Autoclaved aerated concrete blocks (AAC blocks) are lightweight precast products designed for modern, sustainable construction. They reduce structural load, improve insulation and cut your overall building costs. Because they’re energy efficient and recyclable, they’re a common choice in residential, commercial and industrial projects.

Choosing the right AAC block machine manufacturer is the first step in building a reliable production facility. The choice of supplier determines your production efficiency and long-term profitability, so choose wisely.

This list of the top AAC block machine manufacturers in China will help you make the smart choice! When you're ready, contact the Lontto team for an obligation-free quote.

How We Chose AAC Block Machine Manufacturers In China

how we chose aac block machine manufacturers in china

This list is based on professional AAC manufacturers that are active in today’s market and recognized for consistent performance. Selection was made using the following criteria:

  1. Years of Experience: A manufacturer with many years in the industry has refined its technology, understands market demands and can provide proven solutions.
  2. Technology and Certifications: Verified CE, ISO, or equivalent certifications demonstrate compliance with international standards and confirm that machines meet safety, efficiency and quality requirements.
  3. Production Capability: Strong production capacity ensures they can supply equipment for both small plants and large-scale AAC block factories without delays.
  4. Client Reputation: Positive feedback from customers and industry endorsements reflect reliability, service quality and performance in real-world projects.
  5. Track Record: A history of supplying equipment to domestic and international projects shows the company’s ability to handle different scales of production and deliver consistent results.

Top AAC Block Machine Manufacturers In China

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1. Lontto Block Machine

Lontto has been producing block-making machinery since 1990, giving them more than 30 years of hands-on experience in the industry. With over 1,000 employees and three large production bases covering more than 120,000 square meters, they have the scale and expertise to deliver complete AAC block plants.

Their machines are built to German standards and certified under CE and ISO 9001, which makes them reliable for both local builders and international buyers. Lontto’s equipment is used in over 100 countries, backed by full installation support and operator training. They’re considered to be one of the best AAC block machine manufacturers in China.

Pros Cons
✅ Over 30 years of industry experience means proven designs you can count on ❌ Best suited for medium to large plants, less flexible for very small-scale setups
✅ Certified to international standards (CE, ISO 9001) for safety and quality ❌
✅ Complete AAC block plant solutions with global export success ❌

Company Specifications

Been In Business For: Over 30 years (founded in 1990)
Technology & Certifications: German-standard AAC block plants with CE and ISO 9001 certifications
Production Capacity: 50,000 to 400,000 m³ per year

2. Anhui KEDA Industrial Co., Ltd. (aka. KEDA Machinery)

KEDA Machinery is a China AAC plant specialist. You may know them as KEDA Suremaker! They deliver customized, full-scale AAC brick making machine solutions. Starting in the early 2000s, it’s grown as part of the publicly listed KEDA Industrial Group (which got its start in 1992 and is listed in both Shanghai and Switzerland).

KEDA covers everything from raw material testing, R&D labs and formula design to turnkey engineering and installation, all backed by industry-standard certifications. Plus, they hold vice-chair roles in both the China Aerated Concrete Association and the European AAC Association, which is an indication of how serious they are about driving industry standards.

Pros Cons
✅ Offers end-to-end AAC plant solutions from material testing to on-site commissioning ❌ Turnkey services may come with higher costs compared to single-machine suppliers
✅ Strong R&D capability and active role in standards-setting ensure reliable technology ❌
✅ Global reach with projects across Asia, the Middle East, Europe, and South America ❌

Company Specifications

Been In Business For: Since the early 2000s under the KEDA SUREMAKER brand; part of KEDA Group founded in 1992
Technology & Certifications: Full AAC block making solutions supported by R&D centers, automation research, and association leadership roles
Production Capacity: Complete AAC block production lines capable of producing about 80,000 to 400,000 m³ per year

3. Beijing REIT Equipment Technology Co., Ltd.

Founded in 1999 in Beijing, REIT (a subsidiary of RETO Eco‑Solutions, Inc., the first Chinese firm listed on NASDAQ) has more than two decades of experience in block making machine tech.

