
hing , Iran
A door hinge is a movable mechanical joint with a fixed axis for rotation. These hinges are made from ST37 carbon steel with hot-dip galvanized coating or 304 series stainless steel. The thickness of the steel sheet used varies between 1.5 and 3 millimeters. The diameter of mounting screws is typically 4 or 5 mm with standard M4 or M5 threading. The static load capacity of standard hinges ranges from 40 to 120 kg depending on design. The full rotation angle is typically 180 degrees with optional stopper installation. The gap between hinge leaves is designed between 10 and 20 mm. These dimensions allow installation on frames with thicknesses from 35 to 50 mm.
The hinge structure consists of a fixed leaf, a moving leaf, a pivot pin, and a bearing or bushing. The pivot pin is made from hardened steel with a diameter of 6 to 10 mm. Quality hinges use ball bearings to reduce friction. This design reduces the turning torque by up to 60% compared to bronze bushings. The number of mounting holes is typically 4 or 6 per leaf. Standard cyclic testing for these hinges exceeds 200,000 full open-close cycles. Some models feature a three-way adjustment system with 2 mm movement precision. This feature enables precise door alignment.You can order and buy hing from Iran by contacting us through whatsaap and email.
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Types of Industrial Hinges
Industrial hinges are categorized into several main types based on application, design, and load capacity. Piano Hinges Continuous Hinges are made from a long steel rod and used for heavy industrial doors, gates, and enclosures. Concealed Hinges are installed inside the door and frame, providing a clean, flush appearance. Strap Hinges consist of a wide metal strap and are suitable for doors requiring full 180-degree opening, such as furnace doors and electrical equipment. Ball Bearing Hinges are equipped with bearings to handle heavy loads and ensure smooth movement for very heavy doors and machinery. Friction Hinges use a friction mechanism to hold the door position at any angle. Self-Closing Hinges automatically close the door via a spring or hydraulic mechanism. Hinge selection depends on door weight, frequency of use, working environment, and safety requirements.








