Designed for maximum compatibility, precision operations, and longevity in harsh industrial, automotive, and telecom environments across Sweden.
Sweden stands at the absolute vanguard of the global green industrial revolution and digital transformation. Renowned for its stringent quality benchmarks, pioneering telecom advancements (such as Ericsson), robust automotive architectures (Volvo and Scania), and expanding energy grid infrastructures, Swedish industries leave zero room for hardware failures. In electronic systems designed for these extreme-demand environments, the choice of printed circuit board (PCB) substrates is a critical reliability vector. Standard FR-4 materials fall short when subjected to thermal stress, severe climate oscillations, and high power densities. This is where High-TG (Glass Transition Temperature) PCBs become indispensable.
A High-TG PCB, typically featuring a Tg value exceeding 170°C, maintains its structural integrity, mechanical strength, and electrical insulation properties under severe thermal strain. For Swedish innovators building automated smart-grid stations in Norrland, high-power EV charging networks in Gothenburg, or complex telecommunication towers in Kista, these thermal properties ensure operational survival. High-TG materials mitigate common micro-level failures such as pad lifting, resin recession, layer delamination, and Z-axis thermal expansion mismatch during lead-free reflow cycles.
Withstands sustained operation in temperatures up to 170°C - 180°C without mechanical degradation or loss of structural stiffness.
Significantly reduces Z-axis expansion during multi-layer lamination and thermal cycling, preserving microvia reliability.
Optimized for humid sub-zero conditions and chemical exposures typical in Northern European heavy industries.
Designed to survive the intensive thermal profiles required by SAC305 and other ecological lead-free solder pastes.
As a leading hardware ecosystem partner, Velmix Technology Co., Ltd. bridge the gap between heavy component manufacturing and the complex, high-reliability requirements of Nordic businesses. While our production origins lie in robust, highly resilient DRAM solutions and embedded motherboards, our advanced PCB design and outsourcing integration departments supply high-performance multi-layer High-TG FR4 and high-frequency hybrid boards (Shengyi, Rogers, and Megtron grades) tailored specifically for demanding industrial footprints.
The global push towards electrification, distributed cloud computing, and autonomous AI systems has caused a massive surge in demand for thermal-resilient circuit boards. Traditional TG130 and TG140 boards are systematically being phased out in high-reliability applications. Globally, the electronic components market is shifting towards halogen-free, ultra-low-loss, and high-thermal-stability substrates. Swedish firms are leading this charge, especially in the development of electric drivetrains, marine electrification, and mission-critical defense hardware.
Velmix Technology integrates Shengyi FR4 (including Tg170 and Tg180 variants) and high-frequency Rogers mixed-pressure technologies. This provides Swedish engineering teams with an unmatched "information gain" in materials selection. The table below represents a core technical comparison of common materials utilized in our manufacturing processes to meet Swedish and international aerospace, telecom, and industrial standards:
| Substrate / Parameter | Standard FR-4 (Tg130-140) | Shengyi High-TG (Tg170-180) | Rogers RO4350B / Shengyi Hybrid | Megtron 6 / High-Speed low-loss |
|---|---|---|---|---|
| Glass Transition Temp (Tg) | 130°C - 140°C | 170°C - 180°C | 280°C (Rogers) / 170°C (FR4) | 200°C | Z-Axis CTE (ppm/°C) | 55 - 65 | 40 - 45 (Highly stable) | 30 - 35 (Ultra-low mismatch) | 45 |
| T260 / T288 Delamination Time | < 10 min | > 30 min / > 15 min | Non-melting, structural ceramic | > 30 min |
| Thermal Conductivity (W/m•K) | 0.25 | 0.40 - 0.45 | 0.62 - 0.8 | 0.43 |
| Dielectric Loss (Df @ 10GHz) | 0.020 | 0.015 | 0.0037 (Excellent) | 0.002 |
We deploy macro-level structural engineering to tackle high power densities. By combining thick copper foils (up to 4oz or higher) with High-TG prepregs, we construct multilayer configurations that efficiently spread heat laterally from surface-mount power devices down through thermal vias. Additionally, in high-frequency applications like automotive radar systems or base station transceivers, we provide Rogers and Shengyi mixed-pressure multi-layer stack-ups. This ensures signal integrity for the RF layers while using cost-effective, high-reliability High-TG FR4 for the control and power supply layers.
