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CL226-4A and CL226-4 dimension drawing offset zinc alloy hinge 180° opening countersunk hole vs M8 stud mounting size specification
CL226-4A black powder coated offset zinc alloy 180 degree industrial hinge with M8 embedded studs staggered panel equipment pivot hinge
CL226-4A and CL226-4 dimension drawing offset zinc alloy hinge 180° opening countersunk hole vs M8 stud mounting size specification
CL226-4A black powder coated offset zinc alloy 180 degree industrial hinge with M8 embedded studs staggered panel equipment pivot hinge

CL226-4A (M8 Embedded Stud) & CL226-4 (Countersunk Hole) 90×60mm Offset Zinc Alloy 180° Heavy-Duty Industrial Cabinet Hinge

CL226-4A (M8 stud) & CL226-4 (countersunk hole) offset zinc alloy 180° black heavy duty industrial cabinet hinges.

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CL226-4A (M8 Embedded Stud) & CL226-4 (Countersunk Hole) 90×60mm Offset Zinc Alloy 180° Heavy-Duty Industrial Cabinet Hinge

Full Technical Specifications

Shared General Parameters

  • Maximum Opening Angle: 180 degrees
  • Material: High-pressure die-cast zinc alloy body, Φ8 solid carbon steel rotation pin
  • Surface Treatment: Black powder coating (anti-corrosion, scratch-resistant, oil-proof)
  • Overall Outer Size: Total length 90mm, width 60mm, thickness 8mm
  • Structural Feature: Offset staggered eccentric design for stepped installation

Two Model Classification Table

Core Product Features & Advantages

2.1 Unique Offset Eccentric Die-Cast Zinc Alloy Structure

Special offset bending layout solves the installation limitation of stepped, staggered and overlapping cabinet panels that standard straight hinges cannot adapt to. Integrated zinc alloy die-casting provides high mechanical strength, strong impact resistance and anti-deformation performance, suitable for heavy industrial door load-bearing.

2.2 Protective Matte Black Powder Coating

Uniform powder coating forms a dense protective film on the zinc alloy surface, effectively blocking moisture, dust, workshop oil mist and slight chemical splashes to prevent oxidation and rust. The matte industrial texture is wear-resistant, easy to wipe and maintain for long-term factory operation.

2.3 Φ8 Thickened Solid Steel Rotation Pin

Large-diameter solid steel central pin with precision fit tolerance minimizes rotational clearance and shaking. Low friction operation avoids hinge loosening, gap expansion and sagging after tens of thousands of opening cycles, greatly prolonging service lifespan.

2.4 180° Full Flat Opening Function

180-degree maximum opening allows the equipment door to fully flip flat to the side of the frame, completely avoiding blocking during internal wiring overhaul, component replacement, equipment debugging and daily cleaning work.

2.5 Dual Installation Solutions for Different Working Conditions

  1. CL226-4A M8 Embedded Stud Version Two protruding M8 threaded posts on the rear side. Only need to drill through holes on thick metal frames or hollow enclosure walls, thread studs through and lock with nuts on the reverse side. Simplify batch assembly process with high installation efficiency.
  2. CL226-4 Countersunk Hole Version Four standard 90° countersunk recesses enable flat head screws to fully sink into the hinge surface for seamless flush mounting. No protruding hardware on the exterior, tidy and streamlined appearance, perfect for conventional solid sheet metal enclosures.

Wide Application Scenarios

  1. Staggered electrical control cabinets, stepped low-voltage distribution boxes, inverter and PLC equipment housings
  2. CNC machine tool offset protective doors, automation equipment stepped frames, industrial testing bench casings
  3. Outdoor communication staggered cabinets, energy storage battery boxes, waterproof monitoring stepped enclosures
  4. Large instrument testing equipment panels, environmental monitoring control boxes, heavy industrial sheet metal tool cabinets
  5. Medical analytical device housings, laboratory large test equipment doors and special-shaped mechanical access panels

Installation Steps & Maintenance Guidelines

4.1 CL226-4A (M8 Stud Model) Installation Steps

  1. Drill two matched through holes on the stepped cabinet panel for M8 studs to pass through
  2. Insert embedded M8 bolts from the front face of the enclosure
  3. Assemble gaskets and lock nuts tightly on the backside
  4. Test 180° opening flexibility and overall hinge stability

4.2 CL226-4 (Countersunk Hole Model) Installation Steps

  1. Mark four hole positions accurately, drill Φ8.4 holes and process 90° countersunk sink holes
  2. Attach the hinge flat against the panel and fasten with M8 flat head screws
  3. Verify door rotation smoothness and load balance condition

4.3 Installation Quantity Suggestion

  • Door height ≤ 700mm: Install 2 hinges symmetrically
  • Door height 700–1200mm or heavy steel door: Install 3 hinges to prevent deflection and sagging

4.4 Maintenance Precautions

❌ Not applicable for long-term use in strong acid/alkali corrosive workshops, coastal high salt fog and severe chemical vapor environments.

  1. Regularly clean the black coated surface to remove metal debris and greasy dirt
  2. Add a small amount of dry lubricant to the central steel pin every 6 months to keep rotation smooth and quiet

Product Summary

CL226-4 series are 90×60mm offset eccentric 180-degree opening zinc alloy industrial hinges, split into CL226-4A (M8 embedded threaded studs) and CL226-4 (four countersunk flush holes) two mounting versions. Featuring exclusive offset structure for stepped panel installation, high-strength die-cast zinc alloy body, anti-rust black powder coating and thickened wear-resistant steel pivot pin, it realizes stable heavy load bearing and full flat opening, becoming dedicated standard hardware for staggered electrical cabinets, special-shaped machinery enclosures and stepped industrial equipment doors.

CL226-4A M8 embedded stud offset zinc alloy hinge CL226-4 countersunk hole black powder coated 180 degree offset heavy duty industrial cabinet hinge