Fulterer 50" Side Mount Full Extension 550 lb Ball Bearing Drawer Slide, Zinc, 5521

Zinc Finish And Serious Fit for Extra-Long, Extra-Heavy Drawers

This is a 50 inch full-extension side-mount ball bearing drawer slide from Fulterer's heavy-duty line, rated 550 lb per pair, with a zinc finish and standard-motion free-sliding action built for industrial and commercial drawer applications.

Key Features

• 550 lb weight capacity per pair — handles the kind of tool, parts, or equipment loads that overwhelm standard cabinet slides by a wide margin.
• 50 inch full extension — the entire drawer clears the cabinet opening so the contents at the back are fully reachable.
• Steel ball bearings in full-length raceways — smooth, controlled travel under heavy load without binding or side flex.
• Zinc finish on cold-formed steel — standard indoor corrosion protection on a slide that is built to work, not to be seen.
• Non-handed design — identical slides fit left and right, so there is no sorting on the bench and no risk of ordering a mismatched pair.
• Standard-motion free-sliding action — no detent, no spring, no damper; the drawer stays exactly where it is left.

Where a 550 lb, 50 Inch Slide Earns Its Place

At 50 inches, this slide is not a kitchen or furniture product. It belongs in shop drawers, service carts, industrial workbenches, equipment enclosures, and storage systems where the drawer itself is long and what goes inside it is heavy. A machine shop's tooling drawer, a fabrication shop's hardware bin, a maintenance cart loaded with power tools — these are the applications where the 550 lb rating per pair stops being a spec and starts being a requirement. The full-extension design means a technician working alone can reach the back of a 50 inch drawer without digging, tipping, or removing the whole drawer box. Standard-motion action suits these environments well: no closing mechanism to override when both hands are full and the drawer needs to stay exactly where it lands.

Steel, Zinc, and Built for Indoor Industrial Work

The slide members are cold-formed steel with a zinc electroplate finish. Zinc is the working standard for heavy-duty ball bearing slides used indoors: it resists the everyday humidity and incidental contact that comes with shop and industrial environments without the cost of stainless steel. The finish is functional, not decorative — this slide will spend most of its life inside an enclosure or under a bench, visible only when the drawer is open. For outdoor, marine, or washdown environments, zinc-plated steel is the wrong material; this slide is rated for dry indoor service.

Who Specifies This Slide

Fabricators, millwork shops, facilities managers, and equipment builders who need a long, high-capacity slide with a predictable fit are the natural buyers. Because the design is non-handed, purchasing a quantity for a run of identical drawers is straightforward — one SKU covers all positions. The 1/2 inch side clearance per side is the standard for this segment, so the drawer box formula is the same as any other side-mount ball bearing slide: build the box 1 inch narrower than the cabinet opening. In face-frame construction, rear mounting support is required at the back of the slide; add the appropriate rear brackets for your cabinet style, as brackets are not included and are series-specific.

The Right Slide for Long, Loaded Drawers

When the drawer is 50 inches deep and the load is real, the Fulterer 5521 provides the capacity, travel, and straightforward fit that heavy industrial and shop applications demand — in a zinc finish that is at home in working environments.