Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.
PRODUCT CODE: 91-S-1230-PH-04
The Durastar Xtreme Heavy Duty 91 Series 12" x 3" Phenolic Swivel Caster is engineered for the toughest environments, providing reliable mobility solutions for heavy-duty applications. With a robust 3500 lb capacity, this caster is built to handle demanding loads, making it perfect for industries that require robust transport solutions, such as manufacturing, warehousing, and logistics.
Designed with a 4-1/2" x 6-1/4" top plate for added stability, the caster is built to support large equipment while ensuring smooth and efficient movement. The phenolic wheel provides excellent wear resistance, making it an ideal choice for environments with high impact or abrasion, such as factories or warehouses.
Whether you need to move heavy machinery or large equipment, the Durastar Xtreme Heavy Duty 91 Series ensures effortless maneuverability, even in harsh working conditions. Its swivel design allows for precision navigation, enhancing operational efficiency. Choose Durastar for durability, strength, and long-lasting performance in every application.
Optimize your industrial operations with the Durastar Xtreme Heavy Duty 91 Series caster. Built to withstand extreme loads and rough conditions, it provides unmatched strength and mobility for your heavy-duty transport needs.
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.
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.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
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.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
The Durastar Xtreme Heavy Duty 91 Series 12" x 3" Phenolic Swivel Caster is engineered to provide superior performance in the most demanding industrial environments. With a robust 3500 lb load capacity, this caster is designed to move heavy machinery, equipment, and tools effortlessly while ensuring long-term durability and reliability.
Whether you are transporting large, heavy items across a warehouse floor, maneuvering equipment in a factory, or using it in other high-capacity logistics environments, this caster offers the strength and reliability needed for all types of industrial settings. Its 12" x 3" phenolic wheel provides smooth operation over rough surfaces, ensuring that even under heavy loads, the caster continues to function smoothly and efficiently.
With its durable 4-1/2" x 6-1/4" top plate and swivel design, this caster allows for optimal stability and maneuverability. The swivel feature ensures that your equipment moves easily around corners and obstacles, while the top plate enhances the overall stability of your load, making it ideal for environments with frequent movement and tight spaces.
Constructed from high-quality phenolic material, this caster is built to withstand wear and tear in industrial environments. It can endure high-impact conditions and resist abrasion, ensuring a long lifespan even in the harshest settings. The shock-mitigating design further enhances its ability to absorb vibrations, protecting sensitive equipment from damage while in transit.
Designed with ergonomics in mind, this caster reduces the strain on operators. Its smooth-rolling wheels make it easier to transport heavy equipment with minimal effort, improving the overall productivity and safety of your operations. Whether you're moving tools, machinery, or equipment, you can rely on this caster to make your job easier and more efficient.
From warehouses to factories, the Durastar Xtreme Heavy Duty 91 Series caster is suitable for a wide range of industrial applications. It’s ideal for use in manufacturing, logistics, construction, and other settings that require heavy-duty mobility. Its versatile design ensures it can handle any challenge your operations face.
When it comes to heavy-duty casters, Durastar is a name you can trust. This brand is known for its commitment to providing high-quality, durable, and reliable products that meet the demands of industrial environments. By choosing the Durastar Xtreme Heavy Duty 91 Series, you are ensuring that your operations run smoothly, safely, and efficiently.
Upgrade your equipment transport with the Durastar Xtreme Heavy Duty 91 Series. With unmatched durability, strength, and maneuverability, this caster is the ideal solution for heavy-duty applications. Invest in your operations' efficiency and safety with this high-performance caster today.
$390.00
| Wheel Diameter | 12" |
| Wheel Tread Width | 3" |
| Overall Height | 13-1/2" |
| Wheel Capacity | 3500 lbs |
| Temp Range | Up to 250°F |
| Wheel Material | Phenolic |
| Frame Material | Zinc Plated Steel |
| Bolt Hole Pattern | 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" |
| Mount Style | Plate |
| Plate Size | 4-1/2" x 6-1/4" |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
