Dockport 6 - Heavy Duty Marine Doors

Dockport Logo

Product Features

  • Heavy duty 6″ curved metal slats
  • Up to 75 feet wide and 90 feet tall, or larger
  • Our strongest door available, designed for the most demanding applications and environments

Dockport 6 heavy duty rolling doors are ideal for use in factories, parking garages, harsh environments, airports, loading docks, industrial and commercial buildings, security/impact areas, high traffic areas, shipping and ocean container loading and unloading areas.

Functional Benefits

  • Alpine Dock Port 6” curved 16ga galvanized roll formed contoured interlocking slats are strong durable and meets your requirements anywhere you need extreme security  
  • Doors can be manually pushed up, hand-crank, hand-chain or motor operated. 
  • All operators can be adapted to specific conditions. 
  • Slide lock or pin locking mechanisms can be provided depending on the type of door operation.

The Alpine Advantage and Benefit

  1. Alpine Dock Port 6” curved slat doors are recommended for security against
  2. theft and other applications where security, strength and high quality are essential. 
  3. No matter how large or small the job or how unusual the application, Alpine has a service door that meets your individual specifications. 
  4. Doors are available in different materials including, stainless steel.
  5. Alpine’s quality and workmanship are proven throughout the door industry. 
  6. Our hands-on approach to every job ensures customer satisfaction.

Locations of our Dockport Doors Include:

  • Brooklyn Army Terminal, NYC Dept. – Pier Shed #2, Brooklyn, New York 242 doors
  • Marine & Aviation – Mitsul Lines, Brooklyn, New York 75 doors
  • Port of New York Authority – Piers 9A & 9B, Brooklyn, New York 74 doors
  • US Lines – Piers 59, 60, 61 & 62, New York City 233 doors
  • Commonwealth of Massachusetts – Pier 3, Boston, Massachusetts 11 doors
  • City of Philadelphia – Municipal Piers 9, 38, 40 & 42 22 doors
  • Port of Miami – Transit Shed #1, Miami, Florida 30 doors
  • Tioga Marine Terminal – Philadelphia, Pennsylvania 32 doors
  • Container Terminal – Berth #80 & #82, Port Elizabeth, New Jersey 8 doors
  • Universal Maritime Service Corp. – Transit Shed, Port Newark, NJ 11 doors
  • Consolidated Passenger Ship Terminal – Pier 88, N.R., NYC 5 doors

Installation

  • Alpine rolling steel doors are durable, sturdy and economical to install and maintain
  • Opening preparation, miscellaneous or structural metal work, access doors, finish or field painting, field electrical wiring, wire, conduit, fuses and disconnect switches are in the Scope of Work of other divisions or trades.
CURTAIN
Constructed of 16 gauge, roll-formed galvanized steel, 6” curved slats with minimum tensile strength of .75000, interlocking, with contoured sections. Heavy Duty Industrial Design available in 14 gauge. 
Material Option: #4 Stainless Steel
Finish Option: ExoShield™powder coating

GALVANIZED ENDLOCKS/WINDLOCKS
Ductile cast iron endlocks, hot-dipped galvanized and riveted to the ends of each slat with 1/4” thick solid rivets which prevents lateral movement and limits the slat deflection of the curtain.

BOTTOM BAR
Made of two galvanized steel angles which extend into the guides. 
Option: Loop Astragal or Electric Monitored Sensing Edge

BRACKETS
Alpines Grey ExoShield™ powder coated carbon steel plate not less than 1/4” thick. Ball bearings are located at rotating support points. When bolted to the wall mounting angle it supports the counterbalance assembly and forms an end enclosure.
Finish Option: Choice of 188 ExoShield™ powder coat colors
Material Options: #4 Stainless Steel

GUIDES
Alpine’s Grey ExoShield ™ powder coated Guides are designed using structural or formed steel angles a minimum of 1/4” thick.
Option: 1-½” Brush Seals
Finish Options: Choice of 188 ExoShield™ powder coat colors

COUNTERBALANCE ASSEMBLY
Steel pipe barrel of a size capable of carrying a curtain load with a maximum deflection of 0.03” per ft. of door width. The Heat treated helical torsion springs are encased in a steel pipe barrel designed for proper door balance. This is to ensure that the effort to operate the door will not exceed 35 lbs. A sealed and pre lubricated ball bearing is present at rotating support points. A Charge Wheel is located outside the end bracket, which is used for applying initial spring torque and for future adjustments
Option: High Cycle Springs can be designed to satisfy from 20,000 life cycles up to 400,000 life cycles
Standard Finish: Black coat of rust inhibitor
Finish Options: Zinc Enriched Powder Coat

HOOD Hexagon (Option: Square or Round )
Made from 22 gauge steel formed to fit the contour of the brackets with 3/8” thick intermediate supports as required to prevent excessive sag.

Available in push-up, hand chain, hand-crank, or motor operation. 

