CL244-2 Steel 120° Detachable Concealed Male-Female Hinge with Black Powder Coating & White Zinc Plating

Full Technical Specifications

Model Number: CL244-2
Maximum Opening Angle: 120°
Material: Solid steel (entire hinge body and pivot pin)
Surface Treatment:
- Female hinge: Black powder coating (scratch-resistant, anti-corrosion, dust-proof)
- Male hinge & pin: White zinc plating (rust-proof, wear-resistant)
Pivot Pin Diameter: Φ6mm
Female Hinge Dimensions: 65mm length × 62mm width × 18mm height
Male Hinge Dimensions: 45mm length × 25mm height
Female Hinge Mounting: 2 pieces Φ6.5 holes with Φ11 counterbore, center distance 45mm (inner 35mm)
Male Hinge Mounting: 2 pieces M6 threaded holes, center distance 20mm (total width 45mm)
Side Profile Dimensions: 26mm total height, 24mm depth, 22.5mm top width
Core Structure: Concealed detachable male-female lift-off design

Core Product Features & Advantages

1 Detachable Concealed Male-Female Structure for Tool-Free Door Removal

The unique hidden separable design allows the entire cabinet door to be lifted off and completely detached in seconds without loosening any screws or using tools. The concealed profile keeps the hinge largely hidden from view when the door is closed, providing a clean and streamlined enclosure appearance while dramatically improving efficiency during cabinet transportation, on-site assembly, internal wiring inspection and component replacement.

2 Solid Steel Construction with Dual Finish Treatment

The entire hinge is fabricated from robust solid steel for excellent structural rigidity, impact resistance and load-bearing capacity. The dual-finish treatment combines black powder coating on the female half (superior scratch and corrosion resistance with professional industrial appearance) and white zinc plating on the male half and pin (effective rust prevention and low-friction rotation), delivering comprehensive protection for long-term reliable performance.

3 120° Controlled Opening Angle

The 120-degree maximum opening angle is engineered to provide sufficient access for internal operations while preventing the door from over-rotating and colliding with adjacent equipment, walls or operators. This controlled opening range is ideal for standard electrical cabinets and industrial equipment enclosures where full 180° opening is not required or may cause interference.

4 Dual Independent Mounting Configurations

The female hinge features 2×Φ6.5 through holes with Φ11 counterbores (45mm center spacing) for flush screw installation on the cabinet frame, while the male hinge has 2×M6 threaded holes (20mm center spacing) for direct bolt mounting on the door panel. This independent configuration allows flexible alignment and secure fixation on both components, accommodating various sheet metal thicknesses.

5 Φ6 Solid Steel Pivot Pin for Stable Rotation

The Φ6 solid steel pivot pin with white zinc plating ensures tight assembly clearance, low-friction rotation and high wear resistance. Precision machining maintains smooth wobble-free operation over tens of thousands of open-close cycles, preventing hinge play, gap enlargement and door sagging.

6 Compact Concealed Profile for Clean Installation

The compact concealed design minimizes visible hardware on the cabinet exterior, creating a neat and professional appearance. The side profile (26mm height × 24mm depth) fits within standard cabinet door frame recesses, making it suitable for applications where aesthetic cleanliness is important.

Application Fields

Electrical control cabinets, low-voltage distribution boxes, frequency converter enclosures and PLC equipment housings
Automation equipment protective doors, industrial test bench casings and machinery access panels
Communication equipment cabinets, indoor server boxes and signal transfer enclosures
Sheet metal tool cabinets, instrument test equipment casings and industrial console doors
Medical equipment housings, laboratory analytical instruments and environmental monitoring control boxes
Aluminum profile industrial frames, mechanical equipment maintenance hatches and test fixtures
Applications requiring hidden hinge appearance and frequent door removal for maintenance

Installation & Maintenance Guidelines

Step-by-Step Installation Procedures

Determine the installation positions on both the cabinet frame and door panel according to the dimension drawing
On the cabinet frame: mark and drill 2×Φ6.5 holes with Φ11 counterbores at 45mm center spacing for the female hinge, then fasten with M6 flat head screws for flush installation
On the door panel: align the male hinge and mark 2×M6 mounting positions at 20mm center spacing, then fasten with M6 bolts through the door panel into the threaded holes
Align the male hinge pin with the female hinge socket, then lower the door panel to engage the two halves
Test the 120° opening movement for smooth rotation and verify the lift-off detachment function
Confirm that the door closes properly and the hinge remains concealed when shut

Installation Quantity Recommendation

Door height ≤600mm: Install 2 hinges symmetrically
Door height 600mm to 1000mm or medium-weight steel door: Install 3 hinges for balanced load distribution

Maintenance Instructions

Suitable for indoor and mildly corrosive environments; not recommended for long-term outdoor exposure, high-humidity areas, coastal salt spray or severe chemical vapor conditions
Wipe the black powder coated and white zinc plated surfaces periodically with a soft dry cloth to remove dust, grease and moisture
Apply a small amount of dry lubricant to the Φ6 pivot pin and male-female engagement area every six months to maintain smooth rotation and easy lift-off
Check mounting screw and bolt tightness quarterly to prevent loosening from vibration
Inspect the powder coating annually for chips or scratches; touch up with matching black paint if necessary to maintain corrosion protection

Product Summary

CL244-2 is a solid steel 120° detachable concealed male-female hinge featuring black powder coating on the female half and white zinc plating on the male half and pivot pin. Its tool-free door detachment function, hidden installation profile, controlled 120° opening and dual independent mounting configurations make it a reliable and efficient hardware solution for electrical control cabinets, automation equipment enclosures, industrial machinery and various applications requiring a clean concealed appearance combined with convenient maintenance access.

CL244-2 steel detachable concealed hinge 120 degree black powder coated white zinc plated male female pin industrial cabinet equipment hinge