What Are the Raw Materials for a Brick Making Machine?

Brick making machines can utilize a wide range of raw materials, such as, clay, shale, coal gangue (coal refuse stone), fly ash, slag, industrial waste (e.g., metallurgical slag), domestic garbage, river sludge, Other natural and industrial by-products

To be suitable for brick production, these raw materials must go through several processing steps to achieve the required technical properties:

Crushing ⇒ Stirring ⇒ Blending ⇒ Aging ⇒ Milling ⇒ Modifying or enhancing material properties

Proper processing ensures the materials meet production needs — especially when making hollow bricks, which are more fragile due to thinner walls and internal cavities.

Hollow brick production demands:
1. Stricter control of the raw material mix
2. Fewer harmful impurities
3. Better particle size distribution (gradation)
4. Even mineral dispersion
5. Improved plasticity and bonding strength

To ensure stable and high-quality brick production, raw materials should meet standards in:
1. Chemical Composition
Must promote good bonding and firing characteristics.
2. Mineral Composition
Should be uniform and suitable for high-temperature firing.
3. Physical Properties
Must offer good plasticity, strength, and workability.

Choosing the right raw materials — and processing them properly — is key to producing durable, high-performance bricks. Whether you’re making solid bricks or hollow blocks, consistency in raw material quality directly impacts structural strength and cost efficiency.