Certified Where It Matters | Exceeds ICWM Standards • ANSI Tested • NSF Certified • RoHS Compliant

The Most Trusted Source for Industrial Casters | 100,000+ Orders Fulfilled for OEMs & MRO Teams

Products Manufactured in ISO 9001:2015-Certified Facilities | Trusted by OEMs & MRO Teams

In Stock. Ready to Ship. Trusted by Industry Pros.

Caster Specialists Ready to Help | Get Fast Guidance for OEM & MRO Applications

Guaranteed Lowest Pricing on Bulk Orders | Automatic Discounts Applied Instantly at Checkout

Hamilton Spinfinity Maxi-Duty Dual Swivel Caster with 12" x 5.5" Natural Polyurethane (93A Ester) Presson Wheel with 1 1/4" Sealed Precision Ball Bearings - | CasterHQ

Hamilton Spinfinity Maxi-Duty Dual Swivel Caster with 12" x 5.5" Natural Polyurethane (93A Ester) Presson Wheel with 1 1/4" Sealed Precision Ball Bearings

Volume discounts applied at checkout

50-99 units: 5% Off
100-199 units: 10% Off
200+ units: 15% Off

.price-ui--loading { display: block !important; opacity: 1 !important; }

$5,602.00 USD - $5,641.06 USD

Status: In Stock

Most in-stock items ship same or next business day. Shipping rates shown at checkout.

PRODUCT CODE: S-ZFMDD-1255POYB-ULTRA

Product Overview

Hamilton Spinfinity Maxi-Duty Dual Swivel Caster with 12" x 5.5" Natural Polyurethane (93A Ester) Presson Wheel with 1 1/4" Sealed Precision Ball Bearings

Introducing the Hamilton Caster Part#: S-ZFMDD-1255POYB-ULTRA - the ultimate solution for heavy-duty mobility needs. Designed to provide exceptional strength and durability, this caster is your reliable companion when it comes to handling weighty loads with ease. With an impressive weight capacity of 10800 lbs, it is built to tackle even the most demanding industrial environments.

The Hamilton Caster Part#: S-ZFMDD-1255POYB-ULTRA is meticulously engineered to ensure optimal performance and longevity. Crafted with high-quality materials and precision manufacturing, it offers a robust solution that can withstand the rigors of heavy-duty applications. Its durable construction provides superior resistance to wear and tear, ensuring a long service life that saves you time and money on replacements.

This caster boasts smooth and effortless maneuverability, allowing you to transport heavy loads with minimal effort. Its swivel mechanism enables easy pivoting and turning, making it ideal for navigating tight spaces and corners. The caster rolls smoothly on a variety of surfaces, providing reliable movement across different terrains.

Technical Specs

Swivel or Rigid caster Swivel
Load Capacity (lbs.) @ 3 mph 10800
Wheel Diameter (in.) 12
Wheel Face (in.) 5.5
Overall Height (in.) 16.375
Mounting Plate (in.) 8 1/2 x 8 1/2
Caster Color/Finish Crimson Powder
Wheel Type TerraTech Ultra
Wheel Color/Finish Natural Poly on CNC-Machined 1045 Blank
Bearing Type Precision Sealed Ball
Replacement Wheel W-1255-POYB-ULTRA-1-1/4
Wheel Material @ Tread Polyurethane
Shipping Weight (lbs.) 243
Bolt Holes (in.) 7 x 7
Load Capacity (lbs.) @ 10 mph 7900
Load Capacity (lbs.) @ 6 mph 9000
Caster Rig Type Kingpinless

Key Features

Exceptional weight capacity of 10800 lbs for heavy-duty applications.
Durable construction ensures long-lasting performance.
Smooth and effortless maneuverability for easy transportation.
Swivel mechanism enables easy pivoting and turning.
Versatile performance on various surfaces and terrains.

Ordering & Shipping Information

Transparent pricing

All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.

Upfront shipping costs

Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.

Business-friendly ordering

We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.

Real support from product specialists

Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.

Trusted by industrial and commercial customers

CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.

Flat-rate shipping by order size. Final shipping cost shown before payment.
No post-checkout shipping adjustments or re-billing.
Most orders ship from our Texas headquarters near Dallas.

When will my order ship?

In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.

Will shipping cost more at checkout?

Shipping is not free on most orders. Your final shipping cost is shown before payment.

Typical transit times after shipment

Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.

Made-to-order items (lead times)

Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.

Need an exact freight quote for a large order?