The AAC block making machine is a high-precision system that transforms raw materials into building blocks featuring uniform texture and excellent thermal performance. It integrates processes such as proportioning, mixing, pouring, pre-curing, cutting, and autoclaving into a single, highly automated operation, thereby optimizing production efficiency and labor costs.
Leveraging R&D and manufacturing expertise in the block equipment sector since 1979, QGM has established a comprehensive quality management system—including ISO9001, ISO14001, and CE certifications—solidifying its position as a reliable supplier of AAC block making machines.
The AAC block making machine utilizes an automated control system to minimize manual intervention, boost production efficiency, and ensure consistent product quality across batches.
For large-scale building material manufacturers, automation reduces labor costs while increasing daily output and production management efficiency.
AAC blocks require high standards regarding dimensional accuracy, internal pore structure, and strength. Through the use of advanced equipment—including precise batching systems, uniform mixing technology, high-precision cutting machinery, and a stable autoclaving process—the system produces AAC blocks with consistent dimensions and performance characteristics.
AAC materials are lightweight and offer low thermal conductivity, excellent fire resistance, and high construction efficiency; consequently, they are widely used in energy-efficient buildings, residential projects, commercial developments, and industrial facilities.
● Annual production capacity: 50, 000 – 300, 000 m³
● Block density range: 400 – 700 kg/m³ (B04 to B07 grade)
● Compressive strength: 2.5 – 5.0 MPa at 28 days
● Thermal conductivity: 0.09 – 0.16 W/(m·K)
● Dimensional accuracy: ±0.5 mm for standard block sizes
● Mould size (standard): 4.0 × 1.2 × 0.6 m (customizable)
● Cutting system: High-speed flat cutting frame with hardened steel wires
● Autoclave pressure: 1.0 – 1.5 MPa saturated steam
● Power consumption: Approx. 18 – 25 kWh per m³ of finished product
● Curing cycle: 6 – 8 hours inside autoclave at 180 – 195°C
| Component | Specification | Key Feature |
|---|---|---|
| Ball mill | φ1200×4500 mm, wet grinding | Fineness < 15% residue on 4900-hole sieve |
| Slurry mixer | Capacity 8 – 12 t/h, paddle type | Adjustable blade angle, wear-resistant lining |
| Mould & side plate | 4.2 × 1.2 × 0.65 m, spring-locked | Tilting hydraulic unloader, auto-oiling |
| Pre-curing chamber | 30 – 45°C, 1.5 – 2.5 h | Closed-loop temperature control |
| Cutting machine | Vertical & horizontal wire frame | Servo-driven, cutting speed 0 – 30 mm/s |
| Autoclave stacker | Grouping grab, 4 – 6 block rows | Automatic stacking/unstacking, cycle 3 min |
| Autoclave | φ2.85 × 32 m, Q345R boiler steel | ASME certified, rapid steam circulation |
| Separating conveyor | Chain-driven roller conveyor | Block spacing adjustment 5 – 20 mm |
|
Comparison Criteria |
AAC Block Making Machine |
Ordinary Concrete Block Machine |
|
Production Materials |
Aerated concrete |
Standard concrete |
|
Product Features |
Lightweight, thermal insulation, sound insulation |
High density, high load-bearing capacity |
|
Molding Method |
Casting, gas generation, cutting, steam curing |
Vibration-compression molding |
|
Application Areas |
Green building, wall material |
Paving stones, standard masonry blocks |
|
Level of Automation |
Generally high |
Depending on equipment type |
▷ Building material manufacturers: Those transitioning from traditional clay bricks or solid concrete bricks to high-value-added, modern wall materials.
▷ Industrialized construction enterprises: Companies requiring a supply of prefabricated building components, such as lightweight partition panels and blocks.
▷ Eco-friendly resource utilization enterprises: Businesses that process industrial solid waste—such as fly ash, slag, and tailings—to realize a circular economy.
▷ Overseas engineering contractors and investors: Those establishing local building material production bases in "Belt and Road" countries and emerging markets.
Regular maintenance of the AAC block making machine can extend equipment lifespan and reduce downtime. Please refer to the following maintenance recommendations for the various components:
|
Components |
Maintenance Recommendations |
|
Mold |
Periodically check for wear to ensure dimensional accuracy |
|
Cutting System |
Check wire tension and cutting precision |
|
Mixing System |
Remove residual material to maintain mixing efficiency |
|
Hydraulic System |
Check pressure and seal integrity |
|
Electrical Control System |
Periodically inspect control components |
