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Bi-Fold Hangar Door
The Madoors USA Bi-Fold Hangar Door is a fully electric, heavy-duty bifold hangar door system engineered for aircraft hangars of any size — delivering a larger clear opening at lower cost than traditional sliding hangar doors, with no headroom loss, tight energy-efficient insulation, and a series of proprietary innovations exclusive to Madoors USA that make the door faster, quieter, easier to maintain, and longer lasting than any competing bifold or hydraulic hangar door on the market.
Two innovations are unique to Madoors USA and unavailable from any other hangar door manufacturer: the accessible under-frame greasing system with grease zerks on every hinge segment — allowing periodic hinge lubrication from the underside of the doorframe without removing the top rubber weather seal — and the lift-strap system paired with a strap autolatch mechanism, enabling the door to open and close faster, more quietly, and more effortlessly than traditional sliding hangar doors while also being safer, easier to install, and longer lasting. Madoors USA is the only door manufacturer in the world offering both of these capabilities in a bifold or hydraulic hangar door system.
TECHNICAL SPECIFICATIONS
The Madoors USA Bi-Fold Hangar Door is built on an engineered heavy-duty hinge system designed for both long-term structural durability and straightforward field maintenance. Every hinge segment incorporates grease zerks — fittings that allow grease to be injected directly into the hinge bearing surfaces — positioned for access from the underside of the doorframe. This under-frame greasing access eliminates the need to remove the top rubber weather seal to lubricate the hinges, saving significant time and effort during periodic maintenance cycles and reducing the risk of weather seal damage caused by repeated removal and reinstallation.
Hinge pins are removable and replaceable, allowing worn or damaged hinge pins to be exchanged in the field without requiring the removal of the full hinge assembly or replacement of the door panel — a significant maintenance cost and time saving for large commercial and private aircraft hangar operators over the service life of the door.
The lift-strap system replaces the conventional sliding and folding mechanisms of traditional hangar doors with a strap-based lifting configuration that reduces the number of moving parts, lowers operating noise, and decreases the physical effort required to operate the door. The strap autolatch system provides automatic secure latching of the door in the open position without requiring manual engagement of a separate latch mechanism — eliminating the safety risk of an unlatched door closing unexpectedly during aircraft movement or maintenance operations.
The door operates fully electrically, requiring no manual tugging, pulling, or physical force from the operator throughout the open and close cycle. The fully electric drive eliminates the physical labor associated with manually operated hangar doors and supports consistent, reliable operation regardless of operator physical capability or weather conditions.
The door is tightly insulated for energy efficiency, maintaining hangar interior temperatures and reducing heating and cooling energy costs throughout the operating year. The insulated construction will not bow or sag over time, maintaining consistent sealing performance and structural geometry across the full service life of the door. The door seals snugly against snow and ice without requiring manual clearing of the threshold before operation — a critical operational advantage for hangars in cold climate locations where snow and ice accumulation at the door threshold is a routine winter maintenance challenge.
The door adapts to buildings of any size — large commercial aviation facilities and small private hangars — and loses no headroom upon installation, preserving the full interior clear height of the hangar structure for aircraft movement and maintenance operations. Installation kits are available for straightforward setup, and the reduced number of moving parts compared to traditional hangar door systems delivers smooth, reliable long-term performance with lower maintenance frequency.
KEY FEATURES
Exclusive Under-Frame Grease Zerk System — No Weather Seal Removal
Madoors USA is the only hangar door manufacturer in the world to offer grease zerks on every hinge segment accessible from the underside of the doorframe — allowing periodic hinge lubrication without removing the top rubber weather seal. This exclusive maintenance access design saves significant time and effort during each lubrication cycle and eliminates the weather seal damage risk associated with repeated removal and reinstallation in conventional bifold door maintenance procedures.
Removable & Replaceable Hinge Pins
All hinge pins are removable and replaceable in the field, allowing worn or damaged hinge pins to be exchanged without full hinge assembly removal. This replaceability extends the service life of the hinge system beyond what is achievable with fixed-pin designs, reduces maintenance cost per replacement event, and enables hinge pin exchange as a routine field maintenance task rather than a specialized repair requiring door removal.
Exclusive Lift-Strap System — Fast, Quiet & Effortless
The Madoors USA lift-strap system is exclusive to Madoors USA — unavailable from any other bifold or hydraulic hangar door manufacturer. The lift-strap mechanism enables the door to open and close faster, more quietly, and more effortlessly than traditional sliding hangar doors, with fewer moving parts contributing to smoother, more reliable long-term operation and reduced maintenance requirements compared to the more complex mechanical systems of conventional hangar door designs.
Strap Autolatch System — Automatic Secure Latching
The strap autolatch system — also exclusive to Madoors USA — automatically latches the door securely in the open position without requiring manual latch engagement by the operator. This automatic latching eliminates the safety hazard of an unlatched open hangar door unexpectedly closing during aircraft ground movement, refueling, or maintenance operations — a risk present in hangar door systems relying on manual latch engagement that operators may omit under time pressure or distraction.
