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The Durastar Medium Heavy Duty S34 Series caster provides outstanding performance and durability in demanding environments. Featuring a robust 4" x 2" rubber on glass-filled nylon wheel, this caster is engineered to handle up to 400 lbs of weight capacity per caster, making it perfect for a variety of heavy-duty applications.
The rubber wheel construction combined with glass-filled nylon provides superior durability and floor protection. It reduces the risk of floor damage, making it an ideal choice for commercial and warehouse settings. Its 4" x 4-1/2" stainless top plate offers compatibility with a range of equipment, ensuring easy installation and reliable performance across multiple applications.
Trust Durastar's commitment to quality and performance. Upgrade your mobility solutions with the Durastar Medium Heavy Duty S34 Series Rigid Caster today for improved efficiency, durability, and smooth operation in your heavy-duty tasks.
Upgrade your equipment with Durastar's reliable and durable casters. Engineered to meet the demands of heavy-duty tasks, these casters ensure smooth movement and long-lasting performance. Shop now for the best in caster technology and take your operational efficiency to the next level.
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 S34 Series 4" x 2" Rubber on Glass-filled Nylon Rigid Caster is engineered for high-performance use in demanding industrial, commercial, and warehouse settings. With a 400 lb weight capacity per caster, it offers a solution for heavy-duty mobility needs.
The Durastar S34 Series Rigid Caster is designed for industrial, commercial, and warehouse environments where mobility and load capacity are crucial. Some common applications include:
Built to last, the Durastar Medium Heavy Duty S34 Series caster combines the durability of rubber with the strength of glass-filled nylon. This construction ensures that the caster can withstand the harshest conditions, including high-traffic areas and environments with heavy, constant movement. The rubber-on-glass-filled nylon wheels provide a smooth, quiet ride while protecting floors from damage, making it a preferred choice for facilities that need reliable, high-capacity mobility solutions.
Durastar’s commitment to quality and innovation is evident in every product we create. The S34 Series casters are designed with the user in mind, ensuring not only maximum performance but also a focus on user safety and ease of operation. With a reputation for engineering excellence and a focus on meeting the needs of industrial, commercial, and warehouse settings, Durastar is a trusted name in caster solutions.
Don’t compromise on mobility. Invest in the Durastar Medium Heavy Duty S34 Series Rigid Caster for superior reliability, durability, and performance. Whether for industrial, commercial, or warehouse use, this caster ensures smooth operations and improved efficiency. Upgrade your mobility solutions today and experience the Durastar difference.
This 4" x 2" Rubber on Glass-filled Nylon Rigid Stainless Caster – 400 lb is rated to 400 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 Nylon wheel with a 2" tread width. Nylon resists chemicals and moisture and carries high loads, which suits washdown and wet environments.
This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-5/8" 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 Rigid caster. Rigid casters track straight for directional stability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for Up 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 Nylon wheel performs best on smooth, hard industrial floors. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 5-5/8". 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).
Application guidance for load margin, wheel materials, and swivel construction. Confirm ratings against your duty cycle, floor, and temperature before final spec.
Treat published load capacity as a continuous working limit, not a one-time peak. Divide total loaded cart weight (product + rack + fixtures) by the number of casters that share the load, then size so that working load per caster stays at or below about 75% of the rated capacity (a common ~25% margin). On four-wheel oven racks, uneven floors and thermal growth can shift load to two or three casters; if your process routinely parks on imperfect floors, engineer for three-caster support rather than perfect four-way share. Confirm ratings at your process temperature — heat softens many wheel compounds and can lower usable capacity versus room-temperature catalog numbers.
Bypass standard polyurethane when continuous or cyclic wheel temperatures exceed the urethane compound’s published service range (often well below typical bake / washdown-after-heat zones). Spec glass-filled nylon or phenolic (or other high-temp tread systems on the PDP) when racks enter ovens, proofers, or wash tunnels where tread softening, bond failure, or flat spots would appear with PU. Match the wheel to the hottest surface the tread sees, including residual heat after exit, and verify chemical exposure (cleaners, fats, steam) against the material notes on this product. When in doubt, ask for the temperature and duty cycle — we will confirm whether this SKU or a high-temp alternate is the right call.
A traditional kingpin clamps the swivel assembly through a single axial fastener. Repeated side thrust from towing, tugger lines, or AGV path corrections loads that pin and the raceway faces in ways ordinary cart steering does not. Over time that shows up as elongated kingpin holes, brinelled races, or loose swivels. Kingpinless (or forged integrated) raceways distribute thrust through a continuous race path instead of relying on that central pin — better suited when side loads are planned into the duty cycle. Oven-rack and high-temp lines still need the correct wheel material first; upgrade the swivel construction when towing or powered side loads are part of the application, not only when heat is.
$46.00
| Identification | |
|---|---|
| Part Number / SKU | S34-R-420-RN-03 |
| Product Series | Durastar 34 Series (Stainless) |
| Core | |
| Load Capacity | 400 lbs |
| Wheel Diameter | 4" |
| Wheel Width | 2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 5-5/8" |
| Rig Type | Rigid |
| Brake | No Brake |
| Distance from swivel centerline to the outer edge of the wheel when turned.Swivel RadiusDistance from swivel centerline to the outer edge of the wheel when turned. | 3-5/16 inches |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4" x 4-1/2" |
| Center-to-center spacing of the top-plate mounting holes.Bolt Hole Pattern (BHP)Center-to-center spacing of the top-plate mounting holes. | 2-5/8" x 3-5/8" slotted to 3" x 3" |
| Wheel | |
| Wheel Material | Nylon |
| Construction | |
| Frame / Finish | Stainless Steel |
| Temperature Range | Up to 180°F |
Drag to rotate. Select a label (OAH, Plate, BHP, Dia, Width) for its dimensioned drawing view; Esc or Back to 3D returns. Double-click or Reset view to recenter. Values from manufacturer specs; series geometry for the 2" tread plate caster family.
Series geometry, reference only. Verify critical dims against the spec table.
Free for design use. Redistribution or resale prohibited.
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 within the same duty class, all in stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 300 lbsLighter duty | 4" × 2"Gray Rubber | Rigid | 5-5/8" | $26.00 | View → | |
| 350 lbsLighter duty | 4" × 2"Gray Rubber | — | — | $14.00 | View → | |
| 400 lbs | 4" × 2"Nylon | Rigid | 5-5/8" | $46.00 | Viewing | |
| 400 lbsSame capacity | 4" × 2"Rubber | Rigid | 5-5/8" | $23.00 | View → | |
| 400 lbsSame capacity | 4" × 2"Rubber | Swivel | 5-5/8" | $24.00 | View → |
