MAO Standard Series Twin Shaft Concrete Mixer
Haomei Machinery's MAO standard series twin shaft concrete mixer, as our main export model, boasts three core advantages: heavy-duty design, precise mixing, and low maintenance costs. It has become the preferred main unit for commercial concrete plants and precast component factories in Asia, Africa, the Middle East, and Southeast Asia. The theoretical single-unit capacity covers 60-240 m³/h, suitable for producing all grades of concrete from C10 to C80. As a sales manager with 20 years of experience in the export market, I have witnessed this model operating stably in mega-projects such as Egypt's new administrative capital and the Dangote refinery in Nigeria. Its comprehensive performance and cost-effectiveness have been validated by over 100 customers worldwide.

The MAO standard series covers a full range of models from MAO1000 to MAO4000, with discharge capacities ranging from 1000L to 4000L, feed capacities from 1600L to 6400L, main motor power from 55kW to 185kW, and a stable mixing cycle of 30-45 seconds per batch. Concrete homogeneity error is ≤3%, meeting the stringent standards for high-grade concrete. Our company adheres to a heavy-duty design concept. The mixing tank is constructed from 20mm thick Q345B wear-resistant steel plates, integrally welded and subjected to aging treatment to eliminate internal stress. The frame utilizes a box-type structure for reinforcement, eliminating the risk of deformation during transportation and full-load operation, and ensuring that the shaft seal flatness error is ≤0.05mm. The mixing arm is made of ductile iron QT500-7, and the mixing blades are made of Ni-Hard IV high-chromium wear-resistant cast iron (hardness ≥ 530HB), extending service life by 3 times compared to ordinary materials, making it particularly suitable for high-abrasion aggregate conditions in Africa and the Middle East.
The multi-shaft end sealing system is a technological highlight of the MAO series SICOMA concrete mixer, employing a four-lip + air pressure protection design, coupled with a dedicated electric lubricating oil pump (four independent pump cores directly supplying oil), completely solving the slurry leakage problem of traditional models and extending the maintenance cycle to 8000 hours. The multi-pipe, multi-channel water spray system is equipped with 16-24 high-pressure nozzles, improving water-material mixing uniformity by 20%, and controlling slump deviation within ±15mm, suitable for the stringent requirements of pumping and precast components for concrete fluidity. Our exclusively optimized planetary gear reducer features an input speed as low as 1500rpm and a stable oil temperature below 60℃. Combined with an optional cooling and filtration system, gearbox life is extended by 50%. The intelligent monitoring system tracks gearbox oil temperature, discharge gate pressure, and lubrication pump status in real time, automatically alarming and shutting down in case of abnormalities, reducing maintenance difficulties for overseas customers. This design is particularly popular in markets with rising labor costs, such as Indonesia and Vietnam.
The MAO series twin shaft concrete mixer boasts strong adaptability, efficiently mixing dry-hard, plastic, fluid, and lightweight aggregate concrete, suitable for various scenarios including highway bridges, ports, high-rise buildings, and precast tunnel segments. In the high-temperature environment of Saudi Arabia (50℃+), thanks to optimized heat dissipation design, it can operate continuously for 24 hours without failure. In the high-humidity region of Bangladesh, the entire machine achieves an IP55 protection rating, and the motor adopts an H-class insulation tropical design, effectively resisting moisture corrosion. For the export market, our company offers customized multi-voltage options from 110V to 690V to adapt to different national power grid standards; optional CE/ISO9001 certification configurations meet the access requirements of the EU, the Middle East, and other regions. In terms of procurement costs, the MAO series SICOMA mixer is 30%-40% cheaper than European brands, while core components have a lifespan of 8000-12000 hours, resulting in a significant overall cost advantage, particularly suited to the cost-effectiveness demands of the Asian and African markets.
As a sales manager, I consistently emphasize the importance of integrated equipment and service solutions. Haomei has established spare parts centers in key markets, ensuring delivery of routine wear parts within 48 hours; providing remote diagnostics and on-site service, with a multilingual technical team guaranteeing timely response. For bulk purchase customers, we offer customized training programs, including operation and maintenance, troubleshooting, and concrete mix optimization, helping customers improve equipment utilization by over 15%. Data from the past three years shows a 42% repurchase rate for the MAO series concrete mixer, with customers in Egypt and Indonesia experiencing an average 60% increase in repeat purchases. This success stems from the equipment's stable performance and our deep understanding of customer needs.
Haomei Machinery's MAO standard series twin-shaft concrete mixers, with their reliable performance, high efficiency, and low total lifecycle cost, have become core equipment in the global commercial concrete industry. We will continue to optimize our technology and provide customized solutions tailored to regional market needs, helping global customers achieve higher returns in the infrastructure construction boom.