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CH‑45‑HB4 4.5 Inch Heavy‑Duty 4‑Ball‑Bearing Commercial Butt Hinge
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SURFACE FINISHES
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SPEC NOTE
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Product Description
CH‑45‑HB4 4.5 Inch Heavy‑Duty 4‑Ball‑Bearing Commercial Butt Hinge, 4‑1/2" ×4‑1/2" ×3.0mm square‑corner cold‑rolled steel butt hinge. Four sets of ball‑bearing assemblies inside knuckle, delivering ultra‑smooth, low‑friction rotation for high‑traffic heavy‑weight doors. Designed for high‑cycle commercial and institutional dry‑use door applications.
Installation recommendation: Minimum 2 pieces per heavy commercial door.
Installation recommendation: Minimum 2 pieces per heavy commercial door.
Specification & Dimension Table
| Model No. | Dimension (H × W × T) | Leaf Corner | Bearing Type | Rated Door Weight |
|---|---|---|---|---|
| CH‑45‑HB4 | 4.5" × 4.5" × 3.0mm | Square‑Corner | 4‑Ball‑Bearing | 60‑70Kgs |
Load‑Rating Recommendation
3.0mm heavy leaf thickness: 60‑70Kgs door weight rating
Installation advice: 2‑3 pieces per heavy‑duty commercial door
For dry indoor / sheltered light‑exterior application; not for continuously humid locations
Finish Explanation
| Code | Full Finish Name | Process Description |
|---|---|---|
| SC | Satin Chrome Plated | Cold‑rolled steel substrate, satin chrome electroplated finish |
| SN | Satin Nickel Plated | Cold‑rolled steel substrate, satin nickel electroplated finish |
| MB | Matte Black Plated | Cold‑rolled steel substrate, matte black electroplated finish |
| US10B | Oil‑Rubbed Bronze US10B | Cold‑rolled steel substrate, antique oil‑rubbed bronze electroplated US standard finish |
Application Scenarios
High‑traffic institutional & commercial heavy‑weight wooden entry doors
Schools, hospitals, retail malls, office main passage doors
Projects requiring long‑service‑life, quiet low‑wear hinge performance
Product Advantages
Four Ball‑Bearing Knuckle‑Multi‑set ball bearing structure, smooth silent rotation, lower wear for frequent opening cycles.
Heavy‑Gauge 3.0mm Leaf‑High rigidity for heavy‑weight commercial doors.
Square‑Corner 4.5" US Commercial Size‑Matches standard commercial door prep dimensions.
Cold‑Rolled Steel Base‑High structural strength, multiple electroplated finish options.
OEM Acceptable‑Custom logo & bulk‑order special packing available.
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