The Lightweight Block Machine (LBM) is a complete set of equipment specifically designed for manufacturing lightweight blocks.
It can produce both CLC blocks (Cellular Lightweight Concrete), which utilize fly ash, slag, and foamed cement, and AAC blocks (Autoclaved Aerated Concrete), which are cured under high temperature and pressure.
Lightweight Block Machine Price
Small CLC semi-automatic line: $ 5,000โ30,000
Medium-sized fully automated AAC line: $ 300,000โ800,000
Large-scale AAC turnkey plant: $ 1,000,000โ1,500,000
Final price depends on production capacity, automation level, autoclave specifications, and auxiliary equipment configuration.
Types of Lightweight Block Machine
Lightweight Block Machine
Process: Chemical Foaming + Atmospheric Curing
Capacity/batch: 15โ100 mยณ
Automation Level: Semi-automatic / Fully automatic
Used for: Urban cast-in-place, roof slope finding, low-rise filling
Initial Investment: Low
Lightweight Block Machine Process
CLC Manufacturing Process:
Batching โ Foaming agent dilution โ Forced mixing โ Mold pouring โ Ambient temperature curing for 24 hours โ Demolding โ Natural curing for 7โ14 days โ Finished product packaging
AAC Manufacturing Process:
Raw material grinding โ Batching โ Aluminum powder gas generation โ Static pre-curing โ Cutting โ Autoclaving for 12 hours โ Finished product packaging
Main Machine Used Lightweight Block Manufacturing
CLC dedicated foaming and mixing machine
Function: Produces a uniform foam slurry from cement, fly ash, water, and foaming agent in one operation.
Technical Highlights:
- Twin-shaft forced mixing and high-speed flying cutters combine to uniformly mix a 400 kg/mยณ foam slurry in just 30 seconds.
- 45ยฐ angled discharge door allows for rapid, drip-free emptying in 5 seconds.
- Optional 2.2 kW built-in physical foaming pump enables on-site foaming and mixing and pouring, eliminating secondary transport.
Foaming Agent & Aluminum Powder Metering System
Function: Provides a physical foaming agent for CLC and an aluminum powder gasifier for AAC, precisely controlling porosity.
Technical Highlights:
- Closed-loop control using a servo screw and load cell, achieving a metering error of โคยฑ0.5%.
- All-stainless steel piping, resistant to alkali and corrosion.
- One-touch switching between CLC and AAC recipes, with storage for 99 recipes.
- Automatic cleaning to prevent spontaneous combustion of residual aluminum powder.
Cutting Machine
AAC Turntable Cutting Machine
- After turning the blank 90ยฐ, six wires are cut simultaneously, with a dimensional error of โคยฑ1 mm.
- Servo-controlled crosscutting and longitudinal cutting, with a maximum speed of 3 minutes per die.
- Vacuum chip extraction and water circulation ensure a dust-free workshop.
CLC Multi-Blade Saw Cutting Machine
- Diamond saw blade assembly, capable of cutting 5โ10 blades simultaneously, with a daily output of 300 mยณ.
- Track-type automatic feeding, adjustable cutting thickness from 50โ300 mm.
- Water-cooled machine head, resulting in a smooth cut surface that eliminates the need for plastering.
Automatic Palletizer& Strapping Machine
Function: Automatically palletizes, straps, and laminates finished products after they leave the production line, saving 3-4 people per shift.
Technical Highlights:
- Robotic palletizing, pallet size 1.0 ร 1.2 ร 1.8 m, adjustable layer height.
- Automatic PET plastic-steel strapping, with adjustable tension from 400โ2,000 N.
- Online weighing and coding, with QR code batch traceability.
- Integration with ERP for automatic delivery order generation.
Autoclave (AAC-specific, ฯ2.0 x 31 m)
Function: Performs a hydrothermal synthesis reaction in high-temperature, high-pressure saturated steam to generate tobermorite crystals, achieving an AAC strength of โฅ4 MPa.
Technical Highlights:
- Design pressure 1.6 MPa, design temperature 204ยฐC, and four-point safety interlocks.
- Quick-opening door structure, opening/closing in just 3 minutes.
- Waste heat recovery system, reducing steam consumption by 15%.
- Fully automatic blowdown and condensate recovery, ensuring zero emissions.
PLC Control Room
Function: The brain of the entire production line, centrally monitoring recipes, temperature, pressure, output, and energy consumption.
Technical Highlights:
- Siemens S7-1500 series PLC, 512 I/O points.
- 15″ industrial-grade touch screen, real-time animation display of equipment status.
- Cloud data interface, mobile app for remote alarms and OEE analysis.
