SD02 Cast iron Hex Dumbbells 5-100 lb (OEM)

MOQ 10 ton
Production Ability 500 ton per month
Lead time 15-35 days

SKU: SD02 Category: Tag:

The SD02 Cast Iron Hex Dumbbells are one of the items marking VIC’s brand prestige globally. To ensure robust and long-lasting performance, the product is manufactured under a high-tech process. Consequently, enhancing exercise efficiency, training comfort, and user safety.

Our cast iron dumbbells come in a range of selections from lightweight, medium weight to heavyweight suitable for different workouts. A cast iron hex dumbbell set consists of 5lb to 100lb weight. They can be used for almost all muscle groups of training such as biceps curls, chest flyes, shoulder raises, or leg squats.

Construct from high quality cast iron material, these solid hex fixed weight dumbbells look and work great. They are strong and durable. The excellent surface allows putting them in use directly without rubber coating.

Other designs and customized logo can be added optionally for OEM service.

Product Specifications

Type Fixed weight dumbbell
Material Cast iron
Construction Solid casting
End Shape Hexagon
Surface Finish Regular painting/ Powder coating
Pound Size 5lb, 10lb, 15lb, 20lb, 25lb, 30lb, 40lb, 50lb, 60lb, 80lb, 100lb
Kilogram size 2kg, 2.5kg, 5kg, 6kg, 8kg, 10kg, 12kg, 15kg, 20kg, 25kg, 30kg, 40kg
Customized Logo Included
Customized requirement Yes

What is a hex dumbbell?

A hex dumbbell is a type of free-weights, mostly used in the joint-isolated exercise that targets particular muscle groups or performs a full-body workout.

Our hex dumbbells are made of a solid cast-iron core, with hexagon-shaped ends and contoured handles. That design helps the products obtain a textured and ergonomic grip, which is ideal for preventing rolling, encouraging stay-in-place storage, and allowing for ease of use.

Advantages of our cast iron hex dumbbells

Our cast iron hex dumbbells are typically a budget-friendly basic yet still deliver quality, performance, and longevity.

They are available in a wide range of sizes to coordinate with your workout progress.

Many brands are producing hex dumbbells on the market, so what makes our products stand-out and competitive with them?

Anti-Roll Design

Why are our cast iron dumbbells hexagonal?

The six-sided heads are intended to stop the dumbbell from rolling, making them secure and convenient when using, and reducing weight room hazards.

Single cast

All of our free-weight products are made of single cast, and the hex dumbbells are no exception.

The model SD02 is remarkably built of one solid metal piece, without any part-by-part welding or assembly.

Moreover, the surface is smoothed perfectly without further machining.

As a result, the product’s lifespan will be significantly improved, and it will not be vulnerable to extreme impact.


Our cast iron hex dumbbells are essential for any workout routine and allow for ease of use in various workouts.

They are perfect for either upper body, lower body to a full-body workout. As a form of free-weights, hex dumbbell workouts help increase your resistance level, from then directly generating muscle growth through two specific types of overload, mechanic and metabolic.

Common exercises with hex cast iron dumbbells:

  1. Upper body
  • Dumbbell Bench Press
  • Shoulder Press
  • Biceps Curl
  1. Lower body
  • Dumbbell Lunge
  • Dumbbell Sumo Squat
  • Deadlift
  1. Full body
  • Dumbbell Row
  • Goblet Squat
  • Dumbbell Clean

Choose the Size that Fits You!

There is no exact size range for everyone.

It all depends on your capability, fitness level, age, gender, etc. No one can be sure or guide you to the appropriate dumbbell weight; you will have to figure it out yourself.

However, here we provide you some dumbbell standards for both men and women regarding exercises.

Dumbbell Bench Press

Beginner Novice Intermediate Advanced
Male 33lbs (15kg) 56lbs (25kg) 87lbs (39kg) 124lbs (56kg)
Female 12lbs (5kg) 25lbs (11kg) 45lbs (20kg) 71lbs (32kg)

Dumbbell Lunge

Beginner Novice Intermediate Advanced
Male 17lbs (8kg) 37lbs (17kg) 65lbs (29kg) 101lbs (46kg)
Female 12lbs (5kg) 24lbs (11kg) 41lbs (19kg) 62lbs (28kg)

Dumbbell Row

Beginner Novice Intermediate Advanced
Male 34lbs (15kg) 58lbs (27kg) 91lbs (41kg) 132lbs (60kg)
Female 17lbs (8kg) 29lbs (13kg) 46lbs (21kg) 67lbs (30kg)

Note: these standards are based on the weight of each dumbbell, not two added together. 


These SD02 dumbbells are not adjustable, so you will have to purchase the whole set with multiple sizes to vary during your routine. So you might keep thinking over and over again about the worth of investing in the entire set.

Some questions are like: “How long do hex cast iron dumbbells last?” or “Who sells the best quality hex cast iron dumbbells?”

Among the world’s best performing dumbbell suppliers, our hex dumbbells are made from the highest possible grade of iron casting and professional techniques to achieve reliable construction.

Therefore, they can last for a lifetime, durable, and yield a traditional-feeling choice.

Short Lead time

When placing an order at VIC foundry, we would like to inform you that

  • it will cost from 5 to 7 days to make tooling
  • our max capacity is 500 tons per month and maximizes one container per week.

Benefits of hex dumbbell over other dumbbell’s shapes

Most people claim that hex dumbbells are probably the best option because they are affordable, do not roll, and are more versatile.

Hex dumbbells vs. round dumbbells

In detail, the main advantage of hex dumbbells that exceed the round ones is they do not roll. In most cases, rolling can be a considerable nuisance, and a hazard, especially when it can roll over your feet and causes you injury.

On the other hand, taking advantage of it not rolling away, you can perform multiple floor exercises, which can not be done with round dumbbells, such as dumbbell pushup rows.

Hex dumbbells vs. Comparison with barbells

Barbells are meant for a total mass gain purpose and multiple muscle groups. Hence, compared to the dumbbell counterpart, they involve fewer stabilizer muscles.

While with hex dumbbells, you can perform a broader range of motion and unregulated natural movement, making it easier to build mass and strength. Though the progress can be more moderate than barbells, the risk of injury is unlikely to happen.


There are no reviews yet.

Be the first to review “SD02 Cast iron Hex Dumbbells 5-100 lb (OEM)”

Your email address will not be published. Required fields are marked *