1.Tosida (one of the top 50 intelligent manufacturing enterprises): Joint research and development of injection molding temperature control system

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wellscr

2026-06-17 On 2026-06-17

Cooperation Background

As a leading domestic intelligent manufacturing enterprise, Tuosda’s injection molding equipment applied in high-end precision injection molding scenarios (e.g., automotive components and electronic housings) is plagued by prevailing industrial pain points including severe mold temperature fluctuation, dimensional deviation of molded products and excessive equipment energy consumption. Its original temperature control components relied on imported products, which suffered from slow R&D response and poor adaptability, failing to meet customized production requirements. In 2018, Tuosda entered into a long-term strategic cooperation with Suzhou Tianjian, entrusting Tianjian to develop an integrated temperature control solution tailored to its high-end injection molding machines. The core requirements included improved temperature control precision, reduced energy consumption and customizable compatibility.

R&D Investment & Implementation Process

Tianjian set up a special R&D team composed of 3 core R&D engineers (including one PID algorithm specialist), who worked on-site in Tuosda’s production workshop for 15 consecutive days to collect equipment operation data, analyze the fluctuation patterns of mold temperature and identify pain points of heating power loss, thus clarifying the R&D roadmap.
Leveraging the company’s self-developed high-precision temperature sensing technology and solid-state relay power regulation core technology, targeted R&D work was carried out as follows:

Optimize the thermal response performance of thermocouple sensors, cutting the response time from 0.8s to 0.3s to guarantee real-time and lag-free acquisition of temperature signals;
Iterate the W-series PID temperature control algorithm with an added adaptive adjustment module, which automatically adjusts heating power output in response to variations of injection molding materials (such as ABS and PC) and molding processes (injection speed, pressure) to eliminate temperature fluctuation;
Develop energy-saving solid-state relay power modules adopting DBC insulated packaging technology to lower self-energy consumption of modules; circuit design was also optimized to minimize power loss.

R&D Achievements & Cooperation Value

After 3 months of technical iteration and on-site testing, a customized integrated injection molding temperature control solution was finalized, with all core indicators meeting and exceeding targets:

The mold temperature fluctuation range was reduced from ±1.5℃ to ±0.9℃, representing a 40% drop, raising the dimensional consistency qualification rate of molded parts to 99.2% and resolving the dimensional deviation challenge in precision injection molding;
The energy-saving power module cut equipment energy consumption by 15%, saving approximately RMB 12,000 in electricity costs per machine annually;
The solution supports rapid parameter debugging and compatibility matching for various models of Tuosda injection molding machines and diverse production scenarios, delivering a 60% faster R&D response compared with imported brands.

To date, Tianjian has served as the exclusive R&D supplier of core temperature control components for Tuosda’s high-end injection molding equipment, delivering more than 30 sets of customized temperature control solutions and over 1,000 supporting R&D components in total. This partnership facilitates the domestic substitution and upgrading of Tuosda’s high-end injection molding machines and strengthens its market competitiveness.