CL282-2 Zinc Alloy Black Powder Coated 180° Adjustable Heavy-Duty Hinge — Left Hand (CL282-2-Z) / Right Hand (CL282-2-Y)

Full Technical Specifications

• Model Variants:
  • CL282-2-Z: Left-hand hinge (for left-side door swing)
  • CL282-2-Y: Right-hand hinge (for right-side door swing)
• Hinge Body Material: High-pressure die-cast zinc alloy
• Pivot Pin Material: SUS304 stainless steel
• Surface Finish: Black powder coating (wear-resistant, corrosion-resistant, matte black industrial appearance)
• Maximum Opening Angle: 180°
• Overall Dimensions: 61mm total width × 85mm height
• Main Body Height: 70mm
• Adjustability: 5.3mm adjustable range for precise door alignment
• Mounting Holes: 4 pieces Φ6.2 through holes with Φ12×90° countersunk counterbores
• Side Profile: 25mm width × 21.3mm height, 14mm, 5mm leaf thickness
• Offset Design: 18mm + 11mm offset configuration
• Vertical Dimensions: 33mm, 30mm, 45mm hole spacing
• Core Features: Heavy-duty zinc alloy construction, SUS304 corrosion-resistant pin, 5.3mm adjustability, black powder coat finish, left/right hand variants, countersunk flush mounting, 180° full opening, offset design

Core Product Features & Advantages

1 High-Pressure Die-Cast Zinc Alloy Heavy-Duty Construction

The hinge body is manufactured from high-pressure die-cast zinc alloy, providing exceptional structural rigidity, impact resistance and heavy load-bearing capacity. The zinc alloy construction offers a good balance of strength and weight, ensuring reliable performance under heavy door loads and repeated opening and closing cycles while maintaining precise dimensional tolerances.

2 SUS304 Stainless Steel Pivot Pin for Corrosion Resistance

The pivot pin is fabricated from premium SUS304 stainless steel, providing excellent corrosion resistance, oxidation resistance and long-term durability. The stainless steel pin ensures smooth, reliable rotation even in damp, coastal or mildly corrosive environments, and will not rust or degrade over years of service, making it suitable for both indoor and outdoor industrial applications.

3 5.3mm Adjustable Feature for Precise Door Alignment

The innovative 5.3mm adjustable feature enables precise door alignment and gap adjustment after installation, effectively compensating for sheet metal fabrication tolerances, assembly variations and door sag over time. This adjustability allows installers to achieve consistent, uniform door gaps and proper door-frame alignment without requiring rework or shimming, significantly improving installation efficiency and final appearance quality.

4 Left and Right Hand Variants for Flexible Door Configuration

The hinge is available in both left-hand (CL282-2-Z) and right-hand (CL282-2-Y) configurations, allowing designers and installers to select the appropriate hand based on the door swing direction. This ensures proper hinge orientation, optimal load distribution and smooth operation regardless of whether the door opens to the left or right, providing flexibility for various heavy cabinet layout designs.

5 Black Powder Coat Finish for Durable Industrial Appearance

The black powder coating provides a uniform matte black surface that is highly resistant to scratches, abrasion, corrosion and UV fading. The powder coat finish creates a professional industrial appearance that matches standard black cabinet hardware, while providing long-lasting protection against environmental factors in both indoor and outdoor applications.

6 Countersunk Flush Mounting with Four-Point M6 Fixation

The 4×Φ6.2 mounting holes are machined with Φ12×90° countersunk counterbores, allowing M6 flat head screws to sink completely flush with the hinge surface. This creates a smooth, snag-free exterior that eliminates protruding screw heads, improving safety, aesthetics and ease of cleaning. The four-point fixation pattern on the substantial 61×85mm plate provides robust, balanced load distribution and stable installation on heavy cabinet doors.

