How the concealed door closer hinges are installed?

#hinges #hardware #casting #machinery #hydraulic #hingemachinery
https://www.aleader-china.com/
M9 hydraulic hinges are designed with delicate design and excellent function, suitable for home, office and other scenarios.
Smooth and quiet operation: the hinge is designed with a hydraulic cushioning system inside to ensure that the door opens and closes smoothly and noiselessly.

Strong durability: Made of high-strength materials to ensure no deformation or loosening during long time use.
Precautions：When installing hydraulic hinges, the maximum opening angle of the door should not exceed 125 degrees to avoid damaging the hinges and the door body.
When installing, make sure the door frame is firmly fixed on the wall to prevent the door frame from loosening after long-term use.

Aleader Machinery is a modern and professional manufacturer and exporter dedicated to research, development, production, sales and service of investment castings including construction hardware, auto parts, pump & valve parts, impellers, marine hardware, and some other machinery parts in materials of stainless steel, carbon steel, alloy steel, and brass, etc.

We can supply castings in different conditions including heat-treated, precision-machined, and with some special surface treatments such as spray paint, electric or mirror-polish, satin, vibration grinding, galvanization, and nickel plating, etc. Our products are extensively used in the fields of construction industry, chemical machinery.