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28" Heavy Duty Office Chair Base Replacement, Universal Swivel Chair Base with Gas Lift Cylinder & 60mm Casters, 350 lb Load Capacity for Office & Gaming Chairs

28" Heavy Duty Office Chair Base Replacement, Universal Swivel Chair Base with Gas Lift Cylinder & 60mm Casters, 350 lb Load Capacity for Office & Gaming Chairs

$97.77 USD
$97.77 USD
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Taxes included. Shipping calculated at checkout.

About this item

  • Heavy-Duty Reinforced Composite Chair Base – Supports up to 350 lbs: Constructed with an industrial-grade reinforced structural composite body and a solid steel mounting core, this 28-inch heavy-duty replacement chair base supports up to 350 lbs, offering superior stability compared to standard plastic or lightweight bases. Designed to withstand daily use, it helps reduce wobbling, tilting, and long-term wear—ideal for office work, gaming, and extended sitting sessions.
  • 28" Universal Replacement Base for Most Office & Gaming Chairs: Designed to fit most standard swivel and tilt office chairs, including executive chairs, task chairs, and gaming chairs. The seat plate has a fixed mounting hole with a distance of 10.2" x 6", making it a dependable solution for replacing cracked or broken chair bases without the cost of replacing the entire chair. Its sturdy construction ensures long-term stability and durability.
  • Smooth Gas Lift Height Adjustment (14.5"–19.5"): Equipped with a heavy-duty pneumatic gas lift cylinder providing approximately 5 inches of smooth height adjustment, allowing you to easily set the seat height from 14.5" to 19.5". Helps maintain proper posture, improve desk alignment, and support long hours of comfortable sitting.
  • 5 Durable 60mm Casters – Smooth, Stable & Quiet Rolling: Includes five 60mm swivel casters designed for heavy use, offering smooth and controlled rolling on hardwood floors, tile, vinyl, and low-pile carpet. Enhances mobility while maintaining stability, making repositioning your chair effortless in home offices, game rooms, or workspaces.
  • Easy Installation – Complete Replacement Chair Base Kit: Designed for quick and straightforward installation using standard office chair components—no special tools required. Package includes the chair base, gas lift cylinder, and casters for a hassle-free replacement experience. ⚠️ Note: Mounting screws and nuts are not included. Please reuse the original hardware from your existing chair.

Overview

  • Brand: Hxgexin
  • Color: Black
  • Material: Alloy Steel, Plastic
  • Product Dimensions: 28"D x 28"W x 19.5"H
  • Size: 28 inches

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Emily Carter — Seattle, Washington

    I found several useful workspace products at OfficeMellow, and the overall selection felt practical and easy to browse. The items fit well into my home office and helped make the space feel more organized, comfortable, and ready for everyday work.

  • ⭐⭐⭐⭐⭐

    Daniel Brooks — Austin, Texas

    OfficeMellow offers a thoughtful mix of furniture, electronics, and office accessories. The product information was easy to understand, and I was able to find options that matched the size and layout of my workspace without making the setup feel complicated.

  • ⭐⭐⭐⭐⭐

    Jason Reed — Denver, Colorado

    I like that the products are focused on real workspace needs rather than unnecessary extras. I chose a few items for desk organization and device positioning, and they helped create a cleaner setup that feels easier to use throughout the day.

  • ⭐⭐⭐⭐⭐

    Olivia Bennett — Portland, Oregon

    The selection worked well for upgrading my small home office. The products felt practical, fit naturally into my existing setup, and made it easier to keep my equipment, cables, and work area organized. I would consider shopping here again.

FAQ

What types of products does OfficeMellow sell?

OfficeMellow specializes in home office and small business workspace products, including office desks, chairs, storage furniture, monitor and laptop stands, office electronics, cable management, task lighting, shredders, laminators, scanners, docking stations, and related accessories.

How can I check whether a product will fit my workspace?

Please review the dimensions, weight capacity, mounting requirements, and available clearance listed on the product page. For desks, chairs, cabinets, and mounted accessories, we recommend measuring your room, doorway, desk surface, and installation area before ordering.

How do I know whether an electronic accessory is compatible with my device?

Check the product page for supported device models, port types, operating systems, voltage, plug type, monitor size, weight limits, or printer compatibility. Contact us before purchasing if you are uncertain about compatibility.

Do office furniture products require assembly?

Many desks, chairs, cabinets, stands, and shelving products require some assembly. Assembly requirements and included hardware vary by product, so please review the individual product description and instructions before purchase and use.

How much does shipping cost?

OfficeMellow charges a flat standard shipping fee of $6.90 per eligible order, unless a different charge or delivery restriction is clearly shown during checkout.

How long does order processing and delivery take?

Orders are generally processed within 1–3 business days. Estimated delivery within the United States is typically 5–10 business days after shipment. Oversized furniture, split shipments, carrier delays, or high-demand periods may require additional time.

Why did only part of my order arrive?

Products may be stored in different warehouses or shipped in multiple boxes. As a result, items and furniture components may arrive separately with different tracking numbers. Please review all shipping confirmation emails before reporting an incomplete delivery.

Can I change or cancel my order?

Please contact us as soon as possible after placing your order. We will make a reasonable effort to update or cancel an order that has not entered processing or shipment, but changes and cancellations cannot be guaranteed once fulfillment has begun.

What is your return policy?

Eligible products may generally be returned within 30 calendar days of delivery, subject to our Return & Refund Policy. Items should be unused, unassembled, uninstalled, and returned with their original packaging, hardware, manuals, and accessories. Contact us for authorization before sending a return.

What should I do if my product arrives damaged, defective, or incomplete?

Contact us within 7 calendar days of delivery whenever reasonably possible. Include your order number, a description of the issue, and clear photographs of the product, packaging, shipping label, and affected components. Please retain all packaging until the claim has been reviewed.

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