Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
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.
The Durastar Medium Heavy Duty S30 Series 6" x 2" Sirius Heavy Duty Donut Polyurethane on Aluminum Swivel Caster is engineered for exceptional durability and performance. Designed to handle a load capacity of up to 1250 lbs, this caster ensures smooth and easy movement in demanding environments, from warehouses to industrial floors.
The heavy-duty donut polyurethane wheel provides superior shock absorption and floor protection, making it ideal for a wide range of applications, including material handling, industrial equipment, and heavy machinery. The aluminum construction offers strength and longevity while maintaining a lightweight profile for ease of use.
With a 4" x 4-1/2" stainless steel top plate, this caster is built to last and withstand the toughest conditions. The swivel design enhances maneuverability, allowing operators to navigate tight spaces with ease. Durastar is committed to providing high-quality solutions that ensure optimal performance and reliability.
Invest in Durastar's S30 Series casters for superior performance, reliability, and long-lasting durability. Enhance your operations today with the best in heavy-duty caster technology.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.
Payment & procurement terms
New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
The Durastar Medium Heavy Duty S30 Series 6" x 2" Sirius Heavy Duty Donut Polyurethane on Aluminum Swivel Caster is built to offer outstanding performance, reliability, and versatility in industrial and heavy-duty applications. Designed for operations that require heavy load capacity and smooth maneuverability, this caster is the perfect solution for material handling, factory settings, warehouses, and more.
Built with a focus on quality and user experience, the Durastar S30 Series 6" x 2" Sirius Caster is designed to ensure ease of use, durability, and reliable performance. Its polyurethane-on-aluminum wheel combines the benefits of a high-strength aluminum core with a durable polyurethane outer layer, offering a smooth, noise-free operation while protecting flooring surfaces from scratches and dents.
The swivel design ensures that the caster can pivot 360 degrees, making it ideal for navigating around obstacles and tight corners. This makes it particularly useful in environments where maneuverability is crucial, such as crowded warehouses or assembly lines. Furthermore, the robust 4" x 4-1/2" stainless steel top plate ensures that this caster can handle heavy-duty applications while maintaining a lightweight profile.
Durastar’s commitment to quality means you can trust that each caster is made with precision and attention to detail, ensuring it performs consistently in even the harshest environments. Whether you need to move heavy machinery or delicate equipment, this caster will offer superior support, making it an essential part of your mobility solutions.
Durastar’s casters are known for their reliability and performance. With a focus on high-quality materials and craftsmanship, each caster is designed to meet the toughest standards. By choosing Durastar, you are investing in a product that offers:
Upgrade your mobility solutions with the Durastar Medium Heavy Duty S30 Series 6" x 2" Sirius Swivel Caster. Designed for performance, durability, and ease of use, it’s the ideal solution for a wide range of industrial, commercial, and heavy-duty applications. Trust Durastar to deliver superior quality and lasting reliability.
This 6" x 2" Polyurethane Swivel Stainless Caster – 1250 lb is rated to 1250 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster runs a Polyurethane wheel with a 2" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-3/8" slotted to 3" x 3" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Swivel caster. Swivel casters rotate 360 degrees for full maneuverability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
The Polyurethane wheel performs best on smooth to semi-smooth floors including sealed concrete, tile, and epoxy. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 7-1/2". Account for it when checking equipment clearance, dock height, and ergonomic working height.
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$55.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 6" |
| Wheel Tread Width | 2" |
| Overall Height | 7-1/2" |
| Plate Size | 4" x 4-1/2" |
| Bolt Hole Pattern | 2-5/8" x 3-3/8" slotted to 3" x 3" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 1250 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Frame Material | Zinc Plated Steel |
6" x 2" Polyurethane on Aluminum Swivel Caster – 1,250 lb | CasterHQ
6" x 2" · 1250 lbs
$76
6" x 2" Phenolic Rigid Caster – 1250 lb | 4" x 4-1/2" Top Plate | CasterHQ
6" x 2" · 1250 lbs · Direct fit
$23
6" x 2" Polyurethane Rigid Caster – 1250 lb | 4" x 4-1/2" Top Plate | CasterHQ
6" x 2" · 1250 lbs · Direct fit
$73
View all 6′ x 2′ casters & wheels →
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 1200 lbsLighter duty | 6" × 2"Polyurethane | Rigid | 7-1/2" | $41.00 | View → | |
| 1200 lbsLighter duty | 6" × 2"Polyurethane | — | 7-1/2" | $76.00 | View → | |
| 1250 lbs | 6" × 2"Polyurethane | Swivel | 7-1/2" | $55.00 | Viewing | |
Direct fit6" x 2" Phenolic Rigid Caster – 1250 lb |
1250 lbsSame capacity | 6" × 2"Phenolic | Rigid | 7-1/2" | $23.00 | View → |
| 1250 lbsSame capacity | 6" × 2"Polyurethane | Rigid | 7-1/2" | $73.00 | View → |





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