Heavy-duty defrost control timers, copper assemblies, and brass valves engineered for tropical East Java operations.
Understanding the thermodynamic, structural, and operational requirements for defrost timers and bimetal thermostats in East Java’s maritime and industrial refrigeration environment.
As the commercial capital of East Java and Indonesia’s second-largest metropolitan center, Surabaya operates as the primary maritime cold chain gateway for the Eastern Archipelago. Operating through major port facilities like Tanjung Perak Port, local commercial walk-in freezers, seafood processing plants, and cold storage logistics centers are subject to extreme atmospheric conditions. Ambient temperatures in Surabaya consistently average 28°C to 35°C with relative humidity levels exceeding 85% year-round.
In high-humidity environments, moisture ingress into refrigeration evaporators occurs rapidly whenever cold room doors open. Moisture condenses and freezes into heavy ice blankets across evaporator coil fins. Without robust, high-precision Defrost Timers and Bimetal Defrost Thermostats, thermal insulation caused by frost accumulation leads to severe evaporator choking, compressor liquid slugging, elevated power consumption (up to 40% increase), and premature system failure.
A complete commercial defrost termination loop relies on dual-stage protection:
Key engineering thresholds required for defrost controls operating under Indonesian electrical grids and climate profile:
Ningbo Taojun Refrigeration Equipment Co., Ltd. – Leading OEM/ODM Manufacturer of Precision Refrigeration Accessories.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a beautiful tourist city. Founded in 1988, its predecessor was Xiangshan Refrigeration Accessories Factory of Zhejiang University. The company's leading products include: filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, air conditioning cable ties and other refrigeration accessories series products.
After 30 years of hard work and rapid development, it has now become a comprehensive enterprise integrating the design and development, production and sales, and after-sales service of refrigeration accessories. In 2021, it became a national high-tech enterprise. Our company is committed to technological and process innovation, equipment improvement, and the introduction of advanced management concepts to produce first-class products. Customer satisfaction is our unwavering pursuit. With reasonable design, reliable quality, and perfect after-sales service, the "Lingshan" filter has become a well-known brand in the domestic refrigeration industry. The company has successively passed ISO9001:2008 quality management system certification, EU ROHS environmental protection directive certification, and US UL certification. The company always takes customer needs as the basis and continuously innovates management concepts to ensure efficient and stable development.
In 2012, Ningbo Taojun Refrigeration Equipment Co., Ltd. was established, creating the brand "Taojun" condensers, "Taojun" stop valves and other series of products. Over the years, it has established partnerships with well-known domestic and foreign home appliance enterprises such as Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui. The product sales network covers major and medium-sized cities in China and is exported to Europe, America, South America, Southeast Asia, the Middle East, Africa and other overseas markets. The company's goal is to support and cooperate with every sincere customer to achieve a win-win situation.
What We Do: Taojun is specialized in refrigeration parts 38years. Filter drier, access valve, condenser. Feature: TAOJUN copper filter driers are designed to absorb moisture and acid, and to filter out impurities. Normally installed as component and replaced as repair part for both domestic and commercial refrigerators, freezers, ice makers, and walk-in cold rooms across Surabaya and East Java.
Five Pillars of Quality Assurance & R&D Excellence Engineered for High Performance
Our core manufacturing equipment is imported directly from Germany, ensuring ultra-tight tolerance, automatic capillary brazing, and zero-defect contact assembly.
We have 15 engineers in our R&D centre, all of them are doctors or professors from University of Science and Technology of China (USTC) and Zhejiang University background.
Customized sizes, electrical ratings, wire harness lengths, and bracket shapes available. Share your specs with us to build custom HVAC/R solutions.
High-purity copper, imported Japanese liquid crystal spacers and ITO films, high-grade bimetal discs, and European sealing glue resistant to temperatures from -35°C up to 90°C.
