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Cranked Offset Butt Hinge CK1‑Series (Rebated Door Hinge)
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Product Description
CK1‑Series Cranked Offset Butt Hinge, specially designed for rebated door set‑back installation. Cranked offset leaf structure enables proper door closing for rebated door frames. 5‑knuckle heavy‑duty butt hinge construction, 3.0mm leaf thickness, load capacity 60‑80Kgs. Available in 3.5"×3.0" and 4.0"×3.0" sizes. Multiple stainless steel grades & finishes for commercial architectural door projects. Recommend 3 pieces per door.
Specification & Dimension Table
| Model No. | Dimension (H × W × T) |
|---|
Load‑Rating Recommendation
3.0mm Thickness Hinges: 60 ~ 80Kgs Per Door
Recommendation: 3 pieces per door
Material Grade Application Scope
| Material Grade | Application Environment |
|---|---|
| SUS201 | Cost‑effective, indoor dry‑area commercial projects. |
| SUS304 | General anti‑corrosion for hotel, office, public building, indoor & mild outdoor environment. |
| SUS316 | Marine‑grade, coastal high‑salt‑humidity harsh environment. |
Application Scenarios
Rebated / offset‑set‑back commercial swing doors
Office, hotel, education building interior door systems
Public architectural rebated door assemblies
Coastal‑area projects when SUS316 material selected
Product Advantages
Cranked Offset Leaf Design: Optimized geometry for rebated door frame installation, solves offset‑set‑back door closing clearance issue.
5‑Knuckle Butt Hinge Structure: Stable load distribution, smooth silent door swing performance.
US‑standard inch‑size footprint: 3.5"×3.0" / 4.0"×3.0", 3.0mm thick leaf for heavy‑door load‑bearing.
Multiple stainless steel grades optional: SUS201 / SUS304 / SUS316 for different anti‑corrosion requirement.
Clear engineering load‑rating reference: 60‑80Kgs per door, 3‑hinge installation suggestion for project quotation.
Six surface finish options: SS, PSS, BP, GP, AB, AC to match various door hardware aesthetic requirements.
OEM available: Custom logo engraving & special packing for bulk order.
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