SZJ20
2.0m³ High-Capacity Mixing Drum
Searching for "self-loading concrete mixer" or "mobile concrete mixer with large capacity"? The SZJ20 features a 2.0m³ mixing drum and 1710mm discharge height—producing consistent, high-quality concrete batch after batch. Perfect for rural construction, road repairs, and remote infrastructure projects.
YUCHAI 77.3KW Power & 4x4 Traction
Powered by a reliable YUCHAI 4-cylinder water-cooled diesel engine with 4x4 drive and 40° gradeability, this machine climbs steep slopes and navigates muddy terrain with ease. Massive 16/70 R22.5 tires ensure traction anywhere.
Self-Sufficient On-Site Production
With 620L water tank, 40km/h travel speed, and 7500kg operating weight, it loads, mixes, transports, and discharges concrete in one seamless operation—eliminating the need for separate equipment.
Detailed Advantage
Complete All-in-One Concrete Solution
The SZJ20 revolutionizes on-site concrete production by integrating every function into a single self-propelled machine. Its 2.0m³ mixing drum produces consistent, high-quality concrete batch after batch, while the 1710mm discharge height allows direct placement into forms, slabs, or truck mixers. The hydraulically operated loading bucket scoops aggregates from ground stockpiles, while the 620L water tank provides precise water measurement for exact mix specifications. This eliminates the need for separate wheel loaders, stationary mixers, and concrete transport trucks—significantly reducing equipment investment and operating costs for contractors and infrastructure developers.
YUCHAI Power for Demanding Conditions
At the heart of the SZJ20 lies a YUCHAI 4-cylinder water-cooled diesel engine delivering 77.3KW of reliable power. YUCHAI engines are renowned globally for durability, fuel efficiency, and easy maintenance—essential for remote job sites where service access is limited. The 4x4 drivetrain with 40° gradeability ensures the machine can access challenging terrain, from muddy rural roads to steep construction slopes. Massive 16/70 R22.5 tires provide exceptional flotation and traction, preventing bogging in soft ground while maintaining stability during transport.
High Mobility for Multi-Site Operations
With travel speeds up to 40km/h, the SZJ20 moves quickly between job sites without requiring low-boy trailers or transport permits. The 7100×2400×2940mm dimensions and 7500kg operating weight make it road-legal in most regions, while the 40° gradeability ensures it can navigate steep site entrances and rough terrain. This mobility is invaluable for contractors working on multiple small to medium projects where setting up a traditional batching plant isn't feasible.
Operator-Focused Efficiency
The intuitive hydraulic controls allow one operator to manage loading, mixing, and discharging without leaving the cab. The elevated cab position provides excellent visibility to the loading bucket, mixing drum, and discharge area—enhancing safety and precision. Quick-mix cycles keep concrete production moving, reducing labor costs and project timelines. The 620L water tank supports multiple batches without refilling, while the water pump ensures consistent pressure for cleaning and mix adjustment.
Built for Long-Term Reliability
Every component of the SZJ20 is engineered for durability in demanding environments. The reinforced mixing drum features wear-resistant liners for extended life, while the heavy-duty axles and drivetrain withstand the stresses of off-road travel and continuous mixing operations. Maintenance access points are strategically positioned for quick daily checks—fluid levels, filters, and lubrication points can be accessed without specialized tools. Backed by SAAO's 20 years of manufacturing expertise and 2-year warranty, this self-loading concrete mixer delivers the reliability global contractors demand for remote and rural infrastructure projects.

