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Cleanroom Equipment Spare Parts
Pass Box Door Hinge
A robust stainless-steel butt hinge that supports repeated pass box door movement while maintaining stable panel alignment.
- Satin Stainless Construction
- Eight-Point Mounting
- Full-Length Hinge Pin
- Stable Door Alignment
Product Introduction
The pass box door hinge connects the transfer-chamber door leaf to its frame and carries repeated opening loads without introducing excessive play. Two machined stainless leaves, eight countersunk fixing points and a continuous pin distribute load along the joint. The satin surface is suitable for routine wipe-down, while the compact butt-hinge geometry fits flush chamber construction. Replacement selection should match leaf dimensions, hole centers, pin axis, door weight, opening angle and the existing frame reinforcement.
Key Features
Eight countersunk holes allow flush fastener seating without protruding heads.
A continuous pin maintains a consistent pivot axis through repeated operating cycles.
Satin stainless surfaces resist routine cleaning exposure and match pass box interiors.
Customer Product Concerns
A replacement hinge must match the existing pivot line and fixing pattern to prevent sagging, rubbing or loss of gasket compression.
A shifted pivot axis causes the door edge to rub the frame.Leaf width, barrel offset and mounting position are matched to the original hinge centerline.
Insufficient fixing support allows the hinge screws to loosen under door weight.Eight countersunk locations spread the load into suitable frame and door reinforcement.
Pin wear creates door play and inconsistent gasket compression.A close-fitting full-length stainless pin provides a stable bearing axis and replaceable service point.
Rough or corroded hardware is difficult to clean in the transfer area.Smooth satin stainless leaves and barrel provide a durable wipe-clean exposed finish.
Typical Applications
Static pass box doorsDynamic pass-through chamber doorsMaterial transfer hatch repairsStainless cleanroom cabinet doors
Technical Parameters
Typical material and dimensional ranges for stainless pass box butt hinges are shown below.
| Core Material | Austenitic stainless-steel leaves, barrel and hinge pin |
|---|---|
| Panel Thickness | 3-6 mm nominal hinge-leaf thickness |
| Effective Width | 80-160 mm overall open hinge width |
| Maximum Length | Up to 240 mm hinge height |
| Steel Facing Thickness | 3-6 mm stainless-steel leaf thickness |
| Core Density | 7900-8000 kg/m³ for stainless-steel components |
| Thermal Conductivity | 14-16 W/(m·K) for austenitic stainless steel |
| Surface Finish | Fine satin brushed stainless steel with deburred edges |
| Joint Type | Two-leaf butt hinge with central knuckle barrel, continuous pin and countersunk fixing holes |
| Customization | Available based on the intended application and operating environment. |
Available Options
Alternative leaf width and heightCustom countersunk hole centersRemovable or retained pinPolished or satin surface finish
Planning a Pass Box Door Hinge specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
