CL231-1 80mm Zinc Alloy 180° Detachable Lift-off Split Hinge with Bright Chrome Plating

1. Complete Technical Parameters

• Model No.: CL231-1
• Overall Length: 80mm, effective mounting hole span: 68mm
• Height: 23mm, width:14.5mm
• Max Opening Angle: 180°
• Main Material: Die-cast Zinc Alloy Body + Φ6 Nickel-Plated Solid Steel Pin
• Surface Treatment: Body bright chrome plated, hinge pin nickel plated
• Mounting Holes: 4 pcs Φ4.2 holes with Φ8×90° countersunk counterbore
• Core Structure: Split separable lift-off hinge (door can be fully detached)

2. Core Product Advantages

2.1 High-Strength Die-Cast Zinc Alloy + Glossy Chrome Plating

Integrated one-time high-pressure zinc alloy die casting ensures stable structural rigidity and strong load capacity. Bright chrome electroplating forms a dense protective layer, effectively resisting oxidation, fingerprint and surface abrasion, with mirror-like decorative appearance for indoor equipment cabinets.

2.2 Detachable Lift-off Split Hinge Structure

Independent separable pin design enables the entire cabinet door to be lifted off directly without disassembling the hinge base. Greatly facilitates cabinet batch transportation, on-site assembly, internal wiring overhaul and component replacement, significantly improving after-sales maintenance efficiency.

2.3 Nickel-Plated Solid Steel Rotation Pin

Φ6 solid steel pin processed with nickel plating enhances wear resistance and rust-proof ability. Precision fit clearance guarantees wobble-free, low-friction rotation for tens of thousands of opening cycles, avoiding loose hinge play and door sagging in long-term use.

2.4 Countersunk Holes for Flush Hidden Installation

Four standard 90° stepped countersunk holes let flat head screws sink completely inside the hinge plate. No protruding fasteners on cabinet surface, tidy and streamlined enclosure appearance, also prevents screw collision and scratch damage.

2.5 180° Full Flat Opening Angle

180-degree maximum outward turnover allows the door to lay fully flat beside the cabinet frame, eliminating operation blind spots, convenient for large equipment access, internal inspection and wiring arrangement.

3. Application Scope

1. Indoor electrical control cabinets, frequency converter boxes, PLC enclosures and terminal distribution boxes
2. Automation equipment protective covers, industrial test bench casings, machine tool auxiliary access doors
3. Laboratory testing instruments, medical equipment housings, portable detection device shells
4. Aluminum profile frame cabinets, office industrial equipment boxes, communication indoor server cabinets
5. General mechanical equipment maintenance hatches, light-duty sheet metal cabinet doors

4. Installation & Maintenance Guidelines

Installation Steps

1. Mark hole positions per dimension drawing, drill Φ4.2 through holes and machine 90° counterbores
2. Fit CL231-1 hinge flat on cabinet mounting surface
3. Fasten with M4 flat head screws for fully hidden flush fixation
4. Hang door panel onto the hinge pin, test 180° opening and lift-off detachment function
5. Recheck screw tightness to prevent loosening from vibration

Installation Quantity Suggestion

• Door height ≤600mm: 2 hinges symmetrically installed
• Door height 600–1000mm: 3 hinges for balanced load bearing

Maintenance Notes

1. Only apply to dry indoor environment, avoid long-term damp, corrosive gas and outdoor rain exposure
2. Regularly wipe chrome-plated surface with dry cloth to remove dust and fingerprints
3. Add a small amount of dry lubricant on the steel rotation pin every 6 months for quieter and smoother movement

5. Product Summary

CL231-1 is an 80mm elongated zinc alloy 180° lift-off removable split hinge with bright chrome decorative plating and nickel-plated wear-resistant steel pin. Featuring detachable door disassembly function and countersunk hidden flush mounting, it is a cost-effective standard hardware widely used for indoor industrial control cabinets, automation equipment and instrument enclosure access doors.

CL231-1 zinc alloy lift off hinge 80mm bright chrome plated 180 degree removable split hinge 4 countersunk holes cabinet equipment hinge