All about civil construction knowledge- PARAM VISIONS

What is a pan concrete mixer?/ When do we use pan mixers instead of drum mixers?

 1. What is a concrete pan mixer?

Concrete pan mixers are power-operated machines to blend raw materials such as sand, cement, grit, fly ash, aggregates, etc. to prepare a homogeneous concrete.

They contain rotating blades or rollers within a stationary pan-like container to mix the raw material. The prepared concrete is taken out from the discharge door provided at the side wall of the pan.

2. What are the different types of concrete pan mixers?

a.) Blade pan mixer:

They contain mixing & sweeping blades for blending action. Usually, 4 blades are provided for the preparation of concrete. Two blades rotate at the outer periphery of the pan, while the other two blades cover the inner radial area.

They are available in different capacities as per the customer's needs. 

Blade pan mixers are mostly used while manufacturing precast construction products such as pavers, fly ash bricks, flower pots, etc.

b). Roller pan mixer:

They contain two no. of rollers along with two nos. of sweeping blades. The rollers grind the raw material to create a uniform mixture of all the raw materials. 
When we use lime, fly ash, & grit as ingredients, roller pan mixers are the best option for preparing mortars & concrete.
Lime & fly ash needs grinding action to form a superior & homogeneous blending.
Similar to blade pan mixers, these mixers are also available in various capacities & dimensions to suit the customer's requirements. 

Both these types of pan mixers may or may not contain hoppers to feed the raw materials. Hopper attachment helps for higher output & more production.

Go through the article 👇

👀.  Different types of concrete mixers.

3. Why do we use a concrete pan mixer instead of a drum mixer?

There is one main difference between the pan & drum mixers while preparing the concrete.

In drum mixers, the mixing blades are attached to the drum that moves along with the rotating drum. But in the pan mixers, the pan is kept stationary & the blade or rollers rotate at the required RPM.

The pan mixers make grinding, agitation, & blending actions to produce the concrete.

 The drum mixer is only good at agitating the raw materials due to the gravitational fall of the mixed ingredients. We get the homogeneous mixing only when we feed coarse aggregates into the drum. 

For the mixing of finer raw materials such as sand, grit, fly ash, lime, cement, etc. we need pan mixers. Or we can say that in the absence of coarse aggregates, we need pan mixers for the production of higher-quality concrete.  

Another disadvantage of a drum mixer is that finer ingredients stick to the inner wall of the drum in the absence of coarse aggregates. As the blades cannot do sweeping action, we have to remove the sticky material for every rotational cycle of the drum.

Therefore, we consider using pan mixers in the manufacturing of construction products, where the blending of different colors & finer materials takes place. 

Thank you for going through this article. Have a good day 😄.


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