Product Overview

The ZT-A004 Series Door Closer is a high-performance hydraulic door control device designed to provide smooth, stable, and reliable automatic door closing performance. Developed for commercial buildings, residential projects, and architectural applications, this model combines strong load capacity, durable aluminum alloy construction, and adjustable closing functions to meet the requirements of different door environments.

With a Power Size 5 rating, the ZT-A004 door closer is suitable for medium to heavy doors with a maximum door width of 1300mm and a maximum door weight range of 100–180kg. Its robust structure makes it an ideal choice for high-frequency use applications such as office buildings, hotels, shopping centers, schools, hospitals, and public facilities.

The product adopts a high-quality aluminum alloy body with a spray-painted silver finish, providing excellent corrosion resistance, modern appearance, and long-term durability. Designed according to international market requirements, the ZT-A004 is suitable for global distributors, door hardware wholesalers, construction contractors, and architectural hardware suppliers.

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Key Features of ZT-A004 Series Door Closer

1. Heavy-Duty Hydraulic Closing Performance

The ZT-A004 is designed with a powerful hydraulic mechanism that ensures controlled and smooth door movement.

Unlike ordinary mechanical door closers, hydraulic technology allows the door to close gradually and safely, preventing:

• Sudden door slamming
• Excessive impact damage
• Noise caused by uncontrolled closing
• Safety risks in public areas

The Power Size 5 design provides sufficient strength for heavy doors while maintaining comfortable operation.

It is suitable for:

• Wooden doors
• Metal doors
• Fire-rated doors
• Commercial entrance doors
• Security doors

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2. Adjustable Closing Speed Function

One of the major advantages of the ZT-A004 door closer is its adjustable closing speed system.

Users can adjust the closing speed according to different environments and requirements:

• Faster closing for security applications
• Slower closing for hotels and office buildings
• Controlled closing for elderly-friendly environments
• Customized speed adjustment according to door size and usage frequency

The adjustable hydraulic control ensures better user experience and extends the service life of both the door and hardware components.

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3. Double Speed Control Design

The product features a two-stage closing speed adjustment system.

The closing process can be divided into:

Stage 1: Main Closing Speed

Controls the movement from the fully opened position to the final closing area.

Stage 2: Latching Speed

Controls the final few degrees of door closing to ensure the door closes securely.

This design provides:

• Smooth operation
• Better safety performance
• Reduced door impact
• Reliable locking performance

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4. Durable Aluminum Alloy Body

The main body of the ZT-A004 is manufactured from high-quality aluminum alloy.

Advantages include:

Lightweight Structure

The aluminum alloy construction reduces unnecessary weight while maintaining mechanical strength.

Corrosion Resistance

The spray-painted surface treatment improves protection against moisture, oxidation, and daily wear.

Modern Appearance

The silver finish provides a clean and professional look suitable for various architectural styles.

This makes the product suitable for both indoor and semi-outdoor applications.

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5. Strong Mechanical Stability

The internal structure of the ZT-A004 is designed for long-term operation.

The door closer features:

• Stable hydraulic performance
• Reliable spring structure
• Wear-resistant internal components
• Consistent closing force

It can withstand frequent daily operation in commercial environments where doors are opened and closed hundreds of times per day.

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Technical Specifications

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Application Areas

The ZT-A004 door closer is widely used in various building projects.

1. Commercial Buildings

Commercial buildings require durable door hardware because of frequent daily traffic.

Typical applications:

• Office buildings
• Business centers
• Corporate headquarters
• Conference centers

Advantages:

• High cycle durability
• Stable closing performance
• Professional appearance

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2. Hotels and Hospitality Projects

Hotels require door hardware that combines functionality with aesthetics.

The ZT-A004 is suitable for:

• Guest room doors
• Service area doors
• Public area doors
• Back-of-house entrances

Benefits:

• Quiet operation
• Smooth user experience
• Reliable performance

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3. Residential Projects

For apartments, villas, and modern residential developments, the door closer provides:

• Improved safety
• Automatic door closing
• Better energy efficiency
• Enhanced convenience

It is especially suitable for:

• Entrance doors
• Heavy interior doors
• Security doors

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4. Educational Facilities

Schools and universities require reliable hardware that can handle intensive use.

