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Home > products > Sectional Overhead Door >
Emergency Manual Operation Industrial Sectional Overhead Door with Wind Resistance Level 7-8 and 24dB Sound Insulation

Emergency Manual Operation Industrial Sectional Overhead Door with Wind Resistance Level 7-8 and 24dB Sound Insulation

Emergency Manual Operation

Power Failure Backup Door

Manual Chain Hoist Opening

Place of Origin:

China

Brand Name:

YOHO

Certification:

ISO 9001/CE

Model Number:

Sectional Overhead Door

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Emergency Manual Operation Industrial Sectional Overhead Door with Wind Resistance Level 7-8 and 24dB Sound Insulation Emergency Manual Operation Industrial Sectional Overhead Door with Wind Resistance Level 7-8 and 24dB Sound Insulation Emergency Manual Operation Industrial Sectional Overhead Door with Wind Resistance Level 7-8 and 24dB Sound Insulation
Product Details
Product Name:
Sectional Overhead Door
Emergency Operation:
Manual Chain Hoist (power Failure Or Motor Malfunction)
Manual Opening Force:
Approx. 140N
Balance System:
Torsion Spring With Anti-broken Device
Panel Material:
SUS 304 Stainless Steel / Color-Coated Steel Plate
Panel Thickness:
40mm / 50mm / 80mm
Wind Resistance:
Level 7-8
Sound Insulation:
24dB
Application:
Power-Critical Facilities
Highlight:

Emergency Manual Operation

,

Power Failure Backup Door

,

Manual Chain Hoist Opening

Payment & Shipping Terms
Minimum Order Quantity
1 Unit
Price
Negotiable
Packaging Details
Plywood case
Delivery Time
10-15 Days
Payment Terms
T/T
Supply Ability
300 Units per Month
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Contact Us
86--18021983369
yohao260105@gmail.com
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Product Description
Emergency Manual-Operation Industrial Sectional Overhead Door For Power-Critical Facilities
An Emergency Manual-Operation Industrial Sectional Overhead Door ensures continuous access during power outages. When power fails or motor malfunctions occur, the door can be manually opened using a chain hoist, guaranteeing uninterrupted passage for personnel and vehicles in power-critical facilities.
Access That Never Stops
The emergency manual operation feature is integrated into the door's balance and drive system. A manual hoist chain and emergency release enable operators to raise the door by hand during outages, ensuring facility entrances remain accessible. The torsion-spring counterbalance minimizes manual effort, allowing reliable operation by a single person.
Key Advantages
  • Manual Opening During Power Failure: Maintain access and emergency operations when power is lost or motor faults occur
  • Low Manual Effort: Torsion-spring balance system reduces opening force to approximately 140N for easy hand operation
  • Reliable Emergency Release: Dedicated emergency release and chain hoist enable quick and straightforward manual mode switching
  • Strong and Insulated Build: Reinforced insulated panels ensure durability and energy efficiency during normal automatic use
Product Specifications
Emergency Operation Manual chain hoist for power failure or motor malfunction
Manual Opening Force Approx. 140N
Balance System Torsion spring with anti-broken device
Panel Material SUS 304 Stainless Steel / Color-Coated Steel Plate
Panel Thickness 40mm / 50mm / 80mm
Wind Resistance Level 7-8
Speed 0.2-0.4m/s
Torsion Spring Life 30,000+ cycles
Sound Insulation 24dB
Power Supply 380V 50Hz / 220V 50Hz
Operating Automatic with manual chain hoist backup
Typical Applications
  • Power-critical facilities and plants
  • Sites where entrances must remain operable during outages
  • Facilities with backup power requirements
  • Industrial buildings needing safe emergency access
  • Remote sites with unreliable power supply
Frequently Asked Questions
What happens during a power failure?
The door can be manually opened using the chain hoist to maintain access and emergency operation.
Is it hard to open by hand?
No. The torsion-spring balance system keeps the manual opening force to around 140N, allowing operation by a single person.
Which panel materials and thicknesses are available?
Panels are offered in SUS 304 stainless steel or color-coated steel plate, with 40mm, 50mm, or 80mm thickness options.
Is manual operation safe?
Yes. A spring anti-broken device and optional wire-rope anti-break protection support safe manual use.
Get a Quote for Emergency Manual-Operation Doors
We provide technical consultation, OEM services, and bulk order solutions for emergency manual-operation industrial sectional overhead doors for power-critical facilities.
Tags：

Industrial Sectional Doors

Industrial Overhead Door

Sectional Garage Door

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