Blast freezers provide a unique door challenge to rolling steel, overhead and even fabric doors. The temperatures are usually in the range of -10° F on the warm side to a subfreezing temperature of -30° to -40° F on the cold side. These low temperatures are needed to ensure that the products remain frozen during transportation abroad. Unfortunately, such low temperatures also cause icing problems on conventional doors. The doors jam and ice builds up on the panels creating headaches and safety issues for the owner.


Industrial door systems solve these difficult issues with their commercial door. The door has a heavy-duty low temperature 0.25" thick EPDM rubber curtain that is rated for continuous use at -40° to -50° F. The curtain remains flexible and straightens quickly to enter the guides during the closing cycle. Ice does not build up on this curtain the same way it does on conventional products.

Other items that need to be included in the order for proper operation of the door are:

1. One-way rectifier and voltage relay for cut-off in the DC circuit rectifier to keep the brake warm and frost free
2. Synthetic oil and a heat probe in the gear box
3. A heater strip in the limit box and the wall mounted panel


An existing large yacht storage building was converted to a windmill tower production facility. The large space was perfect for fabricating and assembling massive sections of towers in preparation for shipment to field installation. However, the horizontal sliding doors required 3-4 men to open, frequently struggling with ice and snow in the door tracks; one time dislodging the door completely. This was a serious worker safety concern as well as an inefficient operation. Several other types of large hangar doors were considered for similar cost however lead times were much longer.


Broadwind already had a very positive recent history with TNR doors in a blast booth application. The doors had proven to have a tight seal, were low maintenance and had the ability to withstand accidental impact. The heavy-duty doors would accommodate the large equipment used to move tower sections in and out of the building. Broadwind's concern about windload was quickly put to rest with TNR's 90 mph rating. TNR's heavy- duty door construction and springless design were key features for the operations team. Management's initial apprehension for the cost of these large doors was allayed when safety Risk and ROI was fully reviewed.

Waste management company need extra wide and extra height door solution:

Based on the needs of Waste Management, we supplied and installed three large, externally mounted Rolling Steel doors to ensure optimal functionality for this high-usage application. These Rolling Steel doors, along with the various other equipment items provided will allow for a dependable, fully functional building.

Fire station need high speed door with bi folding option solution:

Four - fold doors at the exit doors for emergency vehicles, as the high speed and dependability of these doors are critical to maintaining a quick and efficient response when an emergency call is received. Aluminum framed, full view sectional doors were supplied at the rear of the building to ensure full, drive-through access is provided for all emergency vehicles in each bay.

Food company need specialty door separate extreme cold inside from out- side hot and humid Solution:

Unlike steel roll-up doors which mount close to the door header, these externally mounted units position the motor and key components farther away from process steam and vehicle traffic plus allow sunlight to enter improving visibility, safety and creating a more pleasing work environment. For added safety, employees must push and hold the close button at all times to lower the door, giving the user the ability to stop the door at a moment's notice. Additional safety is provided with a bottom safety edge and photo eyes to prevent any contact-related damage or injuries.