CL211-1A 58mm Zinc Alloy Matte Black Powder Coated Lift-Off Detachable Hinge with Curved Steel Pivot Pin

Full Technical Specifications

• Model Number: CL211-1A
• Material Composition: High-pressure die-cast zinc alloy housing + solid curved steel pivot pin
• Surface Treatment: Electrostatic black powder coating
• Overall Outer Size: 58mm (Length) × 18mm (Height)
• Mounting Holes: 2 × Φ6.5 holes with Φ11 90° countersunk sink holes
• Hole Center Distance: 34.5mm
• Total Base Width: 49.5mm
• Core Feature: Curved hook-style lift-off steel pin for quick door detachment

Core Product Features & Competitive Advantages

2.1 Curved Hook Lift-Off Pin for Tool-Free Door Removal

Adopts specially bent curved steel spindle design, directly lift the cabinet door upward to separate from the frame without unscrewing any fasteners. Greatly accelerates equipment internal overhaul, wiring maintenance, on-site door replacement and factory batch assembly efficiency. The hook structure prevents accidental pop-off during normal closing and opening.

2.2 High-Strength Steel Rotating Pin for Long Service Life

Central shaft is made of solid machined steel, far better in hardness, wear resistance and anti-shear performance than zinc alloy pins. It withstands thousands of repeated opening cycles, effectively avoiding pin deformation, loosening, rust and rotation jamming, stable for heavy metal cabinet doors.

2.3 Tough Matte Black Powder Coating Protection

Electrostatic powder spraying creates a thick, rigid protective layer on the zinc alloy substrate. Superior to chrome plating in scratch resistance, impact resistance and fading resistance. The low-gloss industrial matte black appearance resists fingerprints, oil stains and slight indoor moisture oxidation, maintaining neat appearance for years.

2.4 Standard Countersunk Flush Mount Structure

Two standard 90° countersunk holes allow flat head screws to fully sink into the hinge base, keeping the installation plane flat and flush. No protruding obstacles to interfere with door closing stroke or internal cabinet component layout, clean and compact assembly effect.

2.5 Compact Integrated Die-Cast Body

One-piece zinc alloy die-casting ensures high dimensional accuracy and structural rigidity. Overall 58mm compact footprint occupies minimal installation space, perfectly matches standard folded-edge thin sheet metal cabinet frames widely adopted in the automation and electrical industry.

Main Application Scenarios

1. Indoor electrical distribution boxes, PLC control cabinets, inverter and terminal wiring enclosures
2. Industrial automation equipment housings, testing instruments, inspection and laboratory protective casings
3. Network communication cabinets, industrial switch boxes, server maintenance access panels
4. Devices requiring frequent door disassembly for circuit modification, component replacement and deep cleaning
5. Mass standardized sheet metal cabinet projects demanding detachable hinge structure and black industrial appearance

Selection & Installation Operation Guide

4.1 Installation Steps

1. Mark drilling positions on the cabinet fixed frame according to 34.5mm hole center spacing.
2. Drill holes and fasten the hinge base with flat head screws into the 90° countersunk holes for flush mounting.
3. Align the door leaf with the curved steel hook pin, press down to lock the hinge in working state.
4. Test normal opening/closing and upward lifting detachment function to confirm smooth operation.

4.2 Installation Quantity Suggestion

For cabinet door height ≤ 500mm, install 2 sets of CL211-1A hinges symmetrically; add a third hinge in the middle for taller or heavier door panels to balance load and prevent sagging.

4.3 Maintenance Reminders

This hinge is designed for dry indoor working environments only, prohibit use in high humidity, corrosive vapor, severe dust workshops. Wipe the powder coated surface with dry cloth regularly; apply a tiny amount of anti-rust lubricant on the steel curved pin to keep lifting and rotation smooth.

Product Summary

CL211-1A is a practical hook-type lift-off detachable cabinet hinge, constructed with die-cast zinc alloy body, wear-resistant curved steel pin and durable matte black powder coating. With 58mm standard overall size and two countersunk flush mounting holes, it realizes convenient tool-free door disassembly, serving as a reliable standardized hardware solution for industrial electrical enclosures, automation equipment and sheet metal instrument boxes.

CL211-1A zinc alloy black powder coat lift off hinge steel pivot pin 58mm length countersunk hole removable industrial sheet metal enclosure hinge