They’ve steadily built a reputation for delivering reliable concrete and AAC block making machines, backed by Total Quality Control (TQC), recognized electronic/hydraulic components, and collaborations with universities and research institutes.

REIT also embraces eco-friendly development by operating technology to turn solid waste like fly ash into building blocks, and integrating environmental stewardship into their plant design and R&D.

Pros Cons
✅ Known for affordability and equipment that suits small-scale operations ❌ May lack the heavy-duty capacity and customization of large‑plant specialists
✅ Takes quality seriously, uses major brand components and TQC structures ❌
✅ Strong eco-focus, offers processes for using solid waste in block production ❌

Company Specifications

Been In Business For: 26 years as an AAC block machine manufacturer in China
Technology & Certifications: Total Quality Control, use trusted electronic, hydraulic, and pneumatic components; partnership with research institutions to continuously enhance machine design
Production Capacity: Offers multiple series of equipment (RT4, RT6, RT9, RT15, RTM4), serving small- to medium-scale plants; RT12A model can produce ~80 sets per month

4. QGM Quangong Machinery Co.,Ltd

QGM, founded in 1979, is one of China’s longest-standing and most respected block machine manufacturers. They cover a 350-acre facility in Quanzhou and operate with over 200 engineers and technicians. QGM’s business philosophy is built on the principle that quality creates value and professionalism builds enterprise.

They integrate German technology (especially after acquiring Germany’s ZENITH in 2014) and offer a wide lineup of block and AAC production systems. Their commitment to quality is backed by ISO 9001, ISO 14001, ISO 45001, CE certifications and over 300 patents! QGM’s machines support green manufacturing, and they maintain over 35 international service branches.

Pros Cons
✅ Over 45 years of continuous industry presence and refinement ❌ Systems may be too advanced for very small-scale users
✅ Certified to multiple international standards with more than 300 patents ❌
✅ Global support network with service branches in more than 35 countries ❌

Company Specifications

Been In Business For: Over 45 years, since 1979
Technology & Certifications: German ZENITH integration, ISO 9001, ISO 14001, ISO 45001, CE certifications, more than 300 patents
Production Capacity: Full AAC plant solutions from small lines to large-scale systems capable of supplying high-volume projects

5. Fujian Qunfeng Machinery Co., Ltd. (Qunfeng)

Founded in 1995, Qunfeng has spent more than 30 years building a strong reputation in block making equipment. The company owns a 215,000 m² production facility and employs hundreds of engineers and service specialists. Their portfolio includes AAC block lines, concrete block plants, cuber systems and even machinery for processing construction waste.

Qunfeng’s global reach stretches to over 9,000 clients across 112 countries, supported by nine overseas service stations and 24 domestic offices. They hold CE certification, more than 200 national patents and theyre often involved in drafting industry standards. Their mold workshop and heat-treatment systems, based on German technology, enhance the quality and durability of critical tooling.

Pros Cons
✅ Over 30 years of experience and a solid manufacturing base in Fujian’ ❌ Advanced production line features may come with higher investment cost
✅ CE-certified with 200+ national patents and participation in industry standards ❌
✅ Wide global service network and strong customer count across 112 countries ❌

Company Specifications

Been In Business For: Over 30 years (established in 1995)
Technology & Certifications: CE certified, 200+ national patents, German-technology heat-treated mold production, active in drafting national industry standards
Production Capacity: Full lines for AAC blocks, concrete blocks, cuber systems and more

6. Shandong Weida Construction Machinery Co., Ltd.

Shandong Weida, originally called Linyi Weida Machinery and renamed in 2019, is based in Linyi, Shandong Province, a region recognized as one of China’s major logistics hubs. The company operates a 53,000 m² production base, supported by an investment of about 160 million yuan and a workforce of more than 350 people.

