Third Coast Material Handling LLC

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Speed

Four-Fold doors clear the opening at an average speed of 24 inches per second. Conventional overhead and coiling doors operate between 8 to 12 inches per second.

  • 14’ x 14’ Four-Fold Door = Less than 7 seconds to open
  • 14’ x 14’ Overhead Door = 14 to 21 seconds to open

The high-speed operation of the Four-Fold door minimizes heating and cooling losses and reduces waiting time, increasing productivity and energy efficiency.

Horizontal Movement

The Four-Fold door moves horizontally rather than vertically. As a result, the door is visible throughout the opening motion allowing the driver to know the precise second the doorway is clear to exit. This allows an apparatus to move quickly and safely. It is common with overhead sectional and coiling steel doors for delivery vehicles, pick-up trucks or even passenger cars to begin driving through the door opening after losing sight of the bottom of the door, only to hit the bottom panel as they move through the opening. A collision of this type will make it impossible to operate the door (especially with telescoping and coiling steel doors, which cannot tolerate any denting or deforming of the slats). In contrast, the Four-Fold door is able to operate with similar abuse.

Maintenance

Standard preventative maintenance (PM) on Four-Fold doors includes applying grease to hinges and operators. With general yearly PM, Four-Fold door operators and components are designed to perform over 1 million cycles. Conventional sectional and coiling doors require constant spring and cable maintenance and replacement to keep them in safe working condition. Failure to keep up with costly PM on sectional and coiling steel doors can result in door failure, which can cause both damage to equipment and injury to personnel.

Manual Operation

Manual operation is available with the Four-Fold door system. With the simple pull of a cord, manual operation is quick and easy. It requires no springs under tensions or time consuming chain hoists or heavy lifting.

Sallyport Security Door System

Four-Fold sallyport door systems are a must for high security applications. Heavy duty tube steel constructed panels are available solid sheeted, glazed with security glass or inset with security of louvers. Designed to resist forced entry, sallyport systems feature detention grade locking mechanisms, tamperproof fasteners, ballistic resistant armor sheeting options and high-speed operation to assure your facility is secure.
these doors can take the place of rolling fabric doors as there is minimal maintenance and they are built to withstand 1million cycles of high speed operation.
High Speed Four Fold Door
Pre-Engineered with standard sizes. These doors will fit any budget.

Superior Performance

The Lite-Fold series has much to offer over conventional overhead door systems. Lite-Fold doors offer high speed and high cycle operation. 14x14 doors open in 6 seconds are designed for over 1 million cycles. Due to the Lite-Fold doors heavy duty hardware and simple design, maintenance requirements are minimal.

Advanced Design

Lite-Fold series doors are available in a variety of standard layouts. Standard glazing is 1” insulated low-e units which offer considerable energy efficiencies over conventional door systems. Panels are constructed with polystyrene core and include heavy duty hinges and hardware. Door panels are available primed or factory finished in a wide variety of standard colors.


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