CL253-30-2 50.8×63.5mm SUS304 Stainless Steel 180° Mirror Polished Butt Hinge

Full Technical Specifications

Model Number: CL253-30-2
Overall Dimensions: 50.8mm total width × 63.5mm height × 1.5mm leaf thickness
Maximum Opening Angle: 180°
Material: SUS304 stainless steel
Surface Finish: Mirror polishing (highly reflective polished finish, corrosion-resistant, premium appearance)
Pivot Pin Diameter: Φ3mm
Barrel Design: Segmented multi-section barrel for enhanced rotational stability
Mounting Holes: 6 pieces Φ5 through holes (3 per leaf), 47.5mm vertical spacing, 32.8mm horizontal spacing
Side Profile: 1.5mm leaf thickness
Design Feature: Rounded corners for safe, snag-free installation
Core Features: Full SUS304 corrosion resistance, mirror polished aesthetic, six-point M5 screw mounting, segmented barrel, 180° full opening

Core Product Features & Advantages

1 Premium SUS304 Stainless Steel Construction

The entire hinge is fabricated from SUS304 stainless steel, providing excellent corrosion resistance, oxidation resistance and structural durability. Suitable for both indoor and outdoor environments, including damp, coastal and mildly corrosive conditions, it maintains reliable performance over years of service without rusting or degrading.

2 Mirror Polished Finish for High-End Aesthetic Appearance

The precision mirror polishing creates a highly reflective, sleek metallic surface that elevates the visual quality of any equipment enclosure. In addition to its premium appearance, the polished surface resists fingerprints, is easy to clean and provides an extra layer of corrosion protection, making it ideal for medical, laboratory, food processing and cleanroom applications where hygiene and appearance are critical.

3 Segmented Multi-Section Barrel for Enhanced Stability

The precision-engineered segmented multi-section barrel design distributes the rotational load across multiple contact points, reducing wear and providing enhanced rotational stability compared to a single continuous barrel. This design ensures tight clearance, minimal wobble and smooth, quiet operation over tens of thousands of open-close cycles.

4 180° Full Flat Opening Angle

The 180-degree maximum opening angle enables the cabinet door to lay completely flat, eliminating operational blind zones and providing full unobstructed access for internal wiring, component replacement, equipment inspection and routine maintenance work.

5 Six-Point M5 Screw Mounting for Secure Fixation

The 6×Φ5 mounting holes (3 per leaf) with 47.5mm vertical and 32.8mm horizontal spacing are compatible with standard M5 screws, ensuring secure and stable installation on medium to heavy cabinet doors. The six-point fixation pattern provides robust support, balanced load distribution and resists loosening from vibration.

6 Compact 50.8×63.5mm Profile with Rounded Corners

With a compact 50.8×63.5mm overall size, 1.5mm leaf thickness and rounded corner design, this hinge fits neatly within standard cabinet door-frame configurations. The rounded corners eliminate sharp edges, reducing the risk of cuts and scratches during installation and operation, while creating a softer, more refined appearance.

Application Fields

Electrical control cabinets, low-voltage distribution boxes, frequency converter enclosures and PLC equipment housings
Medical equipment housings, portable diagnostic devices, laboratory analytical instruments and environmental monitoring control boxes
Communication equipment cabinets, indoor/outdoor server boxes and signal transfer enclosures
Food processing equipment, stainless steel sanitary cabinets and cleanroom facility enclosures
Precision instrument panels, electronic test equipment casings and measurement device housings
Outdoor monitoring equipment, weather-resistant instrument panels and coastal equipment enclosures
CNC machine tool guards, automation equipment doors and industrial machinery access panels
Marine and boat equipment, RV accessories and outdoor fixtures requiring corrosion-resistant stainless steel hardware
Premium furniture, electronic equipment casings and decorative enclosures where polished appearance is preferred
Sheet metal tool cabinets, industrial console doors and storage enclosures

Installation & Maintenance Guidelines

Step-by-Step Installation Procedures

Determine the installation positions on both the cabinet frame and door panel according to the dimension drawing
Mark and drill 6×Φ5 through holes (3 per leaf) at 47.5mm vertical × 32.8mm horizontal spacing on both the frame and door panel
Align the hinge halves against the mounting surfaces and fasten with M5 screws through all six holes
Test the 180° opening movement for smooth rotation and verify hinge stability
Adjust the hinge position slightly if needed to achieve proper door alignment and consistent gap spacing
Confirm that all screw heads are properly seated and do not interfere with hinge operation

Installation Quantity Recommendation

Door height ≤600mm: Install 2 hinges symmetrically
Door height 600mm to 1000mm or medium-weight steel door: Install 3 hinges for balanced load distribution

Maintenance Instructions

Suitable for both indoor and outdoor environments, including damp, coastal and mildly corrosive conditions; for extreme salt spray or strong chemical environments, regular rinsing with fresh water is recommended
Wipe the mirror polished surface periodically with a soft dry or slightly damp microfiber cloth to remove dust, fingerprints and grease; avoid abrasive cleaners or scouring pads that may scratch the mirror finish
Apply a small amount of dry lubricant to the Φ3 pivot pin every six months to maintain smooth and quiet rotation
Check M5 mounting screw tightness quarterly to prevent loosening from vibration
Inspect the polished surface annually for scratches or corrosion; for coastal applications, rinse with fresh water periodically to remove salt deposits
Inspect the segmented barrel assembly annually for any signs of wear, binding or excessive play

Product Summary

CL253-30-2 is a 50.8×63.5mm butt hinge with rounded corners and a segmented multi-section barrel, manufactured from premium SUS304 stainless steel with precision mirror polishing. Its full stainless steel corrosion resistance, highly reflective polished finish, enhanced rotational stability from the segmented barrel, six-point M5 screw mounting, Φ3 precision pivot pin and 180° full opening angle make it an ideal hardware solution for electrical cabinets, medical equipment, laboratory instruments, communication devices, machinery doors, outdoor enclosures and various industrial applications requiring durable performance, structural reliability and a premium polished appearance.

CL253-30-2 SUS304 stainless steel mirror polished butt hinge 180 degree 6-Φ5 mounting holes 50.8×63.5mm Φ3 pin industrial cabinet equipment hinge