CL253-7 36×64mm SUS304 Stainless Steel 180° Mirror Polished Mini Butt Hinge

Full Technical Specifications

Model Number: CL253-7
Overall Dimensions: 36mm total width (12mm + 12mm leaves + barrel) × 64mm 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: Φ4mm
Mounting Holes: 6 pieces Φ3.2 through holes (3 per leaf), 24mm vertical spacing, 12mm horizontal spacing
Side Profile: 1.5mm leaf thickness
Design Feature: Rounded corners for safe, snag-free installation
Core Features: Compact mini size, full SUS304 corrosion resistance, mirror polished aesthetic, six-point M3 screw mounting, 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 and cleanroom applications where hygiene and appearance are critical.

3 Compact Mini Footprint with Rounded Corners

With a compact 36×64mm overall size, 1.5mm leaf thickness and rounded corner design, this hinge is specifically designed for small and medium-sized equipment enclosures where installation space is limited and user safety is a consideration. The rounded corners eliminate sharp edges, reducing the risk of cuts and scratches during installation and operation, while creating a softer, more refined appearance.

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 on small enclosures.

5 Six-Point M3 Screw Mounting for Secure Fixation

The 6×Φ3.2 mounting holes (3 per leaf) with 24mm vertical and 12mm horizontal spacing are compatible with standard M3 screws, ensuring secure and stable installation on small cabinet doors. The six-point fixation pattern provides robust support and resists loosening from vibration while maintaining the compact overall dimensions.

6 Smooth Precision Rotation with Φ4 Pivot Pin

The precision-machined barrel and Φ4 pin assembly ensures tight clearance, low-friction rotation and minimal wobble, delivering smooth and quiet operation over tens of thousands of open-close cycles. The compact construction is optimized for lightweight to medium-weight small cabinet doors.

Application Fields

Small electrical control boxes, compact PLC enclosures, terminal junction boxes and low-voltage distribution cabinets
Medical equipment housings, portable diagnostic devices, laboratory analytical instruments and environmental monitoring control boxes
Communication equipment cabinets, indoor/outdoor server boxes and compact 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 small coastal equipment enclosures
Premium compact furniture, electronic equipment casings and decorative enclosures where polished appearance is preferred
Marine and boat equipment, RV accessories and outdoor fixtures requiring corrosion-resistant stainless steel hardware
Applications where rounded corner safety design and compact size are required

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×Φ3.2 through holes (3 per leaf) at 24mm vertical × 12mm horizontal spacing on both the frame and door panel
Align the hinge halves against the mounting surfaces and fasten with M3 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 ≤400mm: Install 2 hinges symmetrically
Door height 400mm to 700mm or medium-weight 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 Φ4 pivot pin every six months to maintain smooth and quiet rotation
Check M3 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
Due to the compact size, avoid over-tightening screws which may cause deformation of the thin hinge plate

Product Summary

CL253-7 is a compact 36×64mm mini butt hinge with rounded corners, manufactured from premium SUS304 stainless steel with precision mirror polishing. Its full stainless steel corrosion resistance, highly reflective polished finish, safe rounded corner design, six-point M3 screw mounting, Φ4 precision pivot pin and 180° full opening angle make it an ideal hardware solution for small electrical cabinets, medical equipment, laboratory instruments, communication devices, outdoor enclosures and various precision applications requiring compact size, durability, safety and a premium polished appearance.

CL253-7 SUS304 stainless steel mirror polished mini butt hinge 180 degree 6-Φ3.2 mounting holes 36x64mm Φ4 pin small industrial cabinet equipment hinge