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Dispensing Protective Adhesive for Mobile Phone Battery Control Boards: Precise In-Line Coating System

Ι. Why is Protective Adhesive Indispensable for Mobile Phone Battery Control Boards?

Mobile phone battery protection boards typically consist of ICs, MOSFETs, resistors, capacitors, and FPCs. Within the confined space of a mobile phone, the battery protection board faces three major threats:

Moisture and Salt Spray Corrosion:  Sweat or accidental water ingress causes electrochemical migration, leading to short circuits.

Vibration and Drop Stress:  Solder joints and components develop micro-cracks over long-term use.

Conductive Foreign Matter: Tiny metal particles from manufacturing or use can bridge circuits.

Protective adhesive ( conformal coating System  or underfill dispensing system ) forms an insulating protective layer on the component surface, effectively isolating moisture and buffering stress, reducing PCM failure rates by over 90%.

NEPCON Thailand 2026 – Experience Second Intelligent SEC-S3030-C Potting Machine

Don’t miss Southeast Asia’s top 2026 electronics manufacturing event! Second Intelligent invites manufacturers, purchasing managers and process engineers from automotive electronics, new energy power supplies, PCBs, smart home appliances and water purification component industries to NEPCON Thailand 2026  in Bangkok. Visit our booth to explore high-performance fluid automation solutions for cost reduction, quality improvement and productivity growth.

Fueled by Thailand 4.0 strategy and RCEP advantages, Southeast Asia’s smart manufacturing industry grows rapidly. Traditional manual potting suffers from low precision, heavy material waste, low yield and poor productivity, hindering factory automation upgrades. With 24 years of local influence, NEPCON Thailand 2026 gathers 710 global manufacturers across 35,000 ㎡, attracting 60,000 ASEAN professional visitors. It serves as a premium platform for equipment sourcing, business cooperation and production line optimization.

From June 17 to 20, 2026 , Second Intelligent will make its fourth consecutive appearance at Bangkok BITEC Exhibition Centre, co-exhibiting with trusted local partner Long Shine. We welcome new and existing clients to Booth 0D19 (36㎡ Custom Stand)  for on-site machine experience, free custom production line solutions, sample testing and in-depth cooperation talks.

How Vacuum Potting Improves Reliability of EV Battery Disconnect Units

Nowadays, electric vehicles (EVs) are being increasingly adopted worldwide due to their advantages in energy efficiency, environmental sustainability, and carbon emission reduction. As EV technologies continue to evolve toward higher power density and higher voltage architectures, increasing attention is being paid to the reliability and safety of critical electrical components within battery systems.

Among these components, the Battery Disconnect Unit (BDU) is recognized as one of the most important high-voltage safety modules within an electric vehicle. Functions such as power distribution, circuit isolation, current monitoring, and fault protection are performed through this subsystem. Since BDUs are continuously subjected to electrical loading, thermal cycling, vibration, and environmental exposure throughout their service life, stringent requirements are imposed on insulation performance, structural integrity, and long-term reliability.

Figure 1. Typical Battery Disconnect Unit (BDU) architecture used in EV battery systems. Reliability Challenges in BDU Manufacturing I.Air Entrapment and Internal Voids

Desktop vision dispensing machines paired with pneumatic jet valves are a mature and feasible solution for encapsulating mobile phone button pins, widely used in the industry. This combination is particularly suitable for the precision encapsulation of button pins on FPC flexible circuit boards, effectively preventing solder joint oxidation and providing reinforcement.

I. Why choose a jet valve?

Compared to traditional needle dispensing, pneumatic jet valves offer several core advantages in FPC button encapsulation applications:

● Non-contact dispensing: The jet valve delivers adhesive droplets to the target location via high-speed jetting, eliminating the need for Z-axis vertical movement. This perfectly solves the problem of FPC flexible circuit boards being easily deformed or displaced by external forces, and avoids damage caused by needle collisions.

● High speed and high precision: The dispensing speed of the pneumatic jet valve can reach up to 250 dots/second, which is 3-7 times faster than traditional dispensing methods. Meanwhile, its minimum glue dot diameter can be controlled to around 0.2mm, and the glue volume control accuracy can reach ±0.01mg, which can ensure consistent and precise encapsulation on tiny button pins without glue overflow or contamination.

From Industrial Robotic Arms to AI Intelligent Manufacturing: Reflections on the Future of Automation by Second Intelligent

1. Global manufacturing is entering a new era of “AI + Robotics” Over the past few decades, the development of global manufacturing has essentially gone through three stages:

2. Development Background of Robotic Arms – The Core Execution Platform for Industrial Automation The development of robotic arms originated from industrial automation needs. In the 1960s, the first generation of industrial robots entered the automotive manufacturing industry, primarily used for: handling, welding, painting, and high-temperature hazardous operations. Subsequently, industrial powers like Japan, Europe, and the USA promoted the rapid industrialization of industrial robots.

