Custom Rolling Door Components
Rolling door components start with the hood that encloses the barrel and coiled curtain of a rolling steel door, also called a coiling door. K-Display forms the hood, end covers, and guide covers in aluminum, carbon steel, galvanized, or galvanneal sheet.
Rolling door hoods, covers, and plates
A rolling door coils its curtain onto a barrel inside the hood, so the hood, end covers, and guide covers are sized to the fully wound curtain. We form those parts in aluminum, carbon steel, galvanized, or galvanneal sheet, cut the plates and brackets that carry them to the wall, install self-clinching fasteners in the covers, and leave the set bare or powder coated.
The column and header covers of high-performance doors are high-performance door components.
Each mounting bracket carries a slot beside its round holes, so the bracket can shift on its fasteners and the hood can be squared to the wall before they are tightened. The orange flange is the face the hood mounts by.
Rolling door parts we make
- Hoods
- Formed hoods sized to the wound curtain, with returned edges and mounting flanges.
- End covers
- Cover plates at each end of the hood, with the hole pattern for the wall bracket.
- Guide covers
- Formed covers that run along the guide beside the wall.
- Mounting plates and brackets
- Plates and brackets that carry the hood and end covers to the wall.
Where a hood can gap, rub, or trap a fastener
- Springback
- Springback opens every bend a little. On a deep flange, that small angle error becomes a gap at the wall or at the end cover.
- Curtain clearance
- The curtain grows toward the hood's inside face as it winds onto the barrel. A hood formed shallow leaves less room than the drawing shows, and the wound curtain rubs it.
- Cover removal
- Covers come off for barrel service. A fastener hidden behind a return cannot be reached, so the cover cannot come off.
Bend order on a long hood
A hood is long, and a return bent early can shut the press brake out of the bends that follow.
Cut
We laser cut the hood blank, end covers, and plates with the hole patterns for the wall brackets.
Form and fit hardware
We form the long flanges first, then the returns, and install self-clinching fasteners.
Mask, coat, and pack
We mask the fastener threads, powder coat the hood and covers, and pack the set by door.
Check the hood around the full roll
As the curtain winds onto the barrel, the roll occupies more of the space inside the hood. An inward return can reduce that space even when the outside cover dimensions look adequate. The end-section shows where that folded edge sits relative to the maximum roll envelope.
Compare the hood’s inside profile with the OEM’s maximum operating envelope in the installed mounting position. Keep the specified clearances between moving parts and fixed metalwork, including the returns. Those clearances come from the door design; the gap shown here is illustrative.
The dashed circle marks the maximum roll envelope; the inward return reduces the hood's available space beside it. Check that folded edge against the operating envelope, not just the cover's outside dimensions.
What to send for a rolling door hood quote
- Hood drawing
- Profile, length, material, thickness, and mounting flange dimensions.
- Roll diameter
- Maximum wound size and the clearance to the hood's inside face.
- Cover and guide drawings
- End cover shapes and guide cover length.
- Fastener list
- Part numbers and sizes for the cover fasteners.
- Finish and volume
- Color, gloss, quantity per door size, and repeat demand.