SS 180 Degree Self Closing Opening 4 Inch Spring Hinge for Cafe Door-DDSS038

Core Features

1. Bidirectional 180 degree opening and closing

This 4 Inch Spring Hinge supports fully unfolding the door inward or outward to 180 degrees, breaking through one-way opening and closing restrictions and adapting to narrow passages or two-way traffic needs. For example, the doors between the coffee shop kitchen and bar counter can be freely switched in opening and closing directions to avoid collision with obstacles and improve space utilization.

2. Adjustable spring tension

By using the built-in adjustment screw, users can adjust the spring closing force according to the weight of the door (recommended for door panels weighing less than 40kg), ensuring a smooth experience of easy opening and slow closing. This design avoids the problem of difficult opening or loose closing caused by the spring being too tight.

3. Durable stainless steel structure

Made of solid stainless steel forging, the surface is treated with wire drawing (SSS process), balancing corrosion resistance and simple appearance. Compared to galvanized alloy hinges, this product does not require frequent maintenance and can maintain functional stability even after long-term exposure to humid environments such as bar restrooms.

Product Features

1. Bidirectional automatic reset technology

Unlike unidirectional spring hinges, this 4 Inch Spring Hinge achieves automatic closure after bidirectional opening and closing through a symmetrical layout of dual springs. When the door is pushed 180 degrees in any direction and released, the spring will drive the door to smoothly return to its initial position, avoiding safety hazards caused by forgetting to close the door.

2. 4-inch standard adaptability

The product size is 4 inches (approximately 102mm) x 2.0mm, which meets the international standard for door hardware and can directly replace most existing hinges, reducing installation and renovation costs. Its compact design is particularly suitable for commercial doors with limited space, such as convenience store storage rooms.

3. Silent buffer design

The spring end integrates a damping structure, which automatically decelerates when the door closes to the last 15 degrees, eliminating the traditional "bang" sound of hinges. This detail significantly enhances the user experience, especially suitable for places that require a quiet environment (such as hotel room corridors).

4. Multi scenario compatibility

From the caf é bar door to the hotel entrance door, this product is compatible with wooden, metal, and composite door panels, with a thickness range of 25-45mm. Its bi-directional opening and closing characteristics further solve the pain point of traditional hinges being limited in opening and closing directions in narrow passages.

5. Cost benefit advantages

Compared to the combination of purchasing a door closer and a regular hinge separately, this 4 Inch Spring Hinge achieves dual functionality with a single product, requiring no additional maintenance during long-term use, helping buyers reduce their total cost of ownership (TCO).

Application scenario

1. Cafe bar and kitchen

In a coffee shop, this 4 Inch Spring Hinge can be installed on the door between the bar and the back kitchen, which supports the waiter to push the door inward from the bar to deliver food, or the chef to open the door outward from the back kitchen to pick up the goods. It can be opened and closed 180 degrees to avoid colliding with the equipment, and the automatic closing function can prevent the spread of odor.

2. Hotel room corridor

After the hotel entrance door adopts this hinge, guests can freely choose the direction of pushing the door (such as opening and closing with their left hand or right hand), and at the same time, the spring-driven door automatically closes, maintaining the corridor temperature and reducing noise, and improving the check-in experience.

3. Convenience store storage room

After installing this hinge in the storage room door, employees can quickly pick up the goods from both sides, and the 180-degree expansion does not occupy the passage space, and the closing function prevents the goods from being damp or lost.

4. The dining room is partitioned.

After the partition door between private room and public area uses this product, the waiter can flexibly choose the opening and closing direction to transfer the dishes, and it will automatically close to avoid the loss of air conditioning in private room and reduce energy consumption.

5. Office glass door

The glass door of the open office area is matched with this hinge, which supports two-way traffic and automatic closing, which not only maintains the sense of space transparency, but also avoids the problem of privacy leakage caused by the door not being closed.

Usage and Installation Guide

1. Preparation before installation

Confirm that the thickness of the door panel is within the range of 25-45mm, and reserve a 4-inch (102mm) hinge installation position for the door frame. Prepare an electric drill, screwdriver, and level to ensure that the door frame is perpendicular to the ground.

2. Fixed hinge body

Align the 4 Inch Spring Hint body with the edge of the door frame and secure the upper and lower holes with screws. Use a spirit level to adjust the angle and ensure that the hinge installation surface is fully aligned with the door frame, avoiding tilting that may cause opening and closing to jam.

3. Adjust the spring tension

After installing the door panel, adjust the spring force through the adjusting screw on the side of the hinge. Clockwise rotation increases the closing force, counterclockwise rotation decreases. It is recommended to initially set it to the "light push to turn on" state, and then fine tune it according to the frequency of use.

Buyer value

1. Reduce the comprehensive cost

A single 4 Inch Spring Hinge replaces the combination scheme of door closers and common hinges, which reduces the procurement and installation costs. There is no need to replace the spring or lubrication maintenance during long-term use, which further saves the later cost.

2. Improve space efficiency

The two-way 180-degree opening and closing design makes the door fully unfolded without occupying extra space, which is especially suitable for narrow scenes such as cafes and convenience stores, optimizing customer flow routes and indirectly increasing turnover.

3. Enhance the user experience

Automatic closing and mute function can eliminate the noise interference of traditional hinges and improve customer satisfaction in hotels, restaurants and other places. The adjustable tension design can adapt to different door weights and avoid the safety hazard caused by too fast closing.