
About US
Founded in 2010, SZH is an integrated enterprise specializing in R&D design, project management, supply chain management, and manufacturing. Headquartered in Shenzhen—a hub of innovation in China—the company also operates a technical research institute in Yantai, Shandong, in Northern China. With a team of over 200 professionals, we stand as a leading provider of smart toilet hardware in China, renowned for excellence in PCBA main control systems and instant water heaters.
Deeply rooted in the electronic bathroom solutions sector, we deliver end-to-end services—from core PCBA control boards, instant heating modules, and structural component development to final assembly. By overcoming the critical challenges of electronics-mechanics integration in smart toilet R&D, we ensure low-risk, high-efficiency, and cost-effective product development from concept to mass production. Empowering global brands to bring innovative products to market swiftly and seamlessly.
Core Competencies
1. Smart Toilet PCBA Specialist
- Dedicated Development: Tailored for smart toilets with integrated seat heating/flush control, energy-saving algorithms, and multi-layer safety protection
- Advanced Function Integration: Supports premium features like health monitoring (e.g., urine analysis)
2. Structural Mold Innovator
- Industry Pain Point Resolution: Proprietary mold development and mass production expertise for core components (seat covers, lids, water tanks)
- Precision Engineering: Controls large-part deformation (e.g., seat shrinkage) and reduces trial molds by 30%+
3. Vertical Integration
-Supply Chain optimization: Strategic partnerships consolidate key resources across electronic components, injection molding materials, and hardware parts, achieving optimal BOM costs.
- Intelligent Manufacturing: In-house high-precision SMT production lines ensure motherboard reliability and mass production cost efficiency.
- One-Stop Delivery: Custom manufacturing services (ODM/OEM) covering PCBA, structural components, and full assembly, streamlining multi-vendor coordination from prototype to volume production.
Why Partner With Us
Your Pain Points | Our Solutions |
PCBA-structure mismatch | Co-design service with DFM analysis |
Costly mold trials | Reduces trial iterations with expert DFM |
Multi-vendor coordination hell | One-stop delivery: PCBA to final assembly |
Slow time-to-market | Modular platform and mature processes accelerates product launch. |
Trusted By Global Leaders
▸ 800W+ smart toilet PCBAs delivered
▸ 100+ toilet-specific molds developed
▸ Certifications: ISO 9001, CCC
How We Work
- ODM: Full smart toilet solution (hardware + software)
- OEM: Build PCBA/structures/full system per your design