Double Wrap Piano Hinge

Double wrap piano hinge exhibits excellent linear consistency in precision installation scenarios. Laser measurements on a 1.2-meter-long sample confirmed that the maximum deflection difference of the hinge along the entire axial direction was only 0.15 mm, while the same indicator for an ordinary continuous hinge was 0.6 mm, which meant that the straightness error was compressed by 75 percent. The double-package structure can withstand a concentrated pressure of 2.4 kN per square centimeter without plastic deformation of the sleeve. Its impact resistance safety factor reaches 2.2 times the basic industry standard, which makes it particularly suitable for installation on automated maintenance covers or vibrating screen maintenance doors that are frequently stressed.

From the perspective of full life cycle operation and maintenance, the economy of this hinge is more prominent. A five-year tracking report based on 400 field cabinets pointed out that the failure rate directly related to the hinge in equipment using double-package piano hinges was only 0.7%, while the failure rate of similar equipment equipped with two-stage standard hinges was as high as 5.3%. At the same time, due to the double-layer wrapping, the contact area between the axis and the sleeve is increased to 2.8 times that of the traditional design, and the retention time of grease in the hinge is extended to thirteen months. Compared with ordinary hinges, ordinary hinges require four grease injection maintenance per year. This significantly reduces operating costs for inaccessible workstations such as wind turbine cabins or railway signal boxes.

 

About Us

 

Joyear Metalwork brings more than twenty years of manufacturing expertise to the table. As a result, the company has risen to a top position in its field, with a primary focus on producing a broad range of continuous hinges.

 

Our piano hinges are shipped to North America, Europe, Southeast Asia, and many other parts of the world. This worldwide reach is made possible by our superior product standards and attentive customer support.

 

 

 

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