Custom High-Performance Door Components
Side-column covers, header covers, and access panels are the high-performance door components for high-speed, high-cycle doors, whether the door runs a flexible curtain or rigid panels. K-Display forms them in aluminum, carbon steel, galvanized, or galvanneal sheet.
Column and header covers for high-performance doors
We make the fixed metalwork around a high-performance door: side-column covers over the columns at each side of the opening, header covers over the top, removable access panels, and the brackets that hold sensors. Covers and panels are formed from aluminum, carbon steel, galvanized, or galvanneal sheet, fitted with self-clinching fasteners and latches, and powder coated.
Rolling steel doors, where the curtain coils into a hood, are rolling door components.
The removable cover lifts off the column and exposes the bracket, which fastens to the column rather than to the cover. A sensor on it stays in place while the cover comes off for service.
High-performance door parts we make
- Side-column covers
- Formed covers, in left and right pairs, over the columns at each side of the opening.
- Header covers
- Formed covers over the header at the top of the opening.
- Service access panels
- Removable panels with latches or fasteners, opening where the column or header is serviced.
- Sensor brackets
- Formed brackets that fasten to the column and hold a sensor, with slots for its mounting screws.
Hand, service access, and sensor aim
- Left and right hand
- The two columns are mirror images, so the openings and flanges of their covers are opposite. A cover built to the wrong hand cannot be mounted on the other column.
- Cover removal
- A cover lifts off the column past the frame beside it. A flange or latch that catches the frame keeps the cover on, and the service point behind it stays out of reach.
- Sensor aim
- A sensor aims from the face of its bracket. A face bent a degree off swings the beam across a wide opening, so it misses its receiver on the far column.
Bracket slots masked before the coat
Powder adds film, and a bracket slot that narrows can bind the screw that sets the sensor's aim.
Form the covers and brackets
We laser cut and form the covers, panels, and brackets on the press brake.
Fit hardware
We install self-clinching fasteners and latches on the covers and access panels.
Mask and coat
We mask each sensor bracket's mounting face, slots, and holes, then powder coat the set.
Clear the full moving path
A cover can clear a door panel at rest yet obstruct the hardware that passes it during travel. In a roller-guided rigid-panel door, review the roller and its carrier as part of the moving assembly, rather than checking only the panel face.
The section shows the same assembly at two heights beside a fixed cover return. Keep that return and its attachments outside the OEM-defined travel envelope, including prescribed clearance allowances. Check the intervening path as well as the open and closed positions before releasing the cover geometry.
The dashed boundary includes the roller and carrier, not only the door face. The fixed cover return must stay outside that moving envelope throughout travel, including the clearance specified by the door designer.
What to send for a high-performance door cover quote
- Column and header layout
- Drawings of the columns and header with the cover envelope.
- Door type
- Flexible curtain or rigid panel, and the door model.
- Devices
- Sensor models and the mounting hole spacing.
- Hardware list
- Latch and fastener part numbers and quantity per cover.
- Material, finish, and volume
- Sheet material, color, gloss, count per part number, and repeat demand.