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The Kingpinless Heavy Duty 40 Series 6" x 2" Semi-Steel Swivel Caster is engineered to meet the toughest demands in industrial and commercial settings. With a remarkable 1200 lb capacity, this caster is designed to provide superior load handling, ensuring durability and reliability for a wide range of applications.
Built with semi-steel construction, the Kingpinless 40 Series offers exceptional strength while maintaining a lightweight design, allowing for both power and easy handling. Its advanced swivel design ensures smooth and responsive maneuverability, minimizing strain on workers and enhancing operational efficiency.
Choose between different top plate sizes and bearing types to customize your caster for specific requirements, whether you're outfitting equipment in a factory, warehouse, or commercial space. This flexibility makes the Kingpinless Heavy Duty 40 Series an ideal choice for businesses seeking reliability and performance.
Trust in the Kingpinless Heavy Duty 40 Series for your mobility needs, and experience a product that balances strength, precision, and ease of use. Engineered for demanding environments, this caster enhances your operational efficiency and provides lasting performance, making it a smart investment for your business.
Equip your operations with the Kingpinless Heavy Duty 40 Series 6" x 2" Semi-Steel Swivel Caster and enjoy superior load handling, durability, and smooth maneuverability. Choose the right configuration to match your needs and enhance your business today.
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 Heavy Duty 40 Series 6" x 2" Semi-Steel Swivel Caster is engineered for the most demanding industrial and commercial environments. This high-performance caster offers a 1200 lb load capacity, making it an ideal choice for applications that require both strength and durability. Featuring semi-steel construction, it ensures exceptional resilience, even in tough operating conditions. Whether you need to move heavy equipment, large machinery, or other high-weight loads, the Durastar caster is up to the task.
Built with semi-steel materials, the Durastar Heavy Duty 40 Series caster combines the benefits of strength and lightness. The caster is designed to handle substantial weight, providing stability and secure mobility in a variety of environments, from warehouses to factories. Its robust swivel design ensures smooth and responsive movement, reducing user strain and increasing operational efficiency. The caster’s corrosion-resistant properties further enhance its lifespan, making it a reliable option for long-term use in harsh environments.
One of the key features of the Durastar Heavy Duty 40 Series Caster is its versatility. It offers customizable top plate sizes and bearing types, allowing you to choose the perfect configuration for your specific application. Whether you need a larger top plate for added stability or a particular bearing type for smoother rotation, the Durastar caster ensures that you get the right solution for your needs.
The Durastar 40 Series caster is designed to thrive in a wide range of applications. It is particularly suitable for industries requiring heavy-duty mobility solutions, such as:
The Durastar Heavy Duty 40 Series Caster is more than just a mobility solution—it is a long-term investment in reliability and performance. It is designed for professionals and businesses that need a caster that can endure heavy usage while maintaining smooth, effortless movement. Whether you're upgrading your current equipment or building new systems, the Durastar caster is engineered to meet the challenges of demanding environments.
Choose Durastar for superior quality, enhanced mobility, and reliable performance that meets your specific operational needs. Make the smart choice for your business today!
Take your business operations to the next level with the Durastar Heavy Duty 40 Series 6" x 2" Semi-Steel Swivel Caster. Experience exceptional performance, reliability, and ease of use in a wide range of industrial and commercial applications.
This 6" x 2" Semi-Steel Swivel Kingpinless Caster – 1200 lb is rated to 1200 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 Cast Iron wheel with a 2" tread width. Steel / iron wheels give maximum capacity and durability on smooth, hard industrial floors and tolerate heat.
This caster uses a top-plate mount with a 4" x 4-1/2", 4-1/2" x 6-1/4" plate. 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 -45°F to 600°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 Cast Iron 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 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).
Application guidance for load margin, wheel materials, and swivel construction. Confirm ratings against your duty cycle, floor, and temperature before final spec.
Start with total system weight (payload + structure + fixtures), divide by casters that actually share the load, and keep continuous working load per caster at or below roughly 75% of catalog capacity (~25% margin). Heavy-duty kingpinless frames are often used on uneven floors, docks, and towed trains where dynamic load transfer is common — do not assume perfect four-caster share. If impact, drop-offs, or shock loading is expected, treat the margin as a floor, not a stretch goal, and confirm capacity at the wheel diameter and tread you select on this PDP. Dynamic and side loads are separate from static catalog ratings; call out towing or AGV duty when you quote so we can sanity-check the configuration.
Stay with polyurethane when floors are relatively smooth, temperatures stay inside the PU service window, and you want floor protection plus rollability. Move to phenolic, glass-filled nylon, or other high-temp / high-hardness options when heat, certain chemicals, or very high point loads push past what standard PU can sustain. Kingpinless construction solves swivel durability under thrust; it does not raise the wheel’s temperature or chemical limit. Use the wheel material and temperature fields on this product (and sibling SKUs) to match the environment — heat duty and side-thrust duty are independent selection axes.
Kingpin swivels concentrate clamping and much of the axial stack through one pin. Towing hitches, AGV corrections, and side scrub introduce lateral and moment loads that work that pin and the race faces harder than hand-pushed carts. Typical early wear modes include kingpin stretch or hole elongation, race brinelling, and increasing swivel play. Kingpinless designs replace that single-pin stack with a machined or forged raceway that carries thrust through the race path, which is why they are the usual spec for powered towing and higher side-load industrial carts. Pair kingpinless swivels with a wheel and bearing package rated for the same duty — the swivel upgrade alone does not fix an undersized tread or bearing.
$80.00
| Identification | |
|---|---|
| Part Number / SKU | 40-S-620-SS |
| Core | |
| Load Capacity | 1200 lbs |
| Wheel Diameter | 6" |
| Wheel Width | 2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 7-1/2" |
| Rig Type | Swivel |
| Brake | No Brake |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4" x 4-1/2", 4-1/2" x 6-1/4" |
| Wheel | |
| Wheel Material | Cast Iron |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | -45°F to 600°F |
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 | |
|---|---|---|---|---|---|---|
| 900 lbsLighter duty | 6" × 2"Polyurethane | Rigid | 7-1/2" | $23.00 | View → | |
| 1000 lbsLighter duty | 6" × 2"Blue Solid Polyurethane | — | 7-1/2" | $182.00 | View → | |
| 1200 lbs | 6" × 2"Cast Iron | Swivel | 7-1/2" | $80.00 | Viewing | |
| 1200 lbsSame capacity | 6" × 2"Cast Iron | Rigid | 7-1/2" | $40.00 | View → | |
| 1200 lbsSame capacity | 6" × 2"Polyurethane | Rigid | 7-1/2" | $65.00 | View → |
