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The Knape and Vogt 8500 Series 30 inch side-mount ball bearing file drawer slide is built for the long drawers where a standard 100 lb cabinet slide runs out of room and rating. At 30 inches, this is the right fit for deep lateral files, wide storage drawers, and heavy shop pull-outs that need both genuine reach and a hold-in detent to stay closed under load.
A loaded lateral file drawer can weigh well past 100 lb once it is full of hanging folders, and a 30 inch drawer box reaches deep enough that the rear contents are genuinely out of reach without full extension. The 8500 series is built for exactly that combination. It also covers deep shop drawers holding heavy tooling, plan drawers in architectural offices, and oversize storage pull-outs in commercial casework. The hold-in detent is worth calling out specifically for those applications: a heavily loaded drawer pushed shut does not stay shut on a plain free-sliding slide — it rebounds. The 8500 series detent stops that.
The 8500 series is cold-formed steel with a zinc finish — the workhorse combination for side-mount ball bearing slides in indoor commercial and shop environments. Zinc protects the steel members through years of service in a dry interior setting. The slide profile is taller than a standard cabinet slide to handle the file-class load and accommodate the quick-disconnect drawer member rail, so confirm the profile clears your drawer side before cutting.
This slide suits cabinet shops, office furniture builders, and contractors who install lateral file pedestals, deep plan-drawer cabinets, or heavy-duty shop storage. The 30 inch length fits cabinet interiors typically in the 31 to 33 inch depth range; KV recommends a maximum drawer width of 36 inches for the 8500 series at this length. Build the drawer box 1 inch narrower than the cabinet opening to leave the required 1/2 inch side clearance per side. In face-frame cabinets, add the matching KV series rear mounting brackets, sold separately — the back end of a 30 inch slide needs that rear support. The Bulk-Pack format makes sense for any order covering more than a drawer or two.
No. The hold-in anti-rebound detent is a mechanical catch that keeps the drawer closed and prevents rebound — there is no damper and no spring assist. The drawer stays put until pulled; it does not slow or ease itself shut.
The 8500 series uses quick-disconnect drawer members — the drawer lifts free once extended, without tools. This is different from the lever-disconnect style on KV's 8400 series cabinet slides.
Slide length and travel are separate specs. This slide is 30 inches in its closed length. Because it is full extension, the drawer member travels approximately that full length, bringing the entire drawer out to the cabinet face — but the 30 inch figure describes the slide, not the opening distance.
No. The 8500 series is non-handed, so both slides in the pair are the same part. Order one pair per drawer.
A 30 inch slide installed in a face-frame cabinet needs rear mounting brackets at the back of the slide. KV makes series-specific brackets for the 8500 line; they are sold separately. Do not skip this step — unsupported rear ends on a heavy, long slide will flex under load.
When the drawer is long, the load is real, and the contents need to stay put between uses, the 30 inch KV 8500 series delivers the length, load class, and hold-in detent to do the job without compromise.
Sold In: 85 Set
