Soke Hot Runner's typical cases in the field of aging system repair include: repairing a PA6 + 80% metal powder injection molding system for a corporate group client-thereby resolving production instability issues caused by the maintenance difficulties associated with their imported hot runner system-and successfully addressing temperature drift issues in a PPS + 50% Fe (iron powder) material system, which paved the way for long-term partnerships with international enterprises such as Panasonic. These cases highlight Soke's specialized expertise in repairing aging systems under challenging conditions involving high-difficulty materials and high filler content.
1. Repair of a PA6 + 80% Metal Powder Injection Molding System
Background: A publicly listed corporate client had long utilized an imported hot runner system to process PA6 + 80% metal powder. However, issues such as long lead times for parts, slow after-sales response times, and poor communication led to significant instability in their production operations.
Aging-Related Issues:
Frequent production stoppages were required to replace heating bands and thermocouples; temperature deviations at the nozzle tips exceeded ±6°C.
Uneven filling resulted in frequent short shots, causing the scrap rate to rise to 3.5%.
Soke's Solution:
Provided a domestically manufactured, high-stability hot runner alternative.
Optimized the nozzle design to specifically address the material's characteristics of high thermal conductivity and susceptibility to carbonization.
Provided accompanying professional services for carbon removal and temperature calibration.
Repair Results:
Temperature deviation was successfully controlled within ±1.8°C.
The yield rate rebounded to over 99%.
Maintenance costs were reduced by 60%, ensuring stable production delivery.
Technical Highlight: Soke's extensive experience in hot runner design and maintenance for materials with high metal powder content effectively resolved the critical pain points associated with traditional systems-namely, their susceptibility to aging and difficulty in maintenance.
2. Repair of Temperature Control Drift in a PPS + 50% Fe (Iron Powder) System
Background: This system was utilized in the production of automotive electronic components, involving a material composition of PPS + 50% iron powder, which demands extremely high standards for temperature uniformity.
Aging-Related Issues:
After operating for over 40,000 hours, the temperature at the nozzle tips had dropped 7°C below the setpoint.
Dimensional deviations in the multi-cavity molded parts exceeded tolerance limits, thereby hindering automated assembly processes.
Soke Solution:
System disassembly for deep ultrasonic carbon removal;
Bulk replacement of aging heating coils and calibrated Type K thermocouples;
Recalibration of the temperature field, integrated with Delta 5 intelligent temperature control compensation.
Repair Results:
Measured temperature deviation reduced from ±7.2°C to ±2.0°C;
Product dimensional consistency restored, successfully passing the client's factory audit;
Successfully established a long-term supply partnership with Panasonic.
Industry Breakthrough: This project serves as a benchmark case for the domestic substitution of imported hot runner systems within the PPS + Iron Powder application, earning multiple technical patents.
3. Domestic Substitution and Repair for PA12 + 90% Iron Powder Systems
Background: The client previously relied on high-cost imported hot runner systems but faced issues regarding high maintenance expenses and delayed technical support response times.
Aging Issues:
Frequent system alarms due to aging; Delta temperature compensation reached ±14%, approaching its operational limit;
Frequent downtime for debugging and adjustments, resulting in a 15% decline in Overall Equipment Effectiveness (OEE).
Soke Solution:
Provision of a customized hot runner system designed for high-performance engineering plastics;
Enhanced structural design featuring superior high-temperature resistance and wear resistance;
Provision of on-site installation and commissioning support.
Repair Results:
Passed the client's validation testing on the first attempt;
Operated for two years without any major malfunctions;
Total cost of ownership is only one-third that of the imported system.
Client Testimonial: Soke demonstrates its commitment to the vision of "building a leading Chinese brand in hot runner technology" through concrete actions, empowering enterprises to construct carbon-neutral supply chains.
