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CL225-3 zinc plated steel spring loaded drop pin barrel hinge left right hand detachable industrial cabinet lift off hinge
CL225-3 technical dimension drawing spring rebound removable hinge with 2-Φ5.2 mounting hole specification
CL225-3 zinc plated steel spring loaded drop pin barrel hinge left right hand detachable industrial cabinet lift off hinge
CL225-3 technical dimension drawing spring rebound removable hinge with 2-Φ5.2 mounting hole specification

CL225-3 85mm Zinc Plated Steel Spring Loaded Drop Pin Detachable Barrel Hinge, Left & Right Hand Versions Available

CL225-3 steel spring drop pin hinge, zinc plated, left/right handed, spring loaded lift-off heavy cabinet barrel hinge.

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CL225-3 85mm Zinc Plated Steel Spring Loaded Drop Pin Detachable Barrel Hinge, Left & Right Hand Versions Available

Complete Technical Specifications

  • Model No.: CL225-3
  • Material: Cold rolled carbon steel, base plate thickness t=2mm, locating pin diameter Φ5mm
  • Surface Finish: Electroplated zinc coating (anti-rust, anti-oxidation, wear-resistant)
  • Overall Dimensions: Total height 85mm, width 17.5mm
  • Mounting Holes: 2 pieces Φ5.2 through holes, vertical hole spacing 45mm
  • Tapered Pin Diameter: Φ5mm spring drop pin
  • Model Classification Table

Core Product Features & Advantages

2.1 Thickened All-Steel Heavy-Duty Structure

Whole body stamped from 2mm thick solid steel plate with Φ5mm solid steel locating pin. High structural rigidity, strong shear resistance and load-bearing capacity, effectively bear the weight of medium-sized metal cabinet doors, not easy to deform or fracture under long-term frequent opening and closing.

2.2 Zinc Plating Anti-Corrosion Protective Layer

Uniform zinc electroplated coating isolates air, moisture and dust, greatly slowing down rust and oxidation. Stable performance in indoor factory workshops and slightly humid semi-outdoor environments, extend the service life of cabinet hardware and reduce maintenance costs.

2.3 Built-In Compression Spring Automatic Locking

The internal high-strength compression spring continuously provides upward tension to lock the drop pin in place automatically after installation. Avoid accidental pin ejection during door swing, prevent cabinet door from falling off and greatly improve equipment safety.

2.4 Pre-Drilled Φ5.2 Holes for Convenient Screw Installation

Fixed leaf is pre-opened with two standard Φ5.2 mounting holes, directly fixed with machine bolts without welding operations. Simplify assembly procedures for batch production lines, easy for later disassembly, overhaul and spare parts replacement.

2.5 Independent Left & Right Hand Directional Matching

Two directional versions for selection: Left hinge CL225-3-Z and Right hinge CL225-3-Y. Match according to the cabinet door opening direction, perfectly fit single door, double door and side flip industrial protective enclosures.

2.6 Tool-Free Rapid Lift-Off Disassembly

Press the spring down to retract the tapered Φ5 locating pin, then lift the cabinet door upward to completely separate it without any tools. Significantly improve the efficiency of internal circuit inspection, equipment maintenance and cabinet packaging & logistics transportation.

Wide Application Scenarios

  1. Electrical control cabinets, low-voltage distribution boxes, frequency converter casings and PLC power equipment protective doors
  2. CNC machine tool safety guards, mechanical equipment outer shells, automation production line protective covers
  3. Network server cabinets, weak current integrated boxes, outdoor charging pile control enclosures
  4. Double-door sheet metal cabinets, large instrument test equipment housings, communication equipment chassis
  5. Industrial equipment that needs frequent door removal for internal overhaul and component replacement

Installation & Maintenance Guidelines

4.1 Step-by-Step Installation

  1. Confirm door opening direction and select CL225-3-Z (Left) or CL225-3-Y (Right)
  2. Mark 45mm vertical hole center distance on the cabinet frame, drill Φ5.2 holes
  3. Fasten the fixed plate firmly with bolts, compress the spring and insert the Φ5 locating pin into the barrel
  4. Test door rotation smoothness, check spring locking stability and effortless lift-off function

4.2 Installation Quantity Suggestion

  • Door height ≤ 650mm: Install 2 hinges symmetrically
  • Door height 650–1100mm or heavy steel door: Install 3 hinges to prevent sagging and balance load

4.3 Maintenance Precautions

❌ Not recommended for long-term use in strong acid/alkali corrosive gas, severe dust workshops and coastal salt fog areas.

  1. Wipe the zinc-plated surface regularly with dry soft cloth to keep clean
  2. Apply anti-rust grease to the spring and pin moving joint every 3–6 months to guarantee flexible rebound and sliding

Product Summary

CL225-3 is a heavy-duty spring loaded drop pin detachable barrel hinge manufactured with 2mm thick full carbon steel and durable zinc anti-corrosion plating. It supports left and right hand selection, screw-on hole mounting and spring self-locking mechanism, realizing tool-free quick door detachment. With outstanding load capacity and anti-rust performance, it is a reliable standardized hardware fitting for medium-sized industrial electrical cabinets, machine safety guards and various sheet metal equipment enclosures.

CL225-3 spring loaded lift off hinge zinc plated steel drop pin barrel hinge left right detachable cabinet hinge 2-Φ5.2 mounting holes