Yuma YMK744 Door Closer 60–100 kg No:4

Yuma YMK744 Door Closer (60–100 kg / No:4),

The Yuma YMK744 Door Closer (60–100 kg / No:4) is a powerful automatic door closing mechanism designed for heavy-duty doors and exterior doors requiring high wind resistance. Its No:4 power rating indicates that the closer is ideally suited to control door weights between 60 kg and 100 kg. This product is critical for access control, energy efficiency, and fire safety, ensuring that doors close completely, controllably, and reliably every time.

Product Features and Material Details

The YMK744 model is manufactured to ensure stable performance and a long lifespan even under heavy loads:

Mechanism Type: Door Closer (Heavy-Duty Door Closer).

Function: Thanks to its internal hydraulic fluid and spring system, the door closes silently and controllably in two stages after being opened, without external intervention.

Power Standard: Complies with EN 1154 Standard (No:4).

Load Capacity: Ideally suited for heavy door weights between 60 kg and 100 kg.

Door Width: Typically covers wide doors between 950 mm and 1100 mm. Provides the necessary power to control heavy and wide doors.

Speed Adjustment: Dual Speed Adjustment (Adjustable Closing Speed).

1st Speed (Main Closing): The speed at which the door closes from wide open until it is almost shut.

2nd Speed (Latching Speed): The closing speed of the door in the last 10-15 degrees of its arc. This final speed is adjusted for the door to fully engage with the lock or latch strike, preventing slamming.

Material:

Body: High-strength aluminum alloy or heavy-duty cast iron (with protective coating against external factors).

Arms and Connection Parts: Reinforced steel or alloys resistant to high tension.

Internal Structure: High-quality hydraulic oil and sealed gaskets minimally affected by external temperature changes.

2. Areas of Use and Applications

The Yuma YMK744 No:4 Door Closer is used in locations where power and reliability are a priority:

Main Entrances of Commercial Buildings: High-traffic exterior doors of shopping malls, business centers, schools, hospitals, and public buildings.

Industrial Doors: Heavy internal partition doors in factories, warehouse and storage doors.

Fire Doors: To ensure the closing of heavy fire-rated doors (relevant certifications should be checked).

Exterior Doors: Situations where wind or air pressure prevents the door from closing (hotels, plazas). This hydraulic closer has the strength to overcome wind effects.

Security: Enhances overall building security by ensuring doors always remain in a locked position.

User Information and Sectors Used In

User Information (Who Uses It?)

This product is aimed at professionals who demand stable closing performance for heavy doors or in environments with external factors such as wind:

Facility and Building Managers: Those responsible for access control in large commercial, corporate, or public structures.

Construction Contractors: Those installing heavy exterior doors in their projects that must meet international safety standards (EN 1154).

Security and Fire System Installers: To ensure reliable closing of emergency exit doors.

Main Sectors Used In

It is a fundamental component in all sectors with heavy doors and high traffic:

Commercial Real Estate and Office Buildings: Main entrance and floor doors.

Healthcare and Education: Entrances and exits of hospitals and university buildings.

Industry and Manufacturing: Heavy-duty partition doors within factories.

The Yuma YMK744 Door Closer, with its No:4 power (60-100 kg), is an important piece of equipment that raises security and comfort standards in buildings by ensuring heavy doors close controllably, reliably, and completely despite challenging environmental conditions.