3 Inch Wire Rack & Shelving Caster Kit (Set of 4)

The AstraRoll Technical Advantage: Smooth, Silent, and Secure
Standard hard-plastic wheels supplied with cheap shelving units are noisy, scratch floors, and shatter under impact. We engineered our shelving kits to deliver commercial-grade performance:

Whisper-Quiet Floor Protection: Our premium Thermo-Plastic Rubber (TPR) tread combines the durability of hard plastic with the soft, shock-absorbing ride of rubber. It rolls silently across tile and concrete and is 100% non-marking, making it ideal for pristine hospital corridors or high-end retail floors.

Universal OEM Compatibility: Designed with a precision-machined 3/8"-16 x 1-1/4" threaded stem, these casters screw perfectly into the bottom of almost any standard 1-inch wire shelving post. Installation takes seconds—no specialized tools or adapters required.

Total Lock Stability: When you need your mobile rack to act as a stationary prep table, our heavy-duty step-down brakes lock securely into place, preventing both wheel rotation and swivel rig movement.

Integrated Wall Protection: Every kit includes four revolving rubber "donut" bumpers that slide just above the casters. If a heavy cart bumps into a wall or doorframe, the bumper absorbs the impact, saving your facility from expensive drywall repairs.
 
Key Specifications & Technical Attributes

Wheel Diameter: 3" (75mm)
Tread Width: 7/8" (22mm)
Kit Load Capacity: Up to 600 LBS per set of 4 (150 LBS per caster).
Wheel Material: High-Resilience Thermo-Plastic Rubber (TPR) - Grey Tread.
Bearing Type: Precision Dual Ball Bearings in the swivel raceway for effortless turning.
Mounting Stem: 3/8"-16 UNC Thread x 1-1/4" Long (Universal Shelving Standard).
Included Accessories: 4x Rubber Donut Bumpers (3.5" Outer Diameter).
 
Why Choose AstraRoll? (Your B2B Manufacturing Partner)
1. Factory-Direct for Retailers & Brands
We don't just sell kits; we manufacture them. If you are a wire shelving manufacturer, a retail display builder, or a commercial kitchen supplier, we can supply thousands of these caster kits at direct wholesale pricing.

2. Custom Kit Packaging (OEM)
For bulk distributors and brands, we offer fully customized packaging. We can box these sets of 4 (with bumpers and mini-wrenches) in your branded packaging, ready for retail shelves or direct inclusion with your flat-pack shelving units.
 
Frequently Asked Questions (FAQs)

Q: Will these fit my specific brand of wire shelving?
A: Yes. The 3/8"-16 threaded stem is the universal industry standard for nearly all major wire shelving brands with 1-inch diameter posts, including Metro, Nexel, Regency, Eagle, and Seville Classics. Simply unscrew the stationary leveling feet and screw these casters in. 

Q: How much weight can the entire shelving unit hold with these casters installed?
A: This 3-inch kit is rated for a dynamic load of 600 lbs (evenly distributed across the shelves). For extremely heavy industrial storage requiring 1,000+ lbs capacity, we recommend upgrading to our 5-inch Polyurethane wire shelving caster kits.

Q: Do the brakes lock just the wheel, or the swivel too?
A: Our premium brake levers are designed to apply strong positive pressure to the wheel tread, firmly locking the wheel in place so your rack will not roll away while you are loading or unloading inventory.

Q: Are the donut bumpers required for installation?
A: They are optional but highly recommended. The rubber bumpers slide over the stem before you screw the caster into the post. They sit just above the wheel to act as a revolving cushion against walls and other carts.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical. Our delivery schedule is generally structured as follows:
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.