Application Fields

1. Heavy electrical control cabinets, low-voltage distribution boxes, frequency converter enclosures and large PLC equipment housings
2. CNC machine tool guards, heavy automation equipment protective doors and industrial machinery access panels
3. Server racks, data center enclosures, communication equipment cabinets and IT infrastructure housings
4. Outdoor communication cabinets, energy storage battery boxes and waterproof monitoring equipment enclosures
5. Sheet metal heavy tool cabinets, industrial console doors, workbench cabinets and premium storage enclosures
6. Test bench heavy cabinets, laboratory equipment enclosures and environmental monitoring control boxes
7. High-end equipment enclosures, kiosks, point-of-sale systems and display cases where robust adjustable hardware is required
8. Aluminum profile heavy industrial frames, mechanical equipment maintenance hatches and large test fixtures
9. Heavy doors requiring precise alignment adjustment and robust load-bearing capacity
10. Applications where black powder coated industrial appearance and left/right hand configuration are preferred

Installation & Maintenance Guidelines

Step-by-Step Installation Procedures

1. Select the appropriate hand variant: CL282-2-Z for left-hand door swing, CL282-2-Y for right-hand door swing
2. Determine the installation positions on both the cabinet frame and door panel according to the dimension drawing
3. Mark and drill 4×Φ6.2 through holes on both the frame and door panel according to the hole pattern (33mm/30mm/45mm vertical spacing)
4. Machine 90° countersunk counterbores to Φ12 diameter on the mounting surface side to accommodate M6 flat head screws
5. Align the hinge halves against the mounting surfaces and fasten with M6 flat head screws through all four countersunk holes
6. Confirm that all screw heads are completely flush with the hinge surface and do not protrude
7. Test the 180° opening movement for smooth rotation and verify hinge stability
8. Use the 5.3mm adjustable feature to fine-tune door alignment and achieve consistent, uniform door gaps
9. Verify that the adjustment is properly secured and that the door maintains its aligned position
10. Adjust the hinge position slightly if needed to achieve proper door alignment and smooth operation

Installation Quantity Recommendation

• Door height ≤800mm: Install 2 heavy-duty adjustable hinges symmetrically (top and bottom), ensuring both are the same hand variant
• Door height 800mm to 1500mm or heavy steel door: Install 3 hinges (top, middle, bottom) for balanced load distribution
• Very heavy doors (>1500mm or >50kg): Install 4 hinges distributed evenly along the door edge

Maintenance Instructions

1. Suitable for both indoor and outdoor environments; the black powder coat and SUS304 pin provide good corrosion resistance for most industrial conditions
2. Wipe the black powder coated surface periodically with a soft dry cloth to remove dust and grease; avoid abrasive cleaners that may scratch the powder coat finish
3. Apply a small amount of dry lubricant to the SUS304 pivot pin every six months to maintain smooth and quiet rotation
4. Check all 4 M6 countersunk mounting screw tightness quarterly to prevent loosening from vibration
5. Verify the 5.3mm adjustment setting annually; re-adjust if door alignment has shifted due to settling or wear
6. Inspect the black powder coating annually for chips or scratches; touch up with matching black paint if necessary to maintain corrosion protection
7. Inspect the SUS304 pivot pin annually for any signs of wear, bending or excessive play
8. For coastal or high-humidity applications, inspect the hinge more frequently for any signs of corrosion on exposed zinc alloy edges

Product Summary

CL282-2 is a heavy-duty adjustable hinge manufactured from high-pressure die-cast zinc alloy with a durable black powder coat finish, featuring a robust SUS304 stainless steel pivot pin and available in both left-hand (CL282-2-Z) and right-hand (CL282-2-Y) variants. Its zinc alloy construction provides exceptional structural rigidity and heavy load-bearing capacity, the SUS304 pin ensures corrosion-resistant smooth rotation, the innovative 5.3mm adjustable feature enables precise door alignment compensation, the Φ12×90° countersunk flush mounting with M6 flat head screws creates a clean snag-free exterior, and the 180° full opening angle provides unobstructed cabinet access. With its substantial 61×85mm plate, black industrial appearance and flexible left/right configuration, it is an ideal hardware solution for heavy electrical cabinets, machinery enclosures, server racks, communication equipment, outdoor enclosures and various industrial applications requiring robust adjustable hardware with premium appearance and reliable performance.

CL282-2 zinc alloy black powder coated adjustable heavy duty hinge 180 degree SUS304 pin left right 4-Φ6.2 Φ12×90 countersunk holes industrial cabinet equipment door hinge CL282-2-Z CL282-2-Y