





Cast iron adjustable dumbbells, as a popular fitness equipment, have durability, versatility, space saving, quick adjustment, and are especially suitable for beginners and intermediate fitness people.
| Feature | Specification |
| Material | Premium Cast Iron Plates |
| Construction | Single-mold casting ensures uniform weight and durability |
| Surface Finish | Grinding, polishing, and protective spray coating |
| Weight Options | 12.5KG, 25KG, 25LB (various models available) |
| Adjustability | Smooth, secure weight-switching mechanism |
| Grip | PP & TPR anti-slip handles for safety and comfort |
| Durability | Long-lasting and resistant to wear and tear |
| Suitable For | Commercial gyms, home gyms, fitness studios |
| Packaging | Protective foam + export carton |
a. Ensure the handle is fully depressed Into the dumbbell base. If not fully depressed, the locking mechanism will not be released.
b. Check to see if any weight plates have been put into base backwards. All weight plates must have the selection tongue facing away from the grip of the handle.
a. Make sure both adjustment knobs are set directly to 10LB or 4KG.
b. Make sure all weight plates have the selection tongue facing away from dumbbell grip.
Yes, models like the 12.5KG adjustable dumbbell allow gradual strength training, while heavier models suit advanced users.
Very durable. Each plate is precision-cast, polished, and coated for resistance to wear and tear, ensuring a long lifespan.
Yes. We offer flexible bulk options for gyms, distributors, and fitness equipment suppliers.