CL272 POM Black Adjustable Damping Torque Hinge with PC (Polycarbonate) Shaft — 160°

Full Technical Specifications

Model Number: CL272
Hinge Body Material: POM (polyoxymethylene / acetal) engineering plastic
Shaft Material: PC (polycarbonate)
Screw and Nut Material: Stainless steel
Surface Finish: Black hinge body, natural color PC shaft
Maximum Opening Angle: 160°
Overall Dimensions: 36mm total width × 43mm height × 12.5mm side height
Mounting Holes: 4 pieces Φ4.4 through holes, 12.5mm horizontal spacing, 31.5mm vertical spacing
Damping Adjustment: Integrated top adjustment screw for customizable rotational friction / torque
Side Profile: 12.5mm total height, 6mm body thickness
Core Features: Adjustable damping torque, POM wear-resistant construction, PC shaft, stainless steel hardware, 160° opening, four-point M4 mounting, position-hold functionality, black finish

Core Product Features & Advantages

1 Adjustable Damping Torque for Customizable Door Positioning

The integrated top damping adjustment screw allows precise customization of rotational friction and holding torque, enabling the door to be held securely at any desired angle within the 160° opening range. This eliminates the need for separate door stays, gas struts or support mechanisms, simplifying equipment design and reducing component count. The torque can be easily adjusted with a standard screwdriver to match specific door weight and operational requirements.

2 High-Quality POM Engineering Plastic Construction

The hinge body is manufactured from POM (polyoxymethylene/acetal) engineering plastic, providing excellent wear resistance, low friction, high mechanical strength and dimensional stability. POM is inherently self-lubricating, ensuring smooth, consistent rotation over extended service life without the need for external lubrication. The material also offers good chemical resistance and electrical insulation properties, making it suitable for electronic and laboratory equipment.

3 PC (Polycarbonate) Shaft for Impact Resistance

The hinge shaft is fabricated from PC (polycarbonate), providing exceptional impact resistance, toughness and transparency (natural color). Polycarbonate combines high strength with flexibility, ensuring the shaft can withstand repeated rotational stress and impact without cracking or breaking. The natural color PC shaft creates a subtle visual contrast with the black POM body.

4 Stainless Steel Adjustment Screw and Nut for Durability

The damping adjustment mechanism uses stainless steel screw and nut components, providing excellent corrosion resistance, precise thread engagement and long-term durability. The stainless steel hardware ensures that the torque adjustment remains stable and reliable over thousands of adjustment cycles, without thread stripping or corrosion-related seizing.

5 160° Wide Opening Angle

The 160-degree maximum opening angle provides broad access for internal wiring, component replacement, equipment inspection and routine maintenance work. The wide opening range, combined with the adjustable damping feature, allows the door to be positioned at any intermediate angle for hands-free operation during servicing.

6 Compact 36×43mm Body with Four-Point M4 Mounting

The compact 36×43mm overall size fits neatly within standard equipment enclosure configurations, while the 4×Φ4.4 mounting holes (12.5mm horizontal × 31.5mm vertical spacing) allow M4 screws to securely fasten the hinge to both cabinet frame and door. The four-point fixation pattern provides stable installation and consistent torque performance.

Application Fields

Instrument enclosures, electronic test equipment casings, measurement devices and precision instrument panels requiring positionable doors
Medical devices, portable diagnostic equipment, laboratory analytical instruments and healthcare equipment enclosures
Display panels, kiosks, point-of-sale systems, touchscreen enclosures and adjustable monitor mounts
Communication equipment, server access panels, IT infrastructure housings and network device enclosures
Electronic equipment casings, handheld device housings, compact consumer electronics and IoT device enclosures
Laboratory equipment, scientific instruments, environmental monitoring devices and research apparatus
Furniture hardware, cabinet doors, display cases and adjustable shelving requiring controlled positioning
Automotive interior components, RV accessories, boat equipment and vehicle storage compartments
Applications where lightweight, corrosion-resistant plastic hinges with adjustable torque are preferred
Equipment requiring hands-free door positioning at various angles for operation or maintenance

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 4×Φ4.4 through holes at 12.5mm horizontal × 31.5mm vertical spacing on both the frame and door panel
Align the hinge halves against the mounting surfaces and fasten with M4 screws through all four holes
Test the 160° opening movement for smooth rotation and verify hinge stability
Adjust the top damping screw clockwise to increase rotational friction / holding torque, or counterclockwise to decrease friction
Verify that the door can be held at the desired angle without drifting or falling
Fine-tune the damping adjustment to match the specific door weight and operational requirements
Confirm that all screw heads are properly seated and do not interfere with hinge operation
Adjust the hinge position slightly if needed to achieve proper door alignment and consistent gap spacing

Installation Quantity Recommendation

Door height ≤400mm or lightweight door: Install 1 adjustable damping hinge (centered) or 2 hinges symmetrically
Door height 400mm to 800mm or medium-weight door: Install 2 hinges symmetrically (top and bottom)
Door height >800mm or heavy door: Install 3 hinges (top, middle, bottom) for balanced load distribution
Note: When using multiple damping hinges, adjust each hinge’s damping screw to distribute the holding torque evenly

Maintenance Instructions

Suitable for indoor environments; POM and PC materials offer good corrosion resistance but are not recommended for extreme high-temperature (above 80°C) or strong chemical environments
Wipe the black POM surface periodically with a soft dry or slightly damp cloth to remove dust and grease; avoid abrasive cleaners that may scratch the surface
The POM material is self-lubricating and generally does not require additional lubrication; avoid applying oil or grease which may attract dust
Check the 4 M4 mounting screw tightness quarterly to prevent loosening from vibration
Verify the damping adjustment quarterly; re-adjust the top screw if the door holding torque has changed due to wear or temperature variations
Inspect the POM hinge body and PC shaft annually for any signs of cracking, deformation or excessive wear; replace the hinge if any damage is detected
Do not exceed the 160° maximum opening angle, as this may cause damage to the POM hinge body or PC shaft
For outdoor applications, ensure the hinge is protected from direct UV exposure and extreme temperature fluctuations to maintain material integrity

Product Summary

CL272 is an adjustable damping torque hinge manufactured from high-quality POM engineering plastic with a black finish, featuring a PC (polycarbonate) shaft and stainless steel adjustment screw and nut. Its integrated top damping adjustment screw enables precise customization of rotational friction, allowing the door to be held securely at any angle within the 160° opening range without separate door stays. The POM construction provides excellent wear resistance, self-lubrication and electrical insulation, while the PC shaft offers exceptional impact resistance. With its compact 36×43mm body, four-point M4 mounting, corrosion-resistant stainless steel hardware and position-hold functionality, it is an ideal hardware solution for instrument enclosures, medical devices, electronic equipment, display panels, laboratory instruments and various applications requiring controlled, positionable door movement with lightweight, durable plastic construction.

CL272 POM black adjustable damping torque hinge PC shaft stainless steel screw 160 degree 4-Φ4.4 mounting holes friction control industrial cabinet equipment door hinge