Swedish technical standards demand absolute resilience against both sub-zero winters and the intense internal heat generated by modern heavy machinery. Velmix Technology customizes and distributes PCB systems designed for several prominent Swedish industrial sectors:
Whether for electric truck drivetrains, battery management systems (BMS), or fast-charging infrastructure, circuit boards must operate continuously under thermal cycles ranging from -40°C to +125°C. High-TG PCBs prevent structural fracturing of solder joints and internal delamination caused by CTE mismatch during fast charging phases and heavy load acceleration.
Sweden is a world leader in telecommunication hardware. The integration of 5G, micro-base stations, and edge computing nodes demands low-loss, high-thermal-capacity motherboards. By combining high-speed memory systems, advanced cooling designs, and high-TG multi-layer boards, Velmix ensures continuous data throughput in compact, fanless outdoor enclosures.
In power electronics for wind turbines, solar inverters, and utility-scale energy storage systems, reliability is paramount. The PCBs in these systems must withstand high voltages, high frequencies, and elevated operating temperatures. High-TG materials ensure long-term insulation resistance (CAF resistance) under electrical and thermal stress.
Swedish companies operate under strict environmental and hazardous waste directives. All High-TG PCBs, memory modules, and motherboards exported by Velmix Technology strictly conform to EU RoHS and REACH regulations. Our production lines use green, halogen-free raw materials, ensuring that our products are fully compliant with Swedish chemical legislation and WEEE collection schemes.
Velmix Technology Co., Ltd. is a professional hardware and electronics manufacturer based in Shenzhen, China, specializing in the research, development, production, and global distribution of high-performance DRAM memory solutions, multi-layer industrial PCBs, cooling solutions, and specialized motherboard platforms. Since our establishment in 2017, we have committed ourselves to delivering reliable, high-speed hardware products for consumer electronics, industrial applications, gaming systems, servers, and embedded computing.
Operating from a modern manufacturing facility covering 368㎡, we combine advanced production technologies with strict quality management to ensure every component meets international performance and reliability standards. Our experienced engineering team continuously develops innovative thermal and memory designs to meet the evolving demands of AI computing, edge devices, cloud infrastructure, and next-generation computing platforms.
Today, Velmix serves customers in more than 40 countries and regions, offering flexible OEM and ODM manufacturing services for global brands, distributors, system integrators, and industrial equipment manufacturers. By focusing on product consistency, fast delivery, and technical innovation, we have built long-term partnerships across Europe, particularly with Swedish enterprises seeking reliable hardware foundations.
| Item | Information |
|---|---|
| Company Name | Velmix Technology Co., Ltd. |
| Established | 2017 |
| Facility Area | 368㎡ |
| Annual Export Revenue | USD 18.6 Million |
| Export Experience | 8 Years |
| Industry Experience | 15 Years |
| Quality Control | 100% Full Inspection Before Shipment |
| Product Inspection Methods | Signal Integrity Test, Burn-in Test, Compatibility Test, Functional Test & Random Sampling |
| QC Staff | 56 Employees |
| Business Type | Manufacturer & Exporter |
| Main Markets | North America, Europe, Southeast Asia, Middle East & South America |
| Supply Chain Partners | 986+ |
| Main Customer Types | Brand Owners, OEM Manufacturers, System Integrators, Distributors & Wholesalers |
| R&D Capability | Independent Product Design, PCB Development & Firmware Optimization |
| Customization Options | OEM, ODM, Private Label, Customized Capacity, Heat Spreader, PCB Color & Packaging |
| New Products Launched Last Year | 138 Models |
| R&D Engineers | 84 Engineers |
As electronic systems grow more compact and power-dense, the limits of standard FR4 substrates are continually being pushed. Our technical roadmap focuses on the development of ultra-high-TG materials (Tg200+) and low-loss substrates to meet the demands of 6G communication and autonomous driving AI chips. We are actively researching green, bio-based resin systems and halogen-free formulations to align with Sweden’s vision for a circular, carbon-neutral economy. Furthermore, by integrating advanced embedded passive technologies directly into the internal layers of our High-TG multi-layers, we help developers reduce component footprints while improving signal integrity and thermal efficiency.
Full integration of memory components, multi-layer PCBs, motherboards, and server-grade cooling systems built for Sweden's extreme operating requirements.
Our production facilities employ international state-of-the-art SMT lines, advanced reflow ovens, and precise testing chambers. This enables us to maintain tight tolerance metrics and guarantee high-reliability and low thermal-expansion rates across our memory modules and PCB solutions.
Connect with our expert team of PCB layout designers and product specialists. We provide free engineering reviews, stack-up analysis, and quick prototype quotes tailored to the specific needs of your business in Sweden.
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