Two-Stage Adjustable Door Closer - Optional Hold Open for Home & Commercial

1. Two-Stage Speed Control: Independently adjust the first closing speed and second buffer speed to avoid door impact and ensure smoother closing

2. Optional Hold Open Function: Supports hold open/non-hold open modes; the hold-open version can fix the door angle to meet ventilation and passage needs

3. High Load Adaptation: Suitable for door weight 25-45kg and door width ≤700mm, covering mainstream door specifications for home and commercial use

4. Extra Long Service Life: ≥500,000 opening/closing cycles, strong durability, less prone to failure after long-term use

5. High-Strength Aluminum Alloy Body: Corrosion and deformation resistant, adapting to various indoor and outdoor environments, longer service life

6. Silent Hydraulic Buffer: Hydraulic damping design, no noise when closing, no interference to the surrounding environment

7. Easy Installation & Debugging: Standard installation size, adaptable to various door installation methods, simple and intuitive speed adjustment

8. Enhanced Safety Protection: Buffer closing design prevents hand pinching, improving door safety

9. Fire-Rated Compatibility: Meets fire door hardware requirements, suitable for fire passages and fire door scenarios

10. Stable Closing Force: Size 2 closing force ensures the door is fully closed, no air or sound leakage

Technical data

Parameter Category

Specification

Product Name

Standard Door Closer

Closing Force

Size 2

Max Door Width

≤700mm

Suitable Door Weight

25-45kg

Speed Control

Two-stage adjustable speed (1st & 2nd stage)

Positioning Function

Optional (Hold Open / Non-Hold Open)

Service Life

>500,000 cycles

Body Material

High-strength aluminum alloy

Mounting Type

Standard surface mounting (parallel arm)

Applicable Scenarios

Swing doors, fire doors, home, hotel, office, commercial storefronts, fire exits

Color Options

Silver (standard)

Working Temperature

-10℃ ~ +40℃

Product description

This standard door closer is a hydraulic buffer automatic closing device designed for swing doors and fire doors. It features a high-strength aluminum alloy body, suitable for doors weighing 25-45kg and with a width ≤700mm, widely used in homes, hotels, offices, commercial stores, fire exits and other scenarios. Equipped with two-stage speed control technology, it can precisely adjust the closing speed and final buffer force to avoid violent impact on the door frame. It supports hold open/non-hold open dual modes; the hold-open version can fix the door at any angle for convenient passage, ventilation or temporary operation. The whole machine has a compact structure, easy installation and debugging, and a service life of more than 500,000 cycles. It combines silent, durable and safety protection performance, making it an ideal hardware accessory to realize automatic door closing and improve space safety and convenience.