3. Why is manufacturing increasingly reliant on robotic arms? Because modern industry demands higher standards for production: higher precision, higher efficiency, higher consistency, lower reliance on labor, and more stable yield rates.

6. Second Intelligent’s Current Development Directions for Robotic Arm Applications Currently, Second Intelligent has widely applied robotic arms in:

1. Six-Axis Robotic Arm Dispensing System

Suitable for: 3D spatial dispensing, curved surface products, automotive electronics, new energy products. Enables: Multi-angle dispensing, complex trajectories, spatial obstacle avoidance, high-flexibility production.

Thermal conductive gel aids in the precision dispensing of electronic component caps?

Automatic In-line PCB Glue Dispensing Machine SEC-DH400L

Second Intelligent In-line Automated Glue Dispensing Machine SEC-DH400L adopts an integrated mineral casting design, with ultra-high precision and super stability, powerful expansion capabilities, and can realize ion cleaning, dispensing, detection, UV exposure and other functions; Adopting a gantry structure, it can bear large loads, stable structure, and a powerful CCD visual positioning system, which can meet the requirements of Mark point positioning, edge positioning, and 3D scanning positioning; strong scalability, and can expand AOI detection 3D detection, UV exposure curing and other functions; Strong platform compatibility, contact and non-contact dispensing, single-head and multi-head synchronous dispensing, automatic compensation and adjustment of double-head spacing, five-axis dispensing function based on needle A/R displacement, etc.

Second Intelligent has played an important role in theresearch, development, manufacturing, pre-sales and after-sales services of fluid dispensing robot, potting and coating solutions which range from various types of automatic fluid dispensing, potting, two-component potting machines and coating machines with desktop, free-standing, inline or cobot combined systems, and widely used in global electrical, electronics, home appliances, automobile, telecom, pharmaceutical, automotive electronics, semiconductor, aerospace, LED and more.

High-Precision Fluid Dispensing Solutions Empowering Sealing 

In industries including electronics manufacturing, new energy and automotive manufacturing, RTV silicone (Room Temperature Vulcanizing silicone) is widely used in component fixing, waterproof sealing, thermal conductive filling and other processes due to its excellent adhesion, sealing, insulation and high- and low- temperature resistance. With more than 20 years of deep cultivation in the fluid dispensing field, Second Intelligent has launched a benchtop RTV dispensing system. With core advantages of high precision, high stability and strong compatibility, it has become the preferred equipment for dispensing RTV silicone and thermal gel, helping enterprises achieve automated and efficient production.

(1) Industry Pain Points: Core Challenges in RTV Dispensing Processes

RTV silicone generally has a viscosity of 60,000–100,000 cps, and some processes require matching thermal gel (such as models with a high thermal conductivity of 4.5 W/m·K). Traditional dispensing equipment often suffers from the following drawbacks:

2. Dual Mode Adhesive Supply System for Full-Scenario RTV / Thermal Gel Applications Targeting mainstream packaging formats including 2600 ml RTV silicone cartridges and 150 cc thermal gel syringes, It accommodates adhesives with viscosity ranging from 1,000 to 200,000 cps, covering various fluids such as RTV silicone, thermal gel, epoxy adhesive and UV adhesive dispensing machine .

Shenzhen Second Intelligent Equipment Co., Ltd., founded in 2006, is a leading fluid dispensing systems solution provider in China. It has more than 400 employees, a production base of over 30,000 ㎡, and more than 300 core technology patents. Its products are sold to over 50 countries worldwide, serving more than 5,000 customers including OPPO, Huawei, BYD and CATL.

UV Dispensing Machine Solution for PCB Manufacturing

As industries such as consumer electronics, automotive electronics, LED, and new energy continue to develop rapidly, manufacturers are demanding higher precision, better consistency, and faster production efficiency for PCB dispensing processes. Traditional manual dispensing can no longer meet the requirements of modern automated production lines.

In this article, we will use the SEC-DH400L Inline Dispensing Solution from Second Intelligent as an example to explain how modern inline dispensing equipment helps manufacturers improve production efficiency, dispensing accuracy, and product quality.

Overview of the application fields of fully automatic coating machine production line, The fully automatic coating machine production line is a kind of efficient and precise automatic coating equipment, which is widely used in many industries such as electronics, automobiles, medical treatment, and new energy. It realizes high-precision and high-consistency coating operations through computer control, greatly improving production efficiency and product yield. The following is a detailed introduction to its main application fields.