Its main product lines include AAC block and panel machines, brick making systems, gypsum powder equipment and foam concrete machinery. Weida produces around 300 complete AAC production sets annually along with auxiliary systems.

The company holds ISO, CE, and SGS certifications and exports to markets that include Russia, Vietnam, South Korea, India, Iran, Singapore and Australia. Weida is well suited for medium-scale AAC production facilities that require dependable machinery at a practical price point.

Pros Cons
✅ Wide range of products including full AAC production lines, autoclaves and mixers ❌ Production scale may not meet the requirements of the largest industrial operations
✅ Certified by ISO, CE, and SGS with an experienced technical team ❌
✅ Competitive pricing and fast delivery times backed by responsive service ❌

Company Specifications

Been In Business For: More than 20 years, with a strong track record in AAC machinery manufacturing
Technology & Certifications: Specializes in AAC lines, gypsum and foam equipment, with ISO, CE, and SGS certifications
Production Capacity: Around 300 sets of AAC wall material lines and supporting equipment per year

7. MingJie Machine (One-Solution)

MingJie Machine, known under the brand “One‑Solution,” positions itself as a one‑stop manufacturer for AAC block and panel production plants. They handle everything from feasibility analysis and plant layout design to equipment manufacturing, installation, commissioning and after‑sales service.

Their product range spans all key sections of an AAC production line, including raw material preparation, batching and pouring, pre‑curing and cutting, autoclaving, packing, and panel processing.

Pros Cons
✅ Offers full turnkey solutions covering all stages of AAC plant development ❌ May be less transparent on production capacity specifics without direct inquiry
✅ Wide product range that covers every core station ❌
✅ Emphasis on integrated service keeps project delivery smooth and single-source accountable ❌

Company Specifications

Been In Business For: Operational since at least 2004
Technology & Certifications: Delivers comprehensive AAC machinery across all plant stages; certification details are not prominently listed
Production Capacity: Offers full lines suitable for most small to medium-sized AAC plant projects; specific capacity must be confirmed case-by-case

Conclusion

Each of the AAC block machine manufacturers in China offers unique strengths in technology, production capacity, and service. From established industry leaders with decades of experience to specialized suppliers with turnkey solutions, there's no shortage of reliable options for construction professionals planning new AAC facilities.

The right choice ultimately depends on your project scale, budget, and long-term goals. Whether you’re setting up your first AAC plant or expanding existing production, working with a reputable partner ensures consistent quality and dependable support.

If you’re considering your options and want guidance from a top AAC block machine manufacturer in China with more than 30 years of proven expertise, Lontto is ready to help. Reach out today to discuss your project needs and explore how our AAC block plant solutions can support your business growth.

Frequently Asked Questions

Can AAC blocks be used in load‑bearing structures?

Yes, AAC blocks are suitable for load-bearing construction up to about three storeys, making them popular for residential and small commercial buildings. For taller projects, they are typically used as infill or partition walls rather than the primary structural element, often combined with reinforced concrete frames for stability.

What are the typical raw materials used in AAC block production?

Common ingredients include cement, gypsum, lime, silica sand (or fly ash), aluminum powder, and water. When mixed and processed under heat and pressure, these materials react to form a porous, lightweight structure that gives AAC its strength, insulation, and fire resistance properties.

How does autoclaving work, and why is it important?

Autoclaving is a high-pressure steam curing process, typically at around 190 °C and 8 bar, that transforms the raw mix into solid blocks. This step is crucial because it creates the crystalline structure that gives AAC blocks their unique combination of light weight, compressive strength, and long-term durability.

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chao zhang

Author: Chao Zhang

I am Chao Zhang, I have been working in the brick making industry for over 10 years. I have a deep understanding and research on various models of block making machines, especially automatic brick machines, concrete block machines, compressed earth block machines, clay brick machines, cement brick machines. I have a special understanding of this industry. I can help my clients choose the suitable brick machine and assist them in designing and building a brick production factory. If you want to know everything about brick making machines, please contact me. I am happy to help you.