem of drying dead corners.

Industrial control hardware:

Ultrasonic system: Depending on the product sensitivity, the high-frequency frequency range is typically 40-80 kHz. For precision optical components that require extreme protection, a three-frequency adjustable generator (such as 28 kHz/68 kHz/132 kHz) can be used to achieve three-stage operations of powerful cleaning, fine gap cleaning, and nano-level removal.

Human-machine interaction and interfaces: Equipped with a ≥7-inch industrial-grade touch screen and PCL control system, it supports multi-segment programmed cleaning processes. Users can customize cleaning parameters according to product characteristics (material, size, contamination level).

Swinging cleaning device: The robotic arm moves the workpiece up and down rhythmically in the trough. This continuously washes the surface of the workpiece, breaks the boundary layer, enables the ultrasonic wave to act more effectively, and removes the detached dirt, preventing it from reattaching.

2. Technological Innovation | Manifestation of Intelligence

Precise frequency control and stable power output: This is one of WIGOT's core patented technologies. The DSP control system can achieve high-precision frequency output (such as 48kHz ± 5%), and through the TFPM pulse modulation technology, it automatically matches the medium impedance to ensure that the energy conversion efficiency of the transducer array remains above 96%. This guarantees that the cleaning effect of each batch is highly consistent.

Customized intelligent fixture system: Made of corrosion-resistant PEEK or Teflon materials, it achieves rapid adaptation through modular design. The fixture positioning accuracy can reach ±0.01mm, ensuring no damage while providing mechanical support for cleaning and drying effects.

"Flexible power supply and sensor management":

Generator and transducer: Utilizing a digital generator with an efficiency of up to 95%, the ultrasonic power can be finely adjusted within the range of 0 - 100% to prevent damage to the coating due to excessive power.

Sensor network: Through multiple sensors such as liquid level and temperature, combined with an anti-static treated stainless steel housing (Ra ≤ 0.1μm), it can monitor the equipment status in real time, ensuring process stability and operational safety.

3. Process Parameters | Key Technical Specifications

Operating Frequency: 40kHz - 120kHz (The commonly used high-frequency range of 80-120kHz is employed for optical devices).

Ultrasound power: 50W - 300W (adjustable), power density can be customized.

Washing cycle: 3 - 18 minutes per basket (adjustable), can be matched with different production cycles.

Control accuracy: The temperature control accuracy is ±0.5°C; the positioning accuracy of the mechanical hand is ±0.1mm.

Filter accuracy: Four-stage filtration, with the end-point accuracy reaching 1μm or lower.

Why are these configurations so crucial for MT-FA/FA?

Ensuring precise geometric dimensions: The micron-level precision coupling requires that any residue (such as the polishing paste remaining in the V-slot) would compromise the dimensional accuracy. The multi-stage filtration system and high-frequency ultrasonic waves ensure that there are no residual particles after cleaning.

Achieving "lossless" cleaning: The optical surface of the high-precision coating is extremely fragile. The combination of high-frequency, finely adjustable ultrasonic power and a soft PEEK fixture ensures that during the powerful cleaning process, there will be no impact, scratching or damage to the optical surface.

Achieve absolute cleanliness with "no water stains": The hot air drying and slow pull dehydration system under a hundred-level FFU ensures a completely enclosed process from cleaning to drying. The final product surface has no water stains and can directly proceed to the next packaging process.

Meet the ultra-clean environment standards: The equipment can operate in a Class 100 (100-level) or higher-level cleanroom environment, meeting the strict production environment standards required by the optical communication industry.

Achieve 100% process traceability: The parameters of each cleaning (temperature, power, time, cleaning solution status, etc.) will be recorded, forming a complete production data chain, providing a solid foundation for quality traceability.