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The Knape and Vogt 8900 Series is a 22 inch full-extension side-mount ball bearing drawer slide rated 500 lb per pair, finished in zinc, and designed for heavy storage drawers, shop cabinets, and industrial applications where standard 100 lb cabinet slides fall well short of what the job demands.
Most side-mount ball bearing slides top out at 100 to 150 lb per pair — enough for kitchen and office drawers, but not for a shop drawer packed with hand tools, a cabinet holding heavy hardware inventory, or a service truck drawer loaded with power tools. At 500 lb per pair, the 8900 Series handles those applications without asking the installer to compromise on what goes in the drawer. The slide is a standard-motion design: no soft-close, no detent, no spring. The drawer rides on the bearings and stays wherever it is left, which is exactly the right behavior for a workhorse heavy-duty slide.
The slide members are formed steel with a zinc electroplated finish — the segment's standard for indoor corrosion resistance. Zinc protects the steel through daily shop use, cleaning, and the occasional splash without the cost premium of stainless. This is a functional finish on hardware that sits beside the drawer box; it does not need to be decorative. The slide is built to work, not to be seen.
Cabinet shops and contractors building heavy storage, tool storage, or commercial casework are the natural fit here. The 500 lb rating covers everything from a drawer full of router bits and clamps to a commercial parts cabinet. The 22 inch length suits standard-depth base cabinets and shop benches. Because the slides are non-handed and arrive in a bulk carton, a crew can work through a run of drawers without sorting hardware or counting retail bags. One note on fit: the 8900 Series requires 3/4 inch of side clearance per side, which is wider than the 1/2 inch clearance most standard cabinet slides use. Size the drawer box to the opening with that in mind before cutting stock.
It is the per-pair rating — the working capacity for one drawer on two slides installed correctly.
No. The 8900 Series is a standard-motion slide with no soft-close, self-close, or detent. The drawer stays in whatever position it is left.
The 8900 Series is a heavier-built slide — its profile is wider to handle the 500 lb load class. Build the drawer box to leave 3/4 inch of side clearance on each side, not the 1/2 inch used for standard cabinet slides.
Side-mount slides need rear support in face-frame cabinets. Add the appropriate rear mounting brackets for the 8900 Series — brackets are series-specific and sold separately.
Bulk-Pack quantities vary by carton. Check the pack quantity shown on the product page for the exact count.
When the load is real and the application is demanding, the 8900 Series gives you a 500 lb rated, full-extension zinc slide that keeps up without adding complexity you do not need.
Sold In: 1 Set
