The Hitachi self-closing hooked spring (48cm length, 3cm diameter, 2mm wire thickness) is a key component used in elevator landing doors or car doors. Its hooked design ensures a secure connection with the door operator system. The spring uses its own elasticity to automatically return the door panel to a closed position after opening. The dimensions of the spring¡ªlength, diameter, and wire thickness¡ªdirectly influence its elasticity and durability, making it suitable for Hitachi¡¯s specific door operator structures. It helps maintain the safety and stability of the elevator door system. For more information, please contact customer service.
