Cast Iron Vs. Cement Kettlebells (4 Main Differences)

About Kettlebells

Cast Iron Vs. Cement Kettlebells – Differences from 4 aspects

1. Core materials used – kettlebell mold

While craftsmanship varies, the best monolithic kettlebells are usually made from a single cast-iron mold. There are also cast iron kettlebells made by welding the body to the handle, which are said to be more susceptible to damage than single cast iron molded kettlebells.

A cement kettlebell, on the other hand, is about 90% cement by weight and the remaining 10% is covering, which is the first significant difference between cement kettlebells and cast iron kettlebells.

2. Appearance

Single cast iron kettlebell vs cement kettlebell

Many people mistakenly believe that cement kettlebells look exactly like cement. Instead, cement kettlebells are actually covered with plastic kettlebells such as vinyl, neoprene, or PVC, which come in a variety of colors and patterns.

Cast iron kettlebells generally have a plastic spray coating on the surface to prevent rust. There are exceptions though, some brands sell cast iron kettlebells that may be wrapped in plastic, so it’s worth checking the appearance and information provided.

3. Dimensions

By “size” we mean the difference in density between cast iron and concrete materials, which results in different sizes regardless of weight. This is because cast iron is denser than other materials, and cast metal is three times denser than pure concrete or cement. Iron therefore achieves the target weight in less space and volume than cement, eliminating the need for additional materials.

Therefore, even though they weigh the same, cast iron kettlebells look more compact than cement kettlebells. Not to mention that the extra rubber or plastic coating on the outside will significantly increase the size and diameter of a cement kettlebell.

4. Brand’s product description

The name of the kettlebell material and type of coating used are often included in the product name, so pay attention to whether it’s “cast iron” or “cement.”

This is a description of a cement filled kettlebell.

Cast Iron Vs. Cement Kettlebells – Pros vs Cons

Advantages of Single Cast Iron Kettlebells

Made from a single piece of metal, cast iron kettlebells are generally considered to be sturdy and user-friendly kettlebells with maximum strength and longevity. These kettlebells come with everything you need from a kettlebell and are one of the best value-for-money fitness products.
In addition, it is undisputed that only seamless kettlebells made from solid metal can perform best in all kettlebell exercises. They are sturdy and durable, have a strong grip, and the handles have a standard texture and appropriate width. In addition, since single cast kettlebells are cast only once during the casting process, their size and weight will be a little more precise.
On top of that, cast iron kettlebells offer perfect weight distribution, resulting in proper balance within the kettlebell, which helps improve grip and exercise comfort.

Pros vs Cons of Cement-Filled Kettlebells

While cast iron kettlebells have always been considered a low-cost option, cement kettlebells are cheaper compared to other weights because they are made of cement instead of cast iron.

Many people may not recommend any kettlebell other than cast iron kettlebells for the following reasons:

Alternatives such as cement filled, concrete filled, vinyl coated, plastic coated are not suitable for serious kettlebell training, they are only suitable for a few exercises, and these exercises are usually not very effective due to padding, grip, weight distribution, etc.
Also, there are cases where people find vinyl or plastic coated cement kettlebells inconvenient. They are slippery and can easily slip out of their hands, even if they purchase “anti-slip” ones.
Also, since the weight body is made of cement, it is easy to cause a break if dropped hard, and they do not protect the floor well from damage.
Cement kettlebell does not have a wide range of sizes as cast iron kettlebells. These free weights range from 2 kg to 10 kg and are best suited for use at home or for regular beginners.

Cast Iron Vs. Cement Kettlebells – Final Thoughts

In conclusion, when choosing between cement kettlebells and cast iron kettlebells, you should choose according to the priority of your budget and fitness goals.

If you are very concerned about the price and want to save the budget, choose cement kettlebells. But remember to keep in mind their shortcomings and exercise with caution.
If you prioritize exercise effect and safety, buy single iron cast kettlebells for your gym. You will fall in love with these excellent products from the first sight. But remember to choose a reliable kettlebell supplier to buy, otherwise you may buy a kettlebell with a low price and lower quality.