What is Lightweight Block
The Lightweight Block Machine (LBM) is a complete set of equipment specifically designed for manufacturing lightweight blocks.
It can produce both CLC blocks (Cellular Lightweight Concrete), which utilize fly ash, slag, and foamed cement, and AAC blocks (Autoclaved Aerated Concrete), which are cured under high temperature and pressure.
The application of lightweight block
Lightweight blocks are used in various construction scenarios, including:
- Residential and commercial buildings for interior and exterior walls.
- Partition walls and non-load-bearing partitions.
- Insulation layers in roofs, floors, or cavity walls.
- Low-rise load-bearing structures (depending on the blockโs strength).
- Green building projects focused on sustainability and energy efficiency.
Features of Lightweight Blocks
Low Density: They are made using materials or processes that reduce their density, making them lighter per unit volume compared to standard blocks.
Insulating Properties: Many lightweight blocks offer better thermal insulation than heavyweight alternatives, helping to regulate indoor temperatures and reduce energy consumption.
Structural Versatility: Depending on the type, they can be used for load-bearing walls, non-load-bearing partitions, or as insulation layers in composite structures.
Ease of Handling: Their lighter weight simplifies transportation, lifting, and on-site installation, reducing labor costs and physical strain.
Lightweight Block VS. AAC Block
| Indicator | Lightweight Block (CLC) | AAC Block |
| Curing Method | Ambient temperature & pressure | High-temperature & high-pressure autoclaving |
| Density Range | 400โ1,200 kg/mยณ | 400โ700 kg/mยณ |
| Construction Impact | Demoldable in 24 hours; site-castable | Factory prefabrication required; 12-hour autoclaving |
| Surface Precision | Requires secondary plastering | Can be directly applied with putty |
| Investment Threshold | Low; mobile-friendly | High; fixed autoclave required |
| Applicable Scenarios | On-site filling, renovation | Prefabricated wall panels for assembly |
Lightweight Block(CLC) Process VS. AAC blocks Process
The production process differences between CLC and AAC blocks can be summarized as room temperature foam curing vs. high-pressure steam curing. Below is a comparison by process:
1. Raw Material Preparation
CLC: Cement + Fly Ash/River Sand + Water + Physical Foaming Agent (Foam generated on-site by a foaming machine
AAC: Cement + Fly Ash/Quartz Sand + Quicklime + Gypsum + Aluminum Powder (Chemical Foaming Agent) + Water
2. Gas Generation/Foaming Stage
CLC: Prefabricated, stabilized foam is injected into the cement slurry via a high-speed mixer, creating a 30โ40% closed-cell structure.
AAC: Aluminum powder reacts with the alkaline slurry to release hydrogen dioxide, producing a uniform pore structure of 50โ60%. The reaction is completed in a pre-curing chamber at 40โ60ยฐC.
3. Molding Method
CLC: Directly cast the entire mold in a large volume, then cut to the desired size using a multi-blade saw.
AAC: Initially cast into a large green body of 3โ6 mยณ, pre-cured and hardened, the product is then precision-cut on six sides using a wire cutter.
4. Curing System
CLC: Curing at room temperature (or 40โ60ยฐC in steam) for 24 hours before demolding. Natural curing is then carried out for 20โ28 days before shipment.
AAC: After demolding, the green body is placed in an autoclave and cured in saturated steam at 180โ200ยฐC and 10โ12 bar for 8โ12 hours. This chemical reaction forms tobermorite crystals, doubling the strength.
5. Production Cycle and Equipment
CLC: Simple equipment (mixer + foaming agent + mold), low investment, and mobile on-site production; short cycle times but large footprint.
AAC: Requires large equipment such as a ball mill, cutter, and autoclave, requiring high investment and a fixed factory footprint; however, finished products can be produced within 24 hours, demonstrating a high degree of continuity.
6. Energy Consumption and Cost
CLC: Energy consumption is approximately 20โ30 kWh/mยณ, resulting in low overall costs.
AAC: Autoclave energy consumption is approximately 120โ150 kWh/mยณ, but the product is high in strength and dimensional accuracy, resulting in lower overall costs for subsequent masonry.
Our Service๏ผ
Turnkey Full-Process Service: From process design, equipment manufacturing to installation, training, and post-commissioning supportโwe manage every step for seamless production.โ
Modular Rapid Launch: Main workshop installed in 30 days, production ready in 15 days. Speed up your project with efficient setup.โ
Smart Cloud Monitoring: Track output, energy use, and real-time fault alerts via mobile. Control operations with cutting-edge tech.โ
Trusted Globally: 600+ lines worldwide, exported to 80+ countries. Backed by 7ร24 localized service teams for responsive support. Your success, globally supported.