High & low temperature test at 75°C and -35°C for 500 hours; thermal shock test 10°C–90°C for 30 minutes; damp heat test 500 hours; 100V breakdown & 24h aging test.
Direct shipping routes from Ningbo Port to Tanjung Perak Port in Surabaya with lead times of 10-14 days. 500-unit flexible MOQs and full customs support.
Compare mechanical defrost timers, bimetal defrost thermostats, and electronic controllers for Surabaya installation.
| Component Type | Core Model / Series | Operating Voltage | Defrost Interval / Temp | IP Rating & Waterproofing | Primary Application |
|---|---|---|---|---|---|
| Mechanical Defrost Timer | TMDE / Sankyo Compatible | 200V–240V 50/60Hz | 6h 40m / 8h / 12h (15-30 min defrost) | IP54 Sealed Casing | Household & Commercial No-Frost Fridges |
| Bimetal Defrost Thermostat | N12 / N20 Series | 250V AC 10A / 16A | Open: +10°C / Close: -5°C (Customizable) | IP67 Epoxy Resin Encapsulated | Evaporator Coil Temperature Termination |
| Bimetal + Thermal Fuse Combo | Integrated Harness Series | 250V AC 10A | Fuse Cutoff: 72°C / 77°C / 84°C | IP67 Double Sealed Tube | Dual Protection for Commercial Freezers |
| Frequency Inverter PCB Board | Taojun Smart AC Series | 220V 50Hz (SNI Compliant) | Dynamic Adaptive Defrost Algorithms | Conformal Coated Circuit Board | Inverter Air Conditioner & Chiller Units |
| Copper Filter Drier (3A Sieve) | Taojun 10g / 15g / 30g / 50g | N/A (Pressure Rated 4.2MPa) | Water Absorption ≥ 20% | Rust-resistant High Purity Copper Shell | Liquid Line Moisture Absorption & Filtration |
Founded as Xiangshan Refrigeration Accessories Factory of Zhejiang University, pioneering copper filter driers and capillary assemblies.
Expanded dedicated factory building, scaling up automated stamping, spinning, and argon-arc welding operations.
Implemented MES intelligent workshop management system, enhancing quality tracking and batch precision for OEM home appliance clients.
Established Ningbo Taojun Refrigeration Equipment Co., Ltd., launching the "Taojun" brand for condensers, stop valves, and defrost assemblies globally.
Recognized as a National High-Tech Enterprise in China, expanding ISO9001:2015, RoHS, and UL certified component lines.
Optimized direct supply chains for Southeast Asia markets including Surabaya, Jakarta, Medan, and Semarang with custom OEM packaging.
Where Taojun Defrost Timers, Thermostats, and Refrigeration Parts are Deployed
High-capacity walk-in blast freezers handling imported meat and exported frozen seafood require heavy-duty defrost timers with high contact current ratings (16A) to endure continuous heavy ice loads under salt-spray coastal air.
Commercial multi-deck glass display chillers in Surabaya retail chains demand IP67 waterproof bimetal thermostats with precise reset points (+10°C) to prevent glass fogging while maintaining exact product storage temperatures.
Fruit and vegetable cold preservation units in East Java hinterlands benefit from Taojun’s copper filter driers and heavy-duty defrost timers operating reliably under grid voltage fluctuations (180V-240V AC).
Precision Refrigeration Components (Filter Driers, Condensers, Defrost Thermostats, Access Valves)
Juntao Refrigeration (NINGBO TAOJUN REFRIGERATION EQUIPMENT CO., LTD.) holds official GB/T19001-2016 / ISO9001:2015 certification (Registration No.: 41325Q00065R0S). Verifiable via China’s CNCA (www.cnca.gov.cn) and Zhongci International (www.zcgirz.com), validating our advanced OEM and ODM capabilities for clients in Surabaya and worldwide.
Addressing technical, logistics, and purchasing questions for defrost timers & thermostats imported into Surabaya, Indonesia.
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