Kiln Burning Vs Clamp Burning of Bricks: Which Method Suits Your Construction Project?

Kiln Burning Vs Clamp Burning of Bricks: Which Method Suits Your Construction Project?

Burning is a crucial stage in brick making that imparts strength and durability to the final product. It is vital to find the right balance between over-burning and under-burning bricks to ensure optimal quality.

When it comes to burning bricks, two common methods are employed: kiln burning and clamp burning. In this article, we will explore the differences between these two methods and their suitability for various construction projects.

Kiln Burning Vs Clamp Burning of Bricks: Which Method Suits Your Construction Project?

Kiln Burning Vs Clamp Burning of Bricks: Which Method Suits Your Construction Project?



A. Kiln Burning of Bricks

Kiln burning involves the use of a permanent structure to burn bricks. The following points outline the characteristics of this method:

  • Permanent Structure:

Kilns are constructed specifically for brick burning purposes. Once the bricks are ready, they need to be transported from the kilns to the construction sites.


  • High Production Capacity:

Kilns have the capability to burn an average of 25,000 bricks per day. This allows for meeting continuous demands for bricks in large-scale projects.

  • Suitable for Large Projects:

Due to its high production capacity, kiln burning is commonly adopted for large-scale construction projects.

  • Burning and Cooling Time:

The process of burning and cooling in kilns typically takes about 12 to 13 days. This duration ensures that the bricks are properly cured and hardened.

  • Quality Output:

Kiln burning has the potential to yield more than 90% good quality bricks. The controlled environment within the kilns contributes to achieving consistent results.

  • Costly Fuel:

Kilns utilize costly fuels such as coal dust to facilitate the burning process.

  • Temperature Control:

Kilns provide the advantage of controlled fire and adjustable temperature ranges, ensuring the desired level of heat during the burning process.

  • Heat Efficiency:

The heat generated during the burning process is utilized for drying the raw bricks, reducing heat wastage.

  • High Initial Cost:

As kilns are permanent structures, the initial investment required for construction can be relatively high.

  • Skilled Supervision:

Due to the complexity of kiln burning, skilled supervision is necessary to ensure proper operation and maintenance.

B. Clamp Burning of Bricks

Clamp burning, on the other hand, involves the use of temporary structures near the construction site. Let’s explore the features of this method:

  • Temporary Structure:

Clamps are constructed as temporary burning sites, allowing for proximity to the construction site.

  • Moderate Production Capacity:

Clamps can burn approximately 20,000 to 100,000 bricks over a period of one to two months. However, meeting continuous demands for bricks may not be feasible with this method.

  • Suitable for Small Projects:

Clamp burning is commonly adopted for small-scale construction projects due to its moderate production capacity.

  • Extended Burning and Cooling Time:

The burning and cooling process in clamps can take anywhere from 2 to 6 months. This longer duration allows for gradual curing and hardening of the bricks.

  • Quality Output:

Clamp burning typically yields around 60% or more good quality bricks. However, variations in temperature control may affect the consistency of the final product.

  • Low-Cost Fuels:

Clamps utilize low-cost fuels such as cow dung, grass, etc., for the burning process.

  • Fire Control:

Once the burning process begins in clamps, it is challenging to control the fire, which can sometimes result in over-burning of the bricks.

  • Heat Wastage:

Unlike kilns, clamp burning does not utilize the heat generated, leading to a higher level of heat wastage.

  • Low Initial Cost:

As clamps are temporary structures, the initial cost involved in their construction is relatively low.

  • Simplicity of Operation:

Clamp burning does not require skilled supervision, as the process is less complex compared to kiln burning.


Choosing between kiln burning and clamp burning of bricks depends on various factors such as project scale, production capacity, quality requirements, and cost considerations. Kiln burning, with its high production capacity, controlled environment, and quality output, is well-suited for large-scale projects that demand consistent and reliable brick supply.

On the other hand, clamp burning, with its lower initial cost and simplicity, can be a viable option for smaller construction projects where continuous brick supply is not critical.

Understanding the differences between these two methods will empower builders and construction professionals to make informed decisions based on the specific requirements of their projects.

Whether it’s kiln burning or clamp burning, the ultimate goal remains the same – to produce high-quality, durable bricks that form the foundation of our built environment.

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