1. Electronic manufacturing industry

(1) PCB (printed circuit board) coating

The fully automatic coating machine is used for three-proof paint (moisture-proof, anti-corrosion, and dust-proof) spraying in PCB manufacturing to protect the circuit board from environmental erosion and improve the reliability of electronic products.

Fully automatic Conformal coating machine line

Some high-end cars use automated coating processes to accurately apply anti-corrosion coatings and sealants (such as windshield glue) to improve the durability of the car body.

How can desktop dispensing robot help companies improve dispensing productivity? Practical cases tell you the answer

In today's competitive business environment, the productivity of an enterprise often determines its market competitiveness. For enterprises involved in the dispensing process, desktop glue dispensing machines, as a kind of advanced dispensing equipment, are gradually becoming a powerful assistant to improve production efficiency.

In this article, we will discuss in depth how desktop glue dispensing machines can help enterprises improve the productivity of dispensing through practical cases.

Desktop glue dispensing machine robot

Desktop glue dispensing machine robot SEC-E480SV with CCD visual   

Second Intelligent Desktop Glue Dispensing Machine SEC-E480SV adopts high-precision servo motor + grinding ball screw, which can ensure accuracy while having higher cost performance. It is also equipped with CCD visual height measurement, which makes programming more efficient and more accurate. It is an aviation aluminum alloy die-casting one-piece design desktop glue dispensing machine, which is more solid, more stable, with double rotating stations, small and flexible.

1.desktop glue dispening machine features and advantages

desktop dispensing robot, compared with the traditional large dispensing equipment, has a compact size, easy to operate, high flexibility. It can be easily placed on the workbench, does not take up too much production space, suitable for enterprises of all sizes. At the same time, the desktop machine is usually equipped with advanced control system and high-precision dispensing head, which can achieve precise glue volume control and fast production speed, thus greatly improving the quality and efficiency of dispensing.

Why Use a Hot Melt Adhesive Supply System?

In plastic extrusion processes, the purpose of using a hot melt adhesive supply system is not simply “to dispense adhesive.”

The real objective is to achieve a continuous, stable, and controllable inline bonding process.

Especially in extrusion applications, which are continuous manufacturing processes, manual adhesive application or simple pressure-fed dispensing systems are usually unable to meet process requirements.

1. Why Is Hot Melt Adhesive Especially Suitable for Extrusion Processes? Extrusion itself is a continuous production process. Typical products include:

● Plastic profiles ● Sealing strips ● Films ● Tubes and pipes

 What the Customer Is Really Purchasing Is Not Simply a “Dispensing Machine” The customer is actually investing in: Continuous Manufacturing Capability Therefore, the real concerns behind customer requirements

How to apply Two-component servo adhesive dispensing to the heat sink of an electrical appliance?

Using a desktop dispensing machine with two-component servo adhesive dispensing technology for heat sinks in electrical appliances is an advanced process solution that significantly improves dispensing accuracy, production consistency, and adhesive utilization.

I. Core Process Flow

The core of this solution is the use of a servo motor-driven dispensing mechanism to replace the traditional pneumatic method, independently and precisely extruding and pushing the two components of adhesive, A and B. Subsequently, the adhesive is thoroughly mixed in a static mixing tube and finally precisely coated onto the heat sink.

Application Advantages at a Glance

Compared to traditional manual or semi-automatic methods, this solution offers significant advantages:

●High Precision and Consistency: Servo-controlled dispensing accuracy far surpasses that of traditional pneumatic methods, ensuring consistent product quality.

●High Efficiency: Automated operation can run continuously for 24 hours, and combined with high-speed motion control, it significantly increases output per unit time.

●Adhesive Savings: Precise dispensing control avoids over-coating and waste, reducing material costs.

●Easy Operation: The desktop dispensing machine features intuitive programming, quick line changes, and flexible adaptation to multi-variety production.

Thermal conductive gel application case: How does the dispensing equipment apply adhesive to the heat sink?

In automated production, the key to applying thermal grease to heat sinks using dispensing equipment lies in the precise control of the amount of grease, the application path and the equipment parameters. This typically involves three main stages: preparation, dispensing and pressing.

● Fixing the Heat Sink: First, the heat sink base needs to be fixed to the dispensing machine’s work platform using a clamp for precise positioning to prevent displacement during dispensing.

● Connecting the Dispensing System: The dispensing of thermally conductive gel is usually packaged in 30cc, 55cc syringes, or drum larger containers, and directly connected to the dispensing machine’s dispensing system.

What are the applications of intelligent glue potting production line in the home appliance industry?

What are the applications of intelligent glue potting production line in the home appliance industry?

