AAC brick making machine
Our comprehensive range of equipment includes the fully automated AAC block machine, which forms the core of any high-efficiency setup. We also supply complete AAC block production line solutions that integrate cutting, autoclaving, and packaging into a seamless operation. As a dedicated AAC plant manufacturer, we deliver turnkey projects with capacities ranging from 50,000 to 300,000 cubic meters per year. Our AAC production line is engineered for energy savings and minimal waste, featuring Siemens PLC controls, durable moulds, and high-precision cutting frames. The standard configuration handles block sizes from 600×200×100 mm up to 600×250×300 mm, with dry density adjustable between 300 and 800 kg/m³. Below are the key technical specifications and system components to illustrate the depth of our engineering:
- Production capacity: 30–200 m³/day (expandable via modular design)
- Raw material batching accuracy: ±0.5% for cement, lime, and gypsum
- Mould dimensions: 4.2×1.2×0.6 m, with side plate preheating to 45°C
- Cutting precision: ±1 mm vertical, ±1.5 mm horizontal using tilting wire technology
- Autoclave curing: saturated steam at 1.2 MPa, 191°C, cycle time 8–12 hours
- Installed power: approximately 180–350 kW depending on line capacity
- Compressed air system: screw compressor 10 m³/min at 0.8 MPa
- Water recycling: closed-loop slurry system recovering 95% of process water
| Parameter | Specification |
|---|
| Model | AAC-3000 / AAC-5000 / AAC-8000 |
| Annual output (m³) | 30,000–300,000 |
| Block compressive strength (MPa) | 2.5–5.0 (according to density) |
| Dry shrinkage (mm/m) | ≤0.5 |
| Thermal conductivity (W/m·K) | 0.08–0.16 |
| Fire resistance rating | 4 hours (200 mm wall) |
| Mould turnover rate | 2.5–3.5 times per day |
| Total land requirement | 2,000–8,000 m² |
The AAC brick making machine at the heart of the facility combines a sturdy welded steel frame with a vibration-assisted pouring system to guarantee bubble uniformity and green cake integrity. Its moulds are lined with abrasion-resistant HARDOX 450 plates that extend service life beyond 20,000 cycles. The machine incorporates a twin-screw conveying system for quick dry mix feeding, which is synchronized with the slurry mixer via load cells to maintain the exact water-to-solids ratio. An automated tilting crane lifts the poured mould onto the curing rack, where the cake gains sufficient green strength within 2–3 hours under controlled temperature and humidity. After side plate removal, the cake enters the horizontal wire cutter, which uses 0.6 mm high-tensile wires tensioned to 120 N each. The cutting frame can be quickly adjusted to produce blocks, panels, or lintels without changing the wire arrangement. Once cut, the green blocks are transferred to the grouping system and loaded onto autoclave steam trolleys. The autoclaves are constructed from Q345R boiler steel and have a quick-opening door mechanism with safety interlocks. Inside, staged heating and cooling cycles are managed by PID-controlled valves, ensuring that the final product meets the required compressive strength class ACC 2 to ACC 5 as per EN 771-4. Every batch is traceable through the SCADA system, which logs temperature profiles, pressure curves, and vacuum levels. The same supervisory software manages the downstream palletizing and packing robot, allowing full integration with warehouse management. Maintenance is simplified by the open-access architecture of the machine: all hydraulic power packs, filter units, and electrical cabinets are positioned at floor level. A comprehensive spare parts kit, including cutting wires, sealing gaskets, and solenoid valves, ships with the line. On-site training covers mix design optimization, daily inspection routines, and troubleshooting for common issues such as wire breakage or lime reactivity fluctuations. The result is a rugged, round-the-clock production asset that routinely achieves an availability of over 92% and delivers consistent dimensional accuracy for load-bearing and non-load-bearing applications alike.
