During AWE 2026 (Appliance & Electronics World Expo), GMCC Meizhi released two new compressor models: KSN98D13* and KSN103D25* . Both models belong to the silent wide-range rotary compressor series and are suitable for residential air conditioning and light commercial air conditioning applications.
Product positioning:
KSN98D13* : Suitable for residential air conditioners, small refrigerators, and other small-to-medium power appliances
KSN103D25* : Suitable for light commercial air conditioners, heat pump heating systems, large refrigerators, and other high-power appliances
The core design objectives of this series directly address four major industry pain points in the household compressor sector: high operating noise, narrow operating condition adaptability, low energy efficiency, and insufficient stability under extreme environments.
The KSN series integrates multiple proprietary technologies developed by GMCC Meizhi:
| Technical Module | Specific Configuration |
|---|---|
| Motor Topology | 15-slot 10-pole low electromagnetic excitation topology |
| Noise Reduction Structure | Double vertical grooves + M-type accumulator bracket |
| Frequency Range | 6–160Hz ultra-wide operating frequency |
| Vapor Injection | Continuous vapor injection technology |
| Reliability | High-rigidity pump body and crankshaft suspension technology |
All technologies have undergone long-term verification through testing from 2023 to 2025. Performance data is based on GMCC Meizhi laboratory test results.
The core competitive advantage of the KSN series lies in noise control. Both models adopt the 15-slot 10-pole low electromagnetic excitation topology, combined with multi-physics modal decoupling and distributed control technology to suppress noise generation at the electromagnetic excitation source.
Measured Noise Data:
| Parameter | Performance Value |
|---|---|
| Overall operating noise (vs. industry benchmark) | 5dB(A) reduction or more |
| High-frequency band (3150Hz–6000Hz) noise | 4.5–11dB(A) reduction |
| 6Hz low-frequency operating noise | As low as 28dB(A) |
The 28dB(A) noise level is significantly lower than normal conversational volume. The 6Hz no-vibration/no-abnormal-noise capability resolves the issue of abnormal noise commonly found in traditional compressors during low-frequency operation.
At the structural level, the double vertical grooves and M-type accumulator bracket optimize mechanical component fit and reduce mechanical friction noise during operation. Combined with high-reliability low-noise permanent magnet motor bearing technology, structural noise transmission is further suppressed.
The KSN series achieves a 6–160Hz ultra-wide operating frequency range, with the minimum frequency reduced by 33% and the maximum frequency increased by 33% compared to conventional products.
Low-Frequency Range (down to 6Hz) : The compressor can continue operating when room temperature stabilizes, avoiding the energy consumption surge caused by frequent start-stop cycles while reducing room temperature fluctuations. This characteristic is particularly suitable for multi-split air conditioning systems operating with a single indoor unit.
High-Frequency Range (up to 160Hz) : Provides sufficient cooling/heating capacity output under high-temperature, high-load conditions to meet rapid temperature adjustment requirements.
Wide Temperature Range Adaptability:
Evaporating temperature can reach as low as –45°C; ambient temperature can be as low as –40°C, meeting the stable heating requirements of heat pumps in ultra-low temperature environments
Condensing temperature reaches 68°C (R32 refrigerant), with stable operation at 65°C ambient temperature
Temperature control fluctuation within ±0.3°C
This wide temperature range capability ensures reliable operation of the KSN series across all-scenario applications, including heating in severely cold regions and cooling in high-temperature environments.
The KSN series compressors achieve Level 1 energy efficiency rating and provide 15% or more energy savings compared to conventional compressors.
The products have obtained the following certifications:
China 3C Certification
EU CE Certification
German TUV Rheinland Energy Efficiency Certification
German TUV Rheinland Noise Certification
The certification coverage of this series confirms compliance with regulatory requirements in major domestic and international markets, making it suitable for integration into export-oriented complete appliance products.
| Technical Dimension | Quantified Metric |
|---|---|
| Noise reduction (overall) | ≥5dB(A) |
| High-frequency noise reduction | 4.5–11dB(A) |
| Operating frequency range | 6–160Hz |
| Energy efficiency improvement | ≥15% |
| Evaporating temperature lower limit | –45°C |
| Minimum operating noise | 28dB(A) |
The GMCC Meizhi KSN series silent wide-range rotary compressor represents a comprehensive integration of technological achievements across three dimensions: noise control, operating condition adaptability, and energy efficiency improvement. For product lines including residential air conditioners, light commercial air conditioners, and heat pump heating systems, this compressor platform delivers quantifiable performance improvements in noise performance, wide-range operating capability, and overall system energy efficiency. The displacement segmentation design of the two models (KSN98D13*, KSN103D25*) provides a clear matching path for component selection across different power segments of household appliance products.
