AJMD K Real cast iron for real training.

AJMD K Standard Cast Iron Weight Plate Pair

28 mm standard center hole. Deep lip for safe grip.

¥6900¥4900

  • 2 standard cast iron weight plates (5 kg each)
  • Cast in solid grey iron for compact bar loading.
  • Precision 28 mm center hole fits standard weight bars.
  • Deep outer rim provides positive hand grip when loading.
  • Industrial powder coat protects against rust and handling marks.
✓ In stock SKU: AJMD-PL-5KG-PAIR Standard Cast Iron Weight Plates
30-day returns
· Checked before dispatch

AJMD K Standard Cast Iron Weight Plate Pair

28 mm standard center hole. Deep lip for safe grip.
Cast from dense grey cast iron to minimize thickness while maintaining structural strength. Thin plate profiles mean more iron fits on your standard bars and dumbbell handles, allowing progressive loading without running out of sleeve space. The 28 mm center bore is clean-cut for smooth slides onto standard shafts. An extended outer lip gives your fingers a deep, secure purchase when lifting plates from racks or the platform floor.
CLEAN & SAFE INGREDIENT ASSURANCE
100% Solid Grey Iron Standard 28 mm Center Bore Deep Outer Finger Lip Baked Industrial Powder Enamel Zero Plastic Cladding Odor-Free Foundry Finish Tight Weight Balance High-Density Foam Packaging
PLATE SELECTION

Build Out Your Barbell Sleeve

1 Pair (5 kg x 2)

Two 5 kg plates for micro-loading and initial bar progression.
¥4900 ¥6900
  • ✓ Tracked dispatch
  • ✓ Tamper-evident safety seal
  • ✓ Ideal for a first order
  • ✓ 30-day returns
Most popular

2 Pairs (5 kg x 4)

Four plates providing 20 kg total mass across multiple bars.
¥9400 ¥13800
  • ✓ Tracked dispatch
  • ✓ Lower per-unit price than a single order
  • ✓ One delivery, no repeat orders
  • ✓ 30-day returns
Best value

3 Pairs (5 kg x 6)

Six plates (30 kg total) for full dumbbell and bar loading setups.
¥13800 ¥20700
  • ✓ Tracked dispatch
  • ✓ Lowest per-unit price
  • ✓ One delivery for the whole supply
  • ✓ 30-day returns
1-CLICK INSTANT ORDER

Express 1-Click Order (Name + Phone)

Selected Package: 2 Pairs (5 kg x 4) (¥9400)

Payment method
256-bit SSL Encrypted Cash On Delivery Available

Returns within 30 days

You have 30 days from delivery to return the product under our Returns Policy. Contact our team to initiate.

David Richter

David Richter

Biomechanics Consultant
16 years equipment research
Compact cast iron plates keep the center of mass closer to the hand during dumbbell movements. This minimizes unnecessary rotational torque and keeps lifts stable.

Five Core Plate Qualities

#1

Slim Plate Profile

Fit more plates onto compact dumbbell and barbell shafts.

#2

Deep Finger Rim

Never struggle to pry a plate off flat rubber mats again.

#3

Clean 28 mm Hole

Slides smoothly on all standard 1-inch gym equipment.

#4

Pure Iron Integrity

No sand, cement, or plastic fillers that degrade over time.

#5

Scuff-Resistant Coating

Baked powder coating resists edge chipping and contact marks.

PLATE ARCHITECTURE

Compact Profile, Solid Retention

01

Concentrated Density

High mass density allows thin plate width compared to composite weights.

02

Clean Bore Clearance

Internal 28 mm bore passes standard handles with minimal friction.

03

Integrated Lip Grip

Raised perimeter rim gives fingers leverage when lifting from flat floors.

04

Enamel Defense

Powder coat seals microscopic iron pores against ambient humidity.

Reinforced Multi-Pack Packaging

Packed with high-density foam spacers inside double-wall cardboard boxes to prevent plate-on-plate abrasion during transit.

EXPAND YOUR CAPACITY

Order Your Iron Plate Pair Today

Fast insured dispatch with real-time shipment tracking.

1 Pair (5 kg x 2)
¥4900
Select
2 Pairs (5 kg x 4)
¥9400
Select
3 Pairs (5 kg x 6)
¥13800
Select

User Reports

★★★★★

"Fits my 28 mm standard bars smoothly. The rim is deep enough that picking them off the rubber floor is straightforward."

Hiroshi M. Customer

Plate Specifications FAQ

What barbell sleeve diameter do these fit? +

These feature a 28 mm center bore designed specifically for standard 1-inch (25 to 28 mm) bars and handles.

Can these plates be gripped with one hand safely? +

Yes. The perimeter lip is recessed deep enough for fingertips to securely lock around the rim.

Will they rust if kept in a garage gym? +

The baked powder coat seals the iron. Keep indoor air ventilated and wipe dry after humid or sweaty sessions.

What return options are available? +

Unused items in original packaging can be returned within 30 days of delivery. Customer covers return shipping.

Delivery & payment Returns & refunds Terms & conditions