Thermal Insulated Access Door for Industrial and Commercial Loading Bays 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
• Package Size: 300.00cm * 60.00cm * 60.00cm
• Package Gross Weight: 180.000kg

Product Description

Product Description

The NHentrance sectional door features double-layered steel panels with high-temperature-resistant polyester paint for a sleek, durable finish. A thick polyurethane foam core provides excellent insulation—keeping interiors warm in winter and cool in summer.

Its robust design includes a hot-dipped galvanized steel track and an external torsion spring system rated for over 50,000 cycles. Dual seal strips ensure airtightness and energy efficiency.

For safety, options include airbag anti-pinch protection and infrared sensors that reverse the door when obstacles are detected—protecting people and vehicles.

Available in various sizes and configurations, it's ideal for warehouses, workshops, and other industrial environments.

NHentrance – Built to Perform, Made to Last.

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

Company Profile

NHentrance Co., Ltd. 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.