The intelligent glue potting production line is widely used in the home appliance industry. It mainly improves the sealing, shock resistance, thermal conductivity and structural strength of home appliances through automated, high-precision glue (such as sealant, thermal conductive glue, structural glue, etc.) dispensing and filling processes. The following are specific application scenarios and advantages:

1.Waterproof sealing treatment

Applied products: washing machines, dishwashers, water heaters, air conditioner outdoor units, etc.

Vacuum potting technology

Inline vacuum potting machine: For example, the SEC-S400-ZL/ZHL ensures no air bubbles remain in the adhesive during potting through rapid vacuum extraction and high sealing performance, reducing leakage caused by bubble

Core competitive advantages of second intelligent in the dispensing and potting industry

The core advantages of Second Intelligent lie in its high precision fluid control, robust proprietary technology barriers, mature industry solutions, and outstanding production line integration capabilities. The company has established differentiated competitiveness particularly in dispensing, potting, and lithium/hydrogen battery equipment. Overseas, Second Intelligent serves global enterprise customers with exceptional cost-performance ratios and technical quality.

2.Core Technology and Component R&D Strengths

Fully Independent R&D: Core software, motion control systems, valve bodies, and critical components are self-developed, backed by over 300 patents and 20+ software copyrights.

Vision & Intelligent Positioning

CCD vision & 3D vision systems enable automatic alignment correction, eliminating workpiece offset/deformation effects.

Highly automated measurement correction adapts to warped PCBs/irregular components with Z-axis adaptive adjustment.

Leading Specialized Processes

（1）China’s first manufacturer offering non-standard path conductive adhesive dispensing machine (rotating nozzle for complex trajectories).

（2）Mature integrated solutions for dual-component automatic mixing, vacuum injection, piezoelectric jetting, and UV curing.

（3）Deep expertise in lithium-ion and hydrogen battery production lines, integrating fluid equipment, production line assembly, and MES systems—unmatched in new energy applications.

How to achieve highly reliable adhesive bonding of camera module lenses? — Needle dispensing application analysis?

In the wave of modern electronic devices moving towards “higher pixels and smaller size,” the assembly process of camera modules faces extreme challenges. As the “eyes” of the module, the lens’s fixing precision directly determines image quality.

Among various fixing methods, adhesive dispensing machine has become the mainstream choice due to its suitability for irregular shapes, low stress, and ability to provide sealing protection. However, achieving highly reliable and contamination-free bonding through needle dispensing within a microscope-level operating space is a challenge facing every process engineer.

This article will delve into the key technical aspects of needle dispensing in camera module lens bonding.

Ι.Pain Points in a Microscopic Environment: Why Does Lens Dispensing Fail Easily?

In the assembly of camera modules (especially mobile phone cameras), lenses need to be precisely fixed within the lens barrel. This operating space is often only a few millimeters wide and requires extremely high cleanliness. Traditional dispensing processes often face the following three fatal flaws:

Achieving highly reliable dispensing and bonding of camera module lenses is a system engineering project. It’s not just about buying an expensive dispensing machine; it requires a three-pronged approach: ” precision needle (hardware) ” + ” intelligent algorithm (control) ” + ” structural optimization (design) “.

Second Intelligent SEC-1000D Customized Floor-Standing Dispensing Solution | Double-Sided Precision Dispensing for PCBA

In the core fields of SMT electronic manufacturing and PCBA precision assembly, key processes such as component, waterproof sealing, and solder joint protection directly determine the reliability, stability and mass production yield of end products, which are also the core demands of Fortune Global 500 end customers for production line upgrading  . accurately matches the personalized production needs of Fortune Global 500 end customers, and helps them realize the intelligent upgrading and high-quality development of production lines.

The SEC-1000D floor-standing automatic dispensing solution launched this time is the core product developed by Second Intelligent for high-end customized demands in the SMT field. Focusing on the double-sided root dispensing scenario of long-strip PCBA, combined with the strict standards of Fortune Global 500 end customers, it integrates an integrated customized design of visual positioning, dual-axis rotation, automatic flipping and large-capacity glue supply, realizing high-precision, high-stability and high-efficiency automatic dispensing operations, and fully meet the dual requirements of quality, efficiency and personalized configuration for high-end SMT electronic manufacturing.

(4)Customized 2600ml Large-Capacity Glue Supply System: Less Glue Replacement, High Continuity, Adapted to Bulk Glue The glue supply system is exclusively customized for the customer’s 2600ml bulk RTV silicone dispensing Machine , with a seamless steel pipe tank body, higher pressure resistance and stable glue supply, avoiding dispensing accuracy deviation caused by unstable glue supply;