CL203-2 Zinc Alloy 180° Lift-Off Detachable Industrial Cabinet Hinge

CL203-2 is a vertical split lift-off removable hinge designed for industrial enclosures and mechanical equipment doors. It is integrally die-cast from high-strength zinc alloy with built-in PA nylon gaskets to eliminate metal friction noise and reduce pivot abrasion. The entire surface is treated with durable black electrostatic powder coating. It supports 180° flat full opening and adopts 4 embedded M5 internal threaded holes for concealed screw installation, realizing neat and hidden assembly while enabling quick door detachment by upward lifting without any tool disassembly.

Complete Technical Specifications

• Model No.: CL203-2
• Main Body Material: Die-cast Zinc Alloy
• Auxiliary Part: PA Nylon Anti-friction & Shock-absorbing Gasket
• Surface Finish: Black Powder Coating (Electrostatic Spraying)
• Maximum Opening Angle: 180° full flat opening
• Overall Size: Total length 64mm, width 15mm, thickness 17.5mm
• Mounting Method: 4 built-in M5 internal threaded holes (4-M5)
• Structure Type: Vertical split lift-off detachable hinge, non-left/right hand universal design

1. Universal Split Lift-off Detachable Structure

Different from CL203-1 L/R paired version, CL203-2 is a universal single model without left and right distinction, greatly simplifying inventory management and model selection for buyers. The split pin core allows the cabinet door to be directly lifted and separated from the frame, ideal for frequent disassembly scenarios such as equipment overhaul, internal wiring modification and cabinet deep cleaning.

2. 4 Built-in M5 Threaded Holes for Concealed Installation

Four internal pre-tapped M5 threaded holes are reserved on the hinge base, screws are fastened from the inner side of the cabinet panel. No screw heads exposed on the outer surface of the door, keeping the equipment exterior flat, tidy and aesthetic, avoiding scratch risks caused by protruding fasteners. The 4-point fixing structure disperses bearing force evenly, effectively preventing door sagging and hinge loosening under long-term frequent switching.

3. Zinc Alloy Body + PA Nylon Gasket Composite Design

• Zinc alloy die-cast housing: High structural rigidity, strong impact resistance and stable dimensional accuracy, suitable for medium-weight metal cabinet doors.
• Embedded PA nylon gasket: Buffers rigid metal contact, lowers opening and closing decibel noise, relieves pivot wear and vibration during door closing, significantly prolongs the hinge service life.

4. Robust Black Powder Coating Surface Treatment

Electrostatic powder spraying forms a dense protective film on the zinc alloy surface, featuring excellent scratch resistance, anti-rust performance and chemical corrosion resistance compared with ordinary paint. The matte black low-key industrial appearance matches most control cabinets, instrument housings and automation devices, resistant to fingerprints and daily mechanical abrasion.

5. 180° Full Flat Wide Opening

180-degree maximum opening angle lets the cabinet door flip completely flat against the side wall of the box, fully exposing internal circuit components, wiring terminals and breakers. Technicians can operate in a spacious environment without space obstruction, improving maintenance and debugging efficiency.

Core Selling Points

1. Universal Single Model, No L/R Classification One model fits both left and right opening doors, reduces SKU quantity and inventory cost.
2. Tool-Free Lift-off Quick Disassembly Lift the door upward directly to separate the two halves for easy equipment maintenance.
3. 4 Internal M5 Threaded Holes Concealed Mounting Hidden screw installation for clean outer panel appearance, stable 4-point load bearing.
4. Zinc Alloy + PA Gasket Noise Reduction System Smooth silent rotation, anti-wear and vibration damping for long-term use.
5. 180° Full Opening & Durable Black Powder Coating Maximize internal operating space, scratch and corrosion resistant industrial finish.

Application Scope

1. Low-voltage distribution boxes, PLC control cabinets, inverter and automation equipment enclosures
2. Test instruments, analytical equipment, laboratory precision device protective casings
3. Network cabinets, communication terminal boxes, energy storage battery equipment housings
4. Mechanical equipment safety protection doors, workshop industrial tool lockers
5. Medical equipment casings, outdoor indoor small electrical control boxes

Installation & Selection Instructions

1. Load Suggestion: For doors longer than 500mm or heavy steel panels, install two CL203-2 hinges symmetrically to share weight.
2. Screw Matching: Use standard M5 machine screws for fastening into the reserved internal threaded holes.
3. Environment Limit: Zinc alloy powder coated version is applicable to dry indoor environments; select stainless steel lift-off hinges for humid, coastal or corrosive workshops.
4. Routine Maintenance: Apply a little lubricating grease to the split pivot regularly to maintain smooth lifting and rotation.
5. Opening Clearance Confirmation: Reserve enough side gap before bulk order to avoid collision during 180° full opening.

Product Summary

CL203-2 universal lift-off detachable hinge is a cost-effective hidden installation hinging solution for industrial cabinets. With universal non-left-right design, 4 built-in M5 concealed threaded holes, zinc alloy main body with PA noise-reducing gaskets and 180° full opening capability, it solves the pain points of difficult door disassembly and messy exposed screws, becoming a preferred standard hardware for enclosure manufacturers pursuing concise appearance and convenient after-sales maintenance.

CL203-2 zinc alloy black powder coat 180 degree lift off detachable hinge with PA gasket 4-M5 threaded holes