Custom Server Cabinets & Rack Frames
An equipment cabinet has to hold its rails square, swing its doors clear, and roll or bolt down where it is installed. K-Display makes server cabinets, open equipment racks, and rack frames with rails, doors, panels, and cable management, welded or bolted, delivered assembled or knocked down and powder coated.
Rails, doors, and base
A cabinet holds rack-mounted equipment on rails at the depth the equipment needs, behind doors that pass air and close cleanly. We build on 19-inch rails, 23-inch rails for telecom relay racks, or another rail width, at the hole style and depth positions the equipment calls for.
The frame is the datum for everything else. Rails, doors, panels, and cable manager brackets all take their positions from it, so a frame that stays square keeps the rails parallel and the doors closing. Casters or leveling feet, hinges, and bonding points are built onto that same frame.
The frame locates the rails, door hinges and side panels. Keeping that frame square gives each of those separately fabricated parts a consistent place to attach.
Cabinet and rack parts
- Cabinet frames and open racks
- Welded or bolted frames and two-post or four-post open racks in rack-unit heights, with members for rails, doors, and panels. Storage racks are under Industrial Racks & Shelving and outdoor equipment cabinets under Outdoor Equipment Cabinets.
- Rails
- Front and rear 19-inch or 23-inch rails, cut with square holes for cage nuts, round unthreaded holes, or round tapped holes, at fixed or adjustable depth positions.
- Doors and panels
- Perforated, solid, or split front and rear doors with hinge side and lock, and side, top, and bottom panels with cable entries, brush strips, or grommets.
- Cable management brackets
- Vertical manager brackets, tie-off bars, and PDU mounting brackets fabricated and finished to match the frame, with mounting patterns from the accessory drawings.
- Base hardware
- Casters or leveling feet, bolt-down plates, and pallet or forklift-access bases, installed on the frame.
What decides whether the cabinet works
- Construction and shipping state
- A welded frame ships as one piece and a bolted frame ships knocked down, which decides whether the cabinet gets through the door, dock, or elevator on the way to its site. We weld frames square and clean the welds, or cut bolted frames as a kit that assembles where the cabinet is installed.
- Rails, hole style, and datum
- Rack-unit spacing runs from one datum on the rail, and the hole style (square for cage nuts, round, or tapped) sets how equipment fastens. We cut the rail hole pattern from that datum to the rack convention the equipment follows (EIA/ECA-310 for 19-inch), and size cage nut holes for the coated rail.
- Interior clearance
- The space between the rails and the doors and side panels decides whether the deepest equipment, cable bend, managers, and PDUs fit. We set rail depth positions and door and panel offsets from that clearance and check them before cutting.
- Doors and airflow
- Open area and hole pattern set airflow, and they also set door stiffness and how much of the interior shows. We cut the pattern into the door or use perforated sheet, whichever the airflow design calls for, and fit hinges and the lock or latch to the swing.
- Bonding and finish
- Powder coat insulates, so door-to-frame contacts, ground studs, and rail-to-frame bond points need bare metal. We mask those points before coating. Bare plain steel rusts, so where the specification calls for plated or galvanized steel, we build the frame from it.
Build the frame, coat it, then hang the doors
Rail holes, door patterns, masking, and hardware order are settled before the frame is welded, and the frame, doors, panels, and brackets are coated together so they match.
Review the frame, rails, and accessories
Check the frame, rails, doors, panels, and accessories against each other, and settle hole patterns, purchased hardware, masking, and finish before cutting.
Cut, form, and weld
Cut the rail hole pattern and the frame members, panels, and doors, then form them. Weld the frame and clean the welds, or leave it in parts for bolted assembly.
Install hardware, coat, and assemble
Install clinched nuts, studs, and captive screws before coating, mask bonding points and threads, and powder coat. Then hang the doors, fit panels and managers, and mount casters or feet. Cage nuts ship loose or are set after coating.
Set rail depth from the equipment
Show the deepest unit and its rear connections when choosing the rail positions. Cable managers, PDUs and the closed door consume the same interior space, so the frame layout needs to include them before panels are cut.
The rail attaches to slotted depth supports on the frame. Its position sets the room available in front of and behind the equipment, so the upper and lower attachments must hold the rail in the same plane.
Cabinet inputs
Send the cabinet drawing or model if you have one. If not, the height in rack units, width, depth, welded or bolted, rail hole style, and door type start the quote.
- Cabinet drawing or model
- Frame construction, member type and thickness, material, height in rack units, width, depth, rail standard, hole style, and rail thickness and finish.
- Equipment clearances
- Deepest equipment, rear cable and PDU clearance, and loaded weight and floor type for reference.
- Doors, panels, and airflow
- Door type and open area, hinge side and type, lock or latch part number, side and top panel details, and cable entry locations.
- Accessories and base
- Cable manager and PDU drawings, caster or leveling foot part numbers, bolt-down details, and which hardware K-Display sources.
- Finish, quantities, and delivery
- Coating color, bonding points to keep bare, quantity, delivery date, and assembled or knocked down.