Applications include:

• Classroom doors
• Laboratory doors
• Administration offices
• Public entrances

The ZT-A004 helps maintain controlled door operation and improves building safety.

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5. Healthcare Facilities

Hospitals and healthcare centers need durable and easy-to-maintain door hardware.

Suitable applications:

• Patient rooms
• Medical offices
• Emergency areas
• Corridor doors

The smooth hydraulic system helps reduce noise and improves the overall environment.

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Target Export Customer Groups

The ZT-A004 Series Door Closer is designed for international markets and is suitable for a wide range of professional buyers.

1. Door Hardware Importers and Distributors

Importers and distributors are one of the primary customer groups.

They typically purchase products in bulk and supply:

• Local hardware stores
• Construction companies
• Building material suppliers
• Retail chains

Why choose ZT-A004:

• Competitive wholesale pricing
• Stable product quality
• Easy inventory management
• Suitable for different market applications

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2. Architectural Hardware Wholesalers

Architectural hardware wholesalers require reliable products that meet project demands.

The ZT-A004 can be integrated into product portfolios including:

• Door handles
• Locks
• Hinges
• Panic exit devices
• Door accessories

It provides a complete solution for professional building hardware suppliers.

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3. Construction Contractors and Project Companies

Construction companies often require large quantities of door hardware for:

• Hotels
• Commercial buildings
• Apartments
• Public infrastructure projects

The ZT-A004 offers:

• Strong load capacity
• Easy installation
• Consistent quality
• Long service life

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4. Door Manufacturers

Door manufacturers need compatible hardware to complete finished door systems.

The ZT-A004 is suitable for manufacturers producing:

• Wooden doors
• Steel doors
• Fire doors
• Commercial doors

Benefits:

• Reliable supply
• Stable specifications
• Suitable for OEM cooperation

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5. Real Estate Developers

Property developers focus on durability, cost control, and long-term maintenance.

The ZT-A004 helps improve:

• Building quality
• User experience
• Project value

Suitable projects include:

• Residential communities
• Office complexes
• Shopping centers
• Hotels

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Advantages for International Buyers

Reliable Quality Control

Professional door hardware buyers require consistent quality. The ZT-A004 is designed with strict production control to ensure stable performance.

Cost-Effective Solution

The aluminum alloy structure provides an excellent balance between performance and cost, making it competitive in global markets.

Suitable for OEM & Private Label Projects

For distributors and brands, the product can support customization options such as:

• Logo printing
• Packaging customization
• Color adjustment
• Product combinations

Global Market Compatibility

The product design meets the needs of various markets, including:

• Europe
• Middle East
• Southeast Asia
• Africa
• South America

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Why Choose ZT-A004 Door Closer?

Choosing the right door closer is essential for building safety, convenience, and long-term performance.

The ZT-A004 provides:

✔ Heavy-duty Power Size 5 performance
✔ Supports doors up to 180kg
✔ Maximum door width up to 1300mm
✔ Adjustable closing speed
✔ Durable aluminum alloy body
✔ Professional silver finish
✔ Suitable for commercial and residential projects
✔ Ideal for wholesalers, distributors, and contractors

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Conclusion

The ZT-A004 Series Door Closer is a reliable and cost-effective solution for modern architectural door control requirements. With strong hydraulic performance, durable aluminum alloy construction, adjustable closing functions, and wide application compatibility, it meets the needs of international customers looking for dependable door hardware products.

For door hardware distributors, construction companies, door manufacturers, and project suppliers, the ZT-A004 provides an excellent combination of quality, performance, and commercial value.

Whether used in offices, hotels, residential buildings, schools, hospitals, or large-scale construction projects, this heavy-duty door closer delivers smooth operation, enhanced safety, and long-lasting performance.