Autocaved Aerated Concrete equipment
The foundation of modern lightweight construction begins with high-performance machinery designed for aerated concrete production. Our comprehensive range covers every stage of the manufacturing process, anchored by the AAC block machine that forms the core forming and cutting unit. For scaled operations, the integrated AAC block production line synchronizes batching, mixing, pouring, pre-curing, cutting, autoclaving, and packing into one seamless flow. When a full factory setup is the goal, our turnkey AAC plant delivers site planning, equipment installation, and commissioning under a single responsibility, ensuring fast ramp-up and consistent output. Every component is engineered to maximize the unique properties of aerated concrete—thermal insulation, fire resistance, and light weight—while the modular design of a complete AAC production line allows customization for block, panel, and lintel production at annual capacities ranging from 50,000 to 300,000 cubic meters. The mixing and dosing systems achieve a raw material ratio accuracy of ±0.5%, and the cutting frames operate with a dimensional precision that holds tolerances to ±1 mm across the entire green cake, reducing waste and rework.
Autoclaved Aerated Concrete equipment represents a carefully balanced system where each machine parameter directly influences the final product quality and operating cost. The slurry preparation section includes a ball mill with a throughput of 10–40 tons per hour, adjusted to match line capacity, while high-efficiency screw conveyors and digital weighing hoppers handle the precise addition of cement, lime, gypsum, and aluminum powder. The pouring mixer, available in 4–8 m³ batches, uses a dual-speed agitator to create a homogeneous slurry with controlled aeration time under 60 seconds. Before cutting, the green cake passes through a pre-curing chamber maintained at 40–55°C with 90% relative humidity, allowing it to reach the required cutting strength of 0.2–0.3 MPa. Horizontal and vertical cutting units utilize high-tensile steel wires with diameters from 0.8 to 1.2 mm, mounted on vibratory frames that can handle cake dimensions up to 6.0 m long, 1.2 m wide, and 0.6 m high, with waste generation consistently below 2.5%. The autoclave section is the heart of the curing process, and our equipment integrates ASME-certified autoclaves with typical specifications listed in the table below.
- Autoclave internal diameter: 2.0 m, 2.5 m, or 2.85 m
- Standard working pressure: 1.3 MPa (saturated steam at 194°C)
- Effective length options: 21 m, 27 m, 31 m
- Rail gauge: standard 600 mm or 750 mm
- Control system: PLC-based with 12 preset curing curves
- Energy recovery: flash steam recycling reduces total steam consumption by 15–20%
The detailed technical parameters of a typical mid-capacity Autoclaved Aerated Concrete equipment set are summarized below for quick reference.
| Parameter | Specification |
|---|
| Annual capacity | 150,000 m³ (based on 300 working days) |
| Raw material batching accuracy | ±0.5% for powders, ±1% for water and slurry |
| Slurry density control | 1,450–1,500 kg/m³ |
| Green cake strength after pre-curing | 0.25–0.30 MPa |
| Cutting dimensional tolerance | Length ±1.5 mm, Width ±1 mm, Height ±1 mm |
| Autoclave curing cycle | 8–10 hours (including pressurization and depressurization) |
| Compressive strength of AAC block | 2.5–7.5 N/mm² (depending on density class) |
| Dry density range | 400–700 kg/m³ |
| Thermal conductivity | 0.08–0.18 W/(m·K) for density class 500–600 |
| Total installed power | Approximately 450–650 kW (varies with layout) |
| Steam consumption per m³ product | 140–160 kg |
| AAC block size options | Standard 600×200×100/150/200/250 mm plus custom lengths |
Every steel structural part undergoes sandblasting to SA 2.5 grade and is coated with epoxy zinc-rich primer, while the control cabinets are rated IP54 for dusty plant environments. The cutting line incorporates automated waste removal and a return slurry system that recirculates trim material into the mixer, keeping solid waste below 2% of total input weight. Autoclaved Aerated Concrete equipment in this configuration consistently yields blocks with a density tolerance of ±25 kg/m³ and a visual quality that meets export-grade standards, making it suitable for high-rise infill walls, load-bearing low-rise structures, and insulated panel systems. The machinery’s hydraulic units operate at a working pressure of 16–21 MPa with integrated leak detection, and all motor drives are equipped with variable frequency control to optimize energy use across production shifts.
