Automatic Sectional Garage Door with Enhanced Security and Thermal Insulation Sectional Door

• Customization: Available
• After-sales Service: Online Service
• Warranty: 1 Year
• Model NO.: Sectional Door
• Material: Steel
• Open Style: Automatic, Overhead
• Opening Type: With Remote Control
• Special Function: Security
• Color: White, Silver, Blue, Red, Yellow, Coffee
• Certification: ISO9001
• Position: Industrial
• Surface Finishing: Finished
• Running Speed: 0.5-0.8s
• Wind Resistance: 11-12 Wind (Refer to The Size of The Door)
• Frame: Galvanized/Stainless Steel/ Plastic Spray
• Maximum Size: 10*10m
• Door Panel Thickness: 40mm-50mm
• Transport Package: Wooden Cases
• Specification: Customized Size
• Trademark: NHentrance
• Origin: Jiangsu, China
• HS Code: 7308300000
• Production Capacity: 4000 Sets/Month

Product Description

Product Description

The Nhentrance sectional door is crafted from double-layered steel for unparalleled strength. The door panels have high-temperature-resistant polyester paint, look sleek, and provide exceptional durability. A thick layer of polyurethane foam ensures superior insulation, keeping your space warm in winter and cool in summer.

The door's robust construction continues with a heavy-duty hot-dipped galvanized steel track and an external torsion spring system designed to last over 50,000 cycles. Dual seal strips keep out the elements, ensuring airtightness and energy efficiency.

Safety is our priority, with features like airbag-based anti-pinch protection or infrared sensors that automatically reverse the door upon detecting an obstacle, safeguarding people and vehicles.

Available in multiple sizes and configurations, our sectional door adapts to any industrial environment, from warehouses to workshops, offering convenience and reliability. With NHentrance, you get a door that stands the test of time.

Specification

Scope of Application	Industrial plants / Logistics and warehousing
Material	Galvanized Steel / Stainless Steel / Polyurethane Foam
Frame Treatment	Plastic Spray
Max. Size (W×H)	10×10m
Running Speed	0.5–0.8 m/s
Wind Load Resistance	Level 12
Air Tightness	Basic sealing
Optional Features	Photoelectric / Radar / Light Curtain / Geomagnetic
Door Panel Thickness	40mm, 42mm, 43mm, 50mm, 60mm, 75mm, 80mm, 40+65rib, 50+65rib, 50+95rib
Track Material	Hot-Dip Galvanized Steel Plate
Surface Texture	Smooth / Woodgrain / Stucco / Wrinkle
Color Selection	White / Black / Silver / Golden oak / Dark walnut / Almond / Beige / Brown

Structure Diagram

Advantages

Quiet and Smooth Operation

Balanced Torsion Spring System

Advanced Safety Features

Adjustable galvanized roller brackets and wear-resistant bearings ensure quiet, smooth door movement. Galvanized hinges between panels offer strong, secure connections. 

A precision-engineered torsion spring system balances the door's weight for smooth and reliable operation, while the solid steel shaft ensures long-lasting durability.

Infrared sensors and an airbag bottom seal ensure the door stops and reverses immediately upon detecting an obstacle, enhancing operational safety.

Panel Patterns & Color Options

Hardware & Accessories

Packing & Delivery

Each sectional door is carefully packaged to ensure protection during transit:

Door panels are wrapped with protective film, reinforced with edge protectors, or packed in cartons.
Hardware parts such as springs, and brackets are packed in durable cartons.
All components are securely placed inside sturdy wooden crates to prevent damage or shifting during transportation.
Each crate is clearly labeled with a detailed packing list for easy identification and handling.
Suitable for container shipping and long-distance international transport.

Company Profile

NHentrance Co., Ltd. 

NHentrance is a trusted manufacturer of high-performance industrial doors, garage doors, and dock solutions, delivering efficiency, durability, and safety across industries. With over 20 years of expertise, we provide customized solutions for logistics, manufacturing, food processing, cold storage, and commercial applications. Our product range includes high-speed doors for fast and energy-efficient access, spiral and sectional doors for secure and insulated operation, garage doors for residential and commercial use, and dock levelers and shelters for seamless loading. NHentrance is committed to quality, innovation, and long-term performance to optimize your business operations.

Other Product Links

FAQ

Q1: What types of industrial doors do you manufacture?
A: We offer a variety of industrial doors, including but not limited to high-speed PVC doors, industrial stacking doors, high-speed zipper doors, spiral doors, cold storage doors, and sectional doors. 

Q2: Do your doors come with any warranty?
A: Yes, all our products come with a standard warranty, typically one year, depending on the product type and usage.

Q3: Can your doors be used in harsh environments?
A: Our doors are designed to withstand harsh environmental conditions, including extreme temperatures, humidity, dust, and chemicals. They are built to last and perform consistently over time.

Q4: Do you have a minimum order quantity requirement?
A: There is no minimum order for our doors. Please get in touch with our sales team for door accessories and door operators for further assistance.

Q5: What is the process for ordering a customized door?
A: Ordering a customized door involves a consultation with our sales team to discuss your requirements, such as size, material, and features. Once the requirements are confirmed, we will provide you with a detailed quotation and lead time for production.

Q6: How long does it take to produce a customized door?
A: The lead time for producing a customized door varies depending on the complexity of the design and current production schedules. Typically, it can range from a few weeks to two months. We will provide you with an estimated delivery date upon placing the order.

Q7: What kind of payment terms would you accept?
A: We usually accept T/T and L/C, etc. If you prefer another payment term, please discuss them with us.

Q8: How do you package your shipments?
A: Our doors are packaged in wooden crates. Please let us know if you require specific packaging arrangements.