Mbsm.pro, Compressor, GM70AZ, 1/5 hp, ZMC, Cooling, R134a, 150 W, 1.3 A, 1Ph 220‑240V 50Hz, LBP capacity, RSIR, −30°C to −10°C

Category: compressor
written by www.mbsm.pro | 12 December 2025

Le compresseur hermétique ZMC GM70AZ, visible sur l’étiquette de la photo, est un modèle fonctionnant au réfrigérant R134a, conçu pour les applications à basse pression d’aspiration dans le froid ménager. Fabriqué en Égypte par Misr Compressor Manufacturing Co. (ZMC), il cible les réfrigérateurs et congélateurs domestiques alimentés en 220–240 V, 50 Hz, très répandus en Afrique du Nord et au Moyen‑Orient.​​

Caractéristiques techniques essentielles

Le GM70AZ appartient à la famille de compresseurs LBP (Low Back Pressure), avec une plage d’évaporation typique d’environ −30 °C à −10 °C adaptée au froid négatif. Il fonctionne au réfrigérant R134a, avec un refroidissement du moteur par convection statique et une alimentation monophasée 220–240 V, 50 Hz comme indiqué sur l’étiquette.​​

Ce compresseur offre une puissance de l’ordre de 1/5 HP, ce qui le positionne pour des réfrigérateurs et congélateurs ménagers de petite à moyenne capacité. Il est fourni avec des connexions brasées pour aspiration, refoulement et process, ce qui facilite son intégration dans les circuits frigorifiques standards des fabricants et des ateliers de maintenance.​

Tableau – Données techniques typiques ZMC E/GM70AZ

Paramètre Valeur indicative
Modèle GM70AZ / EGM70AZ ​
Réfrigérant R134a ​
Application LBP (basse pression d’aspiration) ​
Plage de Te −30 °C à −10 °C ​
Tension / fréquence 220–240 V ~ 50 Hz, 1 Ph ​​
Type de compresseur Hermétique à piston (reciprocating) ​
Refroidissement compresseur Statique ​
Domaine d’utilisation typique Réfrigérateurs / congélateurs domestiques ​

Enjeux pour le froid domestique

Les compresseurs GM70AZ et EGM70AZ s’inscrivent dans la stratégie industrielle de ZMC visant à fournir des compresseurs hermétiques compétitifs pour les fabricants de réfrigérateurs et les marchés de rechange. Grâce à leur compatibilité avec le R134a, ils restent courants dans les appareils existants, même si le secteur s’oriente progressivement vers des réfrigérants à plus faible GWP comme le R600a.​

Pour les techniciens frigoristes, l’identification correcte du modèle et du gaz, comme on le voit clairement sur l’étiquette GM70AZ, est essentielle pour respecter les conditions de fonctionnement (tension, plage d’évaporation, type de détente capillaire) et garantir longévité et efficacité énergétique. Ce type de compresseur est largement utilisé dans les ateliers de service en Tunisie, en Égypte et dans la région MENA, où les pièces ZMC sont facilement disponibles.

 

​



Mbsm.pro, compressors, QD43H, QV30H, QD52H, QD65H, QD75H, WV43YB, QD91YB

Category: compressor
written by www.mbsm.pro | 12 December 2025

High‑Efficiency AFT Refrigerator Compressors for Modern Cooling Needs

Introduction

Compact hermetic compressors remain the hidden workhorses of domestic and light‑commercial refrigeration, and the new AFT range shown here illustrates how far this technology has evolved in terms of efficiency, reliability and refrigerant flexibility. Designed for 220–240 V, 50/60 Hz operation, these units target fridge, freezer and beverage cooler manufacturers seeking cost‑effective performance in small capacities.

Product overview

The images present several AFT hermetic refrigerator compressors, including R134a models QD43H, QV30H, QD52H, QD65H and QD75H, alongside R600a models WV43YB and QD91YB, each supplied with starting components and packed in branded cartons for retail or OEM use. The power range spans from approximately 1/10 HP up to 1/4–1/5 HP, matching the typical requirements of single‑door refrigerators, small freezers and display cases in homes, shops and horeca applications.​

Technical characteristics

All units are hermetically sealed, reducing leakage risk and simplifying installation while improving noise control thanks to the steel shell and vibration‑damped mounting feet. Nameplate markings highlight CE conformity and compatibility with either R134a or R600a refrigerants, allowing system designers to align with current environmental regulations and low‑GWP requirements.​

Main models and specifications

Model Refrigerant Nominal power (HP) Typical application scope Supply Notes
QV30H R134a 1/10 HP Small single‑door fridge, beverage cooler 220–240 V, 50/60 Hz Compact footprint suitable for tight cabinets ​
WV43YB R600a 1/10 HP Energy‑efficient domestic fridge with isobutane charge 220–240 V, 50/60 Hz Emphasis on low noise and environmental protection on carton ​
QD43H R134a 1/8 HP Undercounter refrigerators, mini freezers 220–240 V, 50/60 Hz Supplied with external starting relay pack ​
QD52H R134a 1/6 HP Upright refrigerator or small chest freezer 220–240 V, 50/60 Hz Higher displacement for faster pull‑down ​
QD65H R134a 1/5 HP Medium‑size fridge‑freezer combinations 220–240 V, 50/60 Hz Marketed as “High Quality” on packaging ​
QD75H R134a 1/4 HP Larger domestic fridge‑freezers, light commercial coolers 220–240 V, 50/60 Hz Highest capacity R134a unit in the group ​
QD91YB R600a 1/5 HP High‑efficiency freezers or display cabinets using R600a 220–240 V, 50/60 Hz Carton stresses low noise and energy efficiency ​

