Industrial Warehouse Overhead Thermal Insulated Vertical Lifting Metal Loading Dock Sectional Steel Door

Customization: Available
After-sales Service: Online Technical Support
Warranty: 1 Year

Product Description

Basic Information
Model NO.
SGD-120
Material
Steel
Thickness
40mm
Opening Style
Rolling
Opening Type
Power Driven
Pattern
Square
Color
White
Certificate
CE
Advantage
High Security, Heat Preservation
Origin
China
Key Advantages
  • Global Brand Recognition: Exported to Over 50 Countries.
  • Proven Experience: Serving Over 3600 Clients Worldwide.
  • Certified Quality: Holder of Multiple Authoritative Certifications, Including CE, SGS, UL.
  • Trusted Partner: Supplier Partner to Fortune 500 Companies.
  • Advanced Technology: Servo Intelligent Control Systems for Professional Needs.
Product Overview
Sectional Door Overview

Sectional Door Solutions

Sectional doors are installed at openings in industrial buildings, warehouses, workshops, docks and other industrial facilities. The reinforced door structure ensures uninterrupted operation and the reliable sealing system guarantees high thermal insulation of the room.

Installation Site
Site 1
Site 2
Site 3

Factory Gate + Equipment Room + Warehouse

Technical Specifications
Speed:0.2-0.3m / s
Thickness of door panel:40 mm
Available Colors:Yellow, Red, Blue, White, Grey
Motor:German Technology High-Performance Motor
Safety protection:Anti-wire rope break device, bottom airbag device, torsion spring anti-break function.
Torsion spring:≥30,000 times
Foam material:High-density polyurethane foaming material (48kg ± 2kg / m³)
Wind loading rating:4*4 Newton 700 / m2
Sound insulation:24dB
Core Features

1. Door Panel Structure: EPDM sealing tapes and bottom seals ensure full closure. The interface cuts off heat transfer to reduce energy loss.

2. Balance Device: Torsion spring made of high-quality spring steel with anti-corrosion treatment, rated for up to 100,000 cycles.

3. Control System: Intelligent frequency conversion control for stable operation and slow start/stop functionality.

4. Fall Arrest Device: Optional anti-break protection locks the door within 20cm in case of emergency.

Core Features
Safety Features

5. Panel Options: Variety of thicknesses (40/50/60/80mm) filled with polyurethane foam for impact resistance and thermal insulation.

6. Safety Equipment: Optional windows, door-in-door designs, and infrared safety sensors for comprehensive protection.

Various Colors & Components
Color Options
Structure Details
Assembly Details

Detailed Components: 1. Vertical guide rail, 2. Side frame, 3. Door shaft, 4. Torsion spring protection, 5. Sheave, 6. Balance spring mechanism, 7. Inner bracket, 8. Sandwich panel, 9. Sealing strips, 10. End buffer.

Measurement Guide

Indoor Measurement Requirements:

  • H: Height of the door opening (ground to top).
  • B: Width of the door opening (left edge to right edge).
  • h: Headroom (at least 500mm distance to ceiling).
  • b1/b2: Lateral distance (at least 150mm on both sides).
  • L: Total depth of the room.
Measurement Guide
Standard Configuration
Config 1
Config 2
Config 3

System includes door panel assembly, torsion spring break protection, wire rope anti-drop device, and full installation kit with product passport.

Project Cases
Project Cases Display
Company Overview

As a high-tech company focusing on industrial door technology, we provide customized entrance system solutions for global customers. Our main products include high-speed doors, automatic roller shutters, and sectional doors. All products comply with European industry standards and hold CE, SGS, and ISO9001 certifications.

Production 1
Production 2
Production 3
Frequently Asked Questions
Why choose our industrial doors?
We offer cost-effective products with high quality, backed by over 13 years of customization experience and professional technical support.
How do we start a project?
We simply need your basic project site information. Providing factory site plan drawings allows us to offer a complete, tailored solution.
Is the installation difficult?
Our products are designed for easy installation using screws with no welding required. We provide installation videos and technical guidance as needed.
What is the typical delivery time?
Orders are generally processed and shipped within 15-20 days after sample confirmation, typically through major international ports.
What kind of payments are accepted?
We typically accept T/T in advance. For other payment terms, please discuss with our sales team.
What is the after-sales service policy?
Spare parts can be delivered within 24 hours via international couriers like DHL, UPS, or TNT to ensure minimal downtime.

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