AJMD K
AJMD K Cast Iron Hex Dumbbell
Solid grey iron hex dumbbell with textured steel grip.
¥7900¥5900
- 1 solid cast iron hex dumbbell (10 kg single unit)
- Solid grey cast iron heads permanently joined to cold-rolled steel handle
- Flat anti-roll hexagonal profile prevents rolling on gym floors
- Durable industrial powder coat resists chipping and moisture
- Precision cross-knurled grip for secure handling
AJMD K Cast Iron Hex Dumbbell
Select Your Setup
Single Dumbbell (1 Unit)
- ✓ Tracked dispatch
- ✓ Tamper-evident safety seal
- ✓ Ideal for a first order
- ✓ 30-day returns
Pair of Dumbbells (2 Units)
- ✓ Tracked dispatch
- ✓ Lower per-unit price than a single order
- ✓ One delivery, no repeat orders
- ✓ 30-day returns
Gym Trio (3 Units)
- ✓ Tracked dispatch
- ✓ Lowest per-unit price
- ✓ One delivery for the whole supply
- ✓ 30-day returns
Express 1-Click Order (Name + Phone)
Selected Package: Pair of Dumbbells (2 Units) (¥10900)
Returns within 30 days
You have 30 days from delivery to return the product under our Returns Policy. Contact our team to initiate.
Kenji Takahashi
Solid cast iron hex dumbbells remain the standard for commercial and garage setups because they do not roll and they do not crack. The knurling on these handles is clean, uniform, and comfortable.
Five Core Construction Facts
Pure Grey Cast Iron
No cement, no plastic shells, and no hollow filler chambers.
Cold-Rolled Steel Core
Durable 28 mm steel handle resists bending under continuous loading.
Anti-Roll Flat Edges
Six wide flats prevent rolling across unlevel floor surfaces.
Uniform Diamond Knurl
Medium-depth knurling supports a secure grasp without sharp burrs.
Heavy-Duty Packaging
Protected inside high-density cardboard and foam for safe transit.
Engineered for Daily Loading
Cast Iron Density
Grey iron heads offer compact mass compared to bulkier synthetic plates.
Precision Shaft Fit
Cold-rolled steel handle is press-fitted deeply into each iron casting.
Hex Geometry
Flat six-sided perimeter arrests momentum on unlevel gym mats.
Protective Powder Finish
Electrostatic powder application locks out atmospheric moisture.
High-Density Cardboard and Foam Crate
Each dumbbell is enclosed within molded high-density foam and sealed inside reinforced cardboard. Prevents transit impacts and keeps the powder coat pristine.
Choose Your Dumbbell Quantity
Fast insured dispatch with real-time shipment tracking.
User Reports
"Solid weight with clean knurling. The hex shape prevents it from rolling across the garage floor when I put it down between sets."
Makoto S.
Customer
"Arrived securely packed in dense foam. The finish is smooth and uniform, and the grip diameter fits my hand comfortably."
Daisuke N.
Customer
"Much more compact than the plastic-coated cement weights I used before. Good balance and solid cast iron feel."
Hiroshi K.
Customer
Dumbbell FAQ
Is this sold as a single dumbbell or a pair? +
This item is sold as a single dumbbell. Order two units if you require a matching pair.
Does the hexagonal shape roll on rubber mats? +
No, the flat hex edges keep the weight stable and prevent it from rolling on flat floors.
What payment methods are supported? +
Payment is completed via cash on delivery or direct bank transfer only.
What is the return window? +
Returns are accepted within 30 days of delivery for unused items in original packaging. The customer pays return shipping.