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: S30-S-420-DPR-03
The Durastar S30 Series 4" x 2" Donut Thermoplastic Rubber Swivel Caster combines strength, reliability, and flexibility. Engineered to handle medium-heavy duty loads of up to 300 lbs, this caster provides excellent mobility for industrial equipment, storage carts, and material handling solutions. The durable thermoplastic rubber wheel ensures superior traction, protects your floors, and minimizes noise during operation.
Designed for ease of use, the swivel feature allows for effortless maneuverability in tight spaces and around corners. With a robust 4" x 4-1/2" stainless steel top plate, this caster delivers exceptional durability in demanding environments, from warehouses to factories. The stainless steel construction ensures resistance to corrosion, making it suitable for both dry and damp conditions.
Whether you're looking to enhance your equipment's mobility or improve efficiency in your workspace, the Durastar S30 Series caster offers the perfect solution. The caster's ergonomic design helps reduce operator fatigue, making it an ideal choice for environments where continuous use and mobility are crucial.
Take advantage of Durastar’s reliability and durability. Shop the S30 Series 4" x 2" Donut Thermoplastic Rubber Swivel Caster now to improve the functionality of your equipment and enhance operational efficiency.
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 S30 Series 4" x 2" Donut Thermoplastic Rubber Swivel Caster offers unmatched durability, smooth maneuverability, and high load capacity, making it an essential mobility solution for industrial and commercial applications. Whether you need casters for material handling equipment, storage carts, or other heavy-duty machinery, this product delivers superior performance, longevity, and ease of use.
The Durastar Medium Heavy Duty S30 Series caster is engineered for high performance in industrial settings. Unlike many other casters, its thermoplastic rubber wheels offer superior wear resistance, making it a cost-effective option for long-term use. The corrosion-resistant stainless steel top plate provides added value, ensuring that the caster remains functional and visually appealing for years.
This caster is designed for efficiency, enabling quick and easy movement of heavy loads without compromising on stability or operator comfort. Its ergonomic design improves handling and reduces strain, making it the ideal choice for businesses seeking to optimize their operations and reduce downtime caused by maintenance or equipment failure.
The Durastar S30 Series caster is versatile and suitable for a variety of applications. It is perfect for use in:
Invest in the Durastar Medium Heavy Duty S30 Series 4" x 2" Donut Thermoplastic Rubber Swivel Caster for a reliable, durable, and ergonomic solution that enhances the mobility of your equipment. With its corrosion-resistant stainless steel top plate, high load capacity, and noise-reducing thermoplastic rubber wheel, it provides exceptional value and long-lasting performance. Upgrade your mobility solutions today and experience superior reliability in your industrial and commercial applications.
$52.00
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Overall Height | 5-5/8" |
| Wheel Capacity | 300 lbs |
| Temp Range | -20°F to 180°F |
| Wheel Material | Gray Rubber |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