Market positioning and uses

Branding on the cartons identifies AFT as targeting refrigerator manufacturers, service centres and spare‑parts retailers that require a broad selection of capacities in consistent packaging for easy stocking. The combination of R134a and R600a models allows technicians to replace ageing compressors in legacy appliances or design new equipment that meets current efficiency and environmental expectations without changing voltage or frequency.​

Summary of the topic

This AFT compressor range offers compact hermetic units from 1/10 to around 1/4–1/5 horsepower, engineered for 220–240 V, 50/60 Hz refrigerators and freezers in domestic and light‑commercial settings. With options for both R134a and environmentally friendlier R600a, the series gives appliance manufacturers and service professionals a flexible, low‑noise, energy‑conscious solution for modern cooling systems.​

Model list with basic type

  • QD43H – hermetic refrigerator compressor, typically R134a, 220–240 V, used in small fridges and freezers.​

  • QV30H – hermetic refrigerator compressor, R134a, about 1/10 HP for mini refrigerators and coolers.​

  • QD52H – R134a hermetic compressor around 1/6 HP, LBP, 428 W at MBP conditions in mbsm.pro data.​

  • QD65H – R134a hermetic compressor around 1/5 HP, LBP, 467 W at MBP conditions in mbsm.pro data.​

  • QD75H – R134a hermetic compressor usually marketed as 1/5 HP for commercial or domestic refrigeration.​

  • WV43YB – universal R600a hermetic compressor around 1/10 HP for domestic refrigerators and coolers.​

  • QD91YB – R600a hermetic compressor about 1/5 HP for higher‑capacity fridges and freezers.​



Mbsm.pro, compressor, EGM91AA, refrigerators, Freezing, Cooling, R134a, ZMC compressors, 1/4 hp, Lbp

Category: compressor
written by www.mbsm.pro | 12 December 2025

The EGM91AA is a hermetic reciprocating compressor manufactured by ZMC, designed primarily for use with R134a refrigerant. It operates on a voltage range of 220-240V at 50Hz and is typically used for low back pressure (LBP) refrigeration applications like household refrigerators and freezers.​​

Main Specifications

  • Refrigerant: R134a​​

  • Application: LBP (Low Back Pressure)​

  • Power: 1/4 HP​

  • Voltage/Frequency: 220-240V, 50Hz​​

  • Motor Type: RSIR/CSIR​

  • Starting Device: PTC QP2-15Ω​

  • Oil Charge: 180 cm³ esters (POE)​

  • CE certified​​

Technical Details

  • Evaporating Temperature Range: -30°C to -10°C (suitable for refrigeration, not deep freeze)​

  • Maximum Motor Temperature: 130°C​

  • Locked Rotor Current: 6.78 A​

  • Voltage Working Range: 187-264V​

  • Compressor Cooling: Static​

  • Expansion device: Capillary tube​

Typical Uses

  • Household refrigerators

  • Small commercial refrigerators

  • Appliances using R134a needing 1/4 HP compressor power​

This model is manufactured in Egypt and is widely compatible with fridges operating in regions where 220-240V, 50Hz power is standard

For the EGM91AA (LBP, R134a), the answer leans more to freezing / low‑temperature cooling, but it is used for both refrigerators and freezers depending on the system design.​

What LBP means

  • LBP = Low Back Pressure, which corresponds to low evaporating temperatures, typically about −30 °C to −10 °C.​

  • Such compressors are commonly used in freezers, deep freezers, and low‑temperature refrigerator compartments.​

So for EGM91AA

  • Its data sheet lists application = LBP with evaporating range −30 °C to −10 °C, exactly the range used for freezer or low‑temperature refrigerator circuits.​

  • Practically: if you charge and size the capillary for −25/−30 °C, it works as freezing; if you design around −12/−10 °C, it becomes strong cooling / chiller level.

The EGM91AA compressor from ZMC stands out as one of the most notable solutions in the domestic and light commercial refrigeration sector thanks to its use of R134a refrigerant and its high efficiency under varying climatic conditions. It delivers optimal cooling performance for refrigerators operating on 220–240 V, 50 Hz power, making it a practical choice for both local and international markets. Its advanced technical features translate into quick response, reduced energy consumption, and excellent compatibility with household systems, providing reliable performance backed by solid regional manufacturing.​​

Journalistic introduction

In the fast‑moving world of refrigeration technology, real innovation often hides in the small components that only technicians and specialists tend to notice. At the core of every modern refrigerator, a compressor sets the rhythm for the entire system’s life span and efficiency, and the EGM91AA model is a clear illustration of this principle. A compact steel shell, carefully engineered handling of R134a refrigerant, and optimized power consumption come together to keep food safe and temperatures stable even when ambient heat pushes equipment to its limits.​​

This compressor is more than a metal capsule in a sealed circuit; it is a technical product with a manufacturing story that starts in Egypt and extends across regional markets serving home refrigeration. Designed for 220–240 V, 50 Hz grids and carrying CE conformity, it offers installers and repair professionals a unit that combines robustness, availability of spare parts, and predictable behavior in low back‑pressure applications. As local industries expand their capabilities, models like the EGM91AA show how regional manufacturing can compete in quality while remaining accessible to small workshops and major appliance brands alike.​​

Technical specifications table for EGM91AA

Feature Value
Type Household refrigeration compressor (LBP)
Manufacturer ZMC Egypt
Rated voltage 220–240 V, 50 Hz
Refrigerant R134a
Nominal power 1/4 HP (approx.)
Motor type RSIR / CSIR
Oil charge About 180 cm³ POE ester oil
Evaporating range From −30 °C to −10 °C
Operating voltage band 187–264 V
Certification CE
Country of origin Egypt