Fully Electric Operation — No Manual Force Required
The Madoors USA Bi-Fold Hangar Door operates fully electrically, requiring no manual tugging, pulling, or physical force from the operator at any point in the open or close cycle. Fully electric operation eliminates the physical labor of manual hangar door operation, supports consistent performance regardless of weather conditions, and enables operation by a single person regardless of door size or panel weight.
Adapts to Any Building Size
The door system adapts to hangars of any size — from small private aircraft facilities through to large commercial aviation maintenance hangars — providing the same proprietary maintenance, performance, and safety features regardless of the scale of the installation.
No Headroom Loss
The bifold door design loses no headroom upon installation, preserving the full interior clear height of the hangar structure for aircraft tail clearance, maintenance equipment movement, and structural headroom compliance. This zero headroom loss characteristic is a significant operational advantage over door systems that consume ceiling clearance in their open stacked position.
Larger Opening at Lower Cost
The bifold configuration provides a larger clear opening for a lower installed cost than traditional sliding hangar door systems of equivalent opening width — delivering both an operational benefit through increased aircraft movement clearance and an economic benefit through reduced installation cost.
Tight Insulation — Energy Efficiency & No Bow or Sag
The tightly insulated door construction maintains hangar interior temperatures and reduces heating and cooling energy costs across the operating year. The insulated panel construction resists the bowing and sagging that affect poorly constructed hangar doors over time — maintaining consistent gap geometry, seal performance, and structural alignment across the full service life of the door without remedial adjustment.
Snow & Ice Resistant — Snug Threshold Seal
The door seals snugly against snow and ice accumulation without requiring manual threshold clearing before operation. This snow and ice resistance eliminates the routine winter maintenance requirement of clearing the door threshold and the operational delay caused by ice-bound thresholds in conventional hangar doors — providing reliable all-weather operation in cold climate hangar locations.
Fewer Moving Parts — Long-Term Reliability
The lift-strap system and simplified hinge design reduce the total number of moving parts in the door system compared to conventional bifold and sliding hangar door mechanisms, directly reducing the frequency of mechanical component wear, adjustment requirements, and failure events across the service life of the door — delivering smoother, more reliable long-term operation with lower ongoing maintenance costs.
Installation Kits Available
Installation kits are available for the Madoors USA Bi-Fold Hangar Door, providing all required hardware, fasteners, and installation guidance for straightforward setup by qualified installation teams — reducing installation time and eliminating the need for custom fabrication of installation hardware on site.
ASSEMBLY & INSTALLATION SEQUENCE
Site Survey & Door Configuration
Hangar opening width, height, structural header capacity, available headroom, and electrical supply position are assessed. Door panel count, lift-strap configuration, and autolatch positions are determined for the specific opening dimensions. Installation kit contents are verified against the confirmed door configuration.
Header & Track Preparation
The structural header above the opening is assessed for load capacity to support the bifold door panel weight and lift-strap system loads. Track and mounting positions for the top-guided door system are marked and prepared along the header. All structural fixing anchor positions are verified for pull-out strength before installation proceeds.
Hinge Assembly & Panel Connection
Door panels are connected using the engineered heavy-duty hinge system. Grease zerks are verified on every hinge segment and positioned for under-frame access. Hinge pins are installed and verified as removable and replaceable before door installation proceeds.
Door Panel Installation & Lift-Strap Connection
Assembled door panels are installed in the opening and connected to the lift-strap system. Lift-strap tension, travel geometry, and strap autolatch position and engagement are set and verified. Door panel alignment, threshold seal contact, and side seal contact are verified across the full closed position.
Electric Drive System Installation & Commissioning
The fully electric drive system is installed and connected to the facility electrical supply. Open and close cycle speed, limit positions, and autolatch engagement timing are set and programmed. Manual override function is tested and verified.
Under-Frame Grease System Verification
Under-frame access to all grease zerks is verified without weather seal removal. Initial lubrication of all hinge segments is completed through the under-frame grease zerks. Hinge pin removal and replacement is tested on a representative hinge segment to confirm field replaceability.
Snow & Ice Seal Verification & Final Testing
Threshold and side seal contact in the fully closed position is inspected and adjusted for snug, tight sealing performance across the full door width. Complete operational testing is conducted across multiple open and close cycles — electric drive, lift-strap operation, autolatch engagement, and seal contact are verified. Installation handover documentation is completed.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA Bi-Fold Hangar Doors are specified for any aircraft hangar or large industrial facility requiring a fully electric, low-maintenance, energy-efficient bifold door with certified snow and ice resistance and exclusive hinge maintenance access.
- Private aircraft hangar bifold door installations
- Corporate aviation facility hangar doors
- Fixed base operator hangar door systems
- Commercial airline maintenance hangar doors
- Military aircraft maintenance and storage hangar doors
- Helicopter hangar bifold door installations
- Agricultural and rural aircraft hangar doors
- UAV and drone operations hangar door systems
- Cold climate hangar facilities requiring snow and ice resistant sealing
- Large industrial facility entrance bifold door systems
- Fire station and emergency vehicle facility bifold doors
- Bus depot and commercial vehicle maintenance facility doors
- Category: Hangar Doors