Waterproof sealing in 30 seconds! Miniaturization and high durability of outdoor power equipment electronic units.
Waterproof and compact electrical components for outdoor power equipment/electric tools! Protect electrical components from rain, dust, and vibration! High-reliability hot melt molding.
Electronic units for brush cutters, chainsaws, and power tools are exposed to harsh environments such as rainwater, dust, and vibration. Hot melt molding achieves high waterproofing, vibration resistance, and miniaturization by directly sealing the electronic units. Additionally, it reduces the need for potting processes and waterproof cases, contributing to lower manufacturing costs. **Points of Hot Melt Molding:** 1. **High Reliability** Hot melt molding sealing has over 20 years of proven use in waterproof and dustproof applications for automotive and aircraft parts, boasting high reliability. 2. **Gentle Low-Pressure Molding for Electronic Components** Molding is done at extremely low pressures of 0.3 to 5 MPa, preventing damage to the sealed electronic components. 3. **Excellent Productivity** Sealing is completed in one shot within seconds, allowing for significant "tact time reduction" compared to potting. 4. **Miniaturization and Lightweight Products** Molding can be done in shapes that conform to the contours of the components without the need for housing, enabling "miniaturization and lightweight design." 5. **Environmentally Friendly** The hot melt products we handle are primarily made from plant-based fatty acid materials derived from grains.
basic information
○ Do you have any of the following concerns? - I want to prevent circuit board failures due to rainwater or condensation. - I am troubled by cable disconnections or parts falling off due to vibrations from engines or motors. - I have many components such as waterproof cases and gaskets, and I want to reduce costs. - The curing time in the potting process is long, and improving productivity is a challenge. - I want to promote the miniaturization and lightweight design of components. etc. Hot melt molding is an effective sealing and protection method for solving these issues. ○ Examples of achievable performance Waterproof and dustproof achievements: up to IP67,68 Operating temperature: -40 to 150℃ Flame retardancy: UL94 V-0 etc. We provide various environmental resistance features such as waterproofing, dustproofing, insulation, vibration resistance, and explosion protection. At Matsumoto Processing, we select hot melt materials tailored to your product specifications and operating environment, and we handle everything from modeling to prototyping and evaluation. In addition to supporting in-house production such as equipment installation, mold making, optimization of molding conditions, and mass production startup, we also offer contract molding services, providing consistent support from prototyping to mass production. Please feel free to consult with us.
Price range
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Model number/Brand name
Waterproof, dustproof, low-pressure molding, substrate encapsulation, hot melt, LPM, outdoor power equipment, OPE, electric tools, cordless, battery-operated equipment.
Applications/Examples of results
【Adoption Examples】 - Waterproof sealing of electrical components for automotive interior and exterior (control boards, sensors, harnesses, switches, camera modules, etc.) - Waterproof and dustproof sealing of electrical components for FA equipment (control boards, sensors, camera modules, etc.) - Waterproof sealing of electrical components for infrastructure equipment (control boards, sensors, etc.) - Waterproof sealing of control boards for power tools - Waterproof sealing of industrial communication and IoT devices - Waterproof sealing of angle sensors mounted on agricultural and construction machinery - Waterproof sealing of motor stators and related electrical components - Waterproof sealing of various sensors such as current sensors, gas sensors, and temperature sensors (automotive/industrial/consumer) etc. 【For Such Applications】 - Cordless power tools such as electric drills, grinders, and electric wrenches - Outdoor power equipment (OPE) such as lawn mowers, brush cutters, and chainsaws - Generators/battery storage (portable power sources) - BMS boards etc. Recently, we have received numerous inquiries aimed at ensuring waterproof and dustproof properties while also reducing the size and weight of products. For more specific adoption examples or molding samples, please feel free to contact us.
Detailed information
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Examples of waterproof sealing for motor stators
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Example of insulation sealing for industrial robot control boards. The left photo shows before sealing, and the right photo shows after sealing (the black part is the hot melt molding section).
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Example of waterproof sealing for agricultural machinery substrates. The left photo shows before sealing, and the right photo shows after sealing (the black part is the hot melt molded section).
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Examples of waterproof sealing for photo sensors: Sealing of the substrate with amber-colored hot melt and assembly of two substrates.
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Our company provides comprehensive support for the introduction of hot melt molding methods, from initial technical discussions and appropriate hot melt selection to prototype production and evaluation, optimal process considerations for mass production, proposals for optimal equipment or the design and manufacturing of dedicated machines (automated systems), hot melt supply and line support. For customers for whom equipment installation poses a barrier to adopting this method, we even offer production contracting at our facility, ensuring support from "start to finish." **Benefits of Hot Melt Molding** - Improved production efficiency and cost reduction through alternative methods to potting - Greater design flexibility due to mold forming, enabling miniaturization and lightweighting of components - Use of sustainable raw materials derived from natural fatty acids We have various molding machines and displays of adopted products available at our prototype lab in Fuji City, Shizuoka Prefecture. Please feel free to visit, even just for a tour.