Alpine Motor Operators

Alpine’s Redi-Master® is a heavy industrial-duty, gear reduce hoist operator. Its features include a reduction unit comprised of a heavy-duty worme in an oil bath unit. The standard horsepower of the Redi-Master® steel door operator is 1/2 and has a maximum horsepower. The Redi-Master® includes a hand chain, a maintenance alert system, and a maximum run timer that automatically stops the door if it moves longer than its preset cycle time.
> View Redi-Master® Details
Alpine’s Redi-Hoist™ is a medium-duty, belt drive hoist operator with an auxiliary chain hoist. It has a maximum 1/2 horsepower and it is available for use on doors up to 10′ by 10′. The Redi-­Hoist™ electric gate operator comes with an emergency floor disconnect for manual operation by hand chain.
> View Redi-Hoist™ Details
Alpine’s Redi-Lift™ is an industrial-duty, V-belt hoist operator that is available for doors up to 12′ by 12′. The Redi-Lift™ includes a hand chain, a maintenance alert system, and a maximum run timer that automatically stops the door if it moves longer than its preset cycle time. This electric gate operator is available up to 1 horsepower.
> View Redi-Lift™ Details

ACCESS CONTROLS:
Optional control stations are available as Push Button Control Station or Key Control Stations. Special Control Stations are also available, please consult factory

Contact Alpine to learn more about these motor operators today!

Alpine® High Cycle Doors, Heavy Duty Doors, Dock Port Doors

6″ Curved Slat Heavy Duty Doors

Below you will be able to download details for dock port doors or click here to request a quote. The details for the high cycle doors are available as a PDF. AutoCAD drawings and AutoCAD details for heavy duty doors may be selected on the CAD FILES option to the right. The AutoCAD drawings and AutoCAD details comply with 08360, 08400 & 08330 construction specifications. You’ll find useful information about these doors regarding the operation, including both manual and motor operation.

DockPort 6” Curved Slat dock port doors and aircraft doors comply with the 08330 construction spec. All heavy duty doors are durable, sturdy and economical to install and maintain. This titan of service doors is the largest and strongest loading dock door available. These coiling doors are massive in size and are great for your largest helicopter hangar door openings. For counter shutters or industrial grilles, please select the item from the product index.

To download details (PDF) doors please click below.

> For CAD Drawings, 
click here

High Cycle Doors, Heavy Duty Doors, Dock Port Doors, Aircraft Doors
High Cycle Doors, Heavy Duty Doors, Dock Port Doors, Aircraft Doors
High Cycle Doors, Heavy Duty Doors, Dock Port Doors, Aircraft Doors
High Cycle Doors, Heavy Duty Doors, Dock Port Doors, Aircraft Doors

The Dock Port 6” Curved Slat AutoCAD drawings and AutoCAD details are for informational purposes. They may change at any time. The CAD detail and CAD drawing reflect the options that are available to the architects and engineers compiling a drawing of high cycle doors to present to contractors. The AutoCAD detail and AutoCAD drawing will be updated regularly. Alpine’s heavy duty doors and dock port doors are unmatched in the industry!

Call Alpine today to speak with one of our dedicated employees to discover the aircraft doors, high cycle doors, heavy duty doors or dockport doors that are right for you!

Alpine® Dock Port Pier Doors

Rolling Door Traditional Design

> Download 3 Part Specifications (PDF) 
> Download 3 Part Specifications (DOC)

Model Dock Port 6
Curved Slats
Service Dock Doors

NOTE: For dock doors and pier doors specifications, architects must choose from a variety of options. The standard choice will be shown first in plain text followed by the options shown in [brackets] (Example “Finish: Galvanized [Powder coated] [Baked enamel]”). The specifier must make the appropriate choices for the craneway doors and aircraft hangar doors and delete the others (Example: “Finish: Powder coated”).

GENERAL

1.01 SUMMARY OF AIRCRAFT HANGAR DOORS
A.
Related Sections: Related to this section, but not limited to, the following (based on Master Format 2004):
1. Section 01660 – Product Storage and Handling Requirements.
2. Section 04220 – Concrete Unit Masonry.
3. Section 05120 – Structural Steel.
4. Section 06100 – Rough Carpentry.
5. Section 08310 – Access Doors and Panels.
6. Section 08710 – Door Hardware.
7. Section 09290 – Gypsum Board.
8. Section 09900 – Paints and Coatings.
9. Section 26000 – Electrical.

1.02 REFERENCES for Dock Doors, Pier Doors, Craneway Doors, Service Dock, and aircraft hangar doors:
A. ASTM A 653/A 653M – Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process of dock doors
B. ASTM A 36 – Standard Specification for Carbon Structural Steel, Hot Rolled Steel
C. ASTM A 123 – Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
D. ASTM A 312 – Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
E. ASTM A 240 – Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
F. ASTM A 276 – Standard Specification for Stainless Steel Bars and Shapes
G. ASTM B 209 – Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
H. ASTM B 221 – Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

1.03 SUBMITTALS FOR DOCK DOORS
A. Submit under provisions of Section 01300.
B. Product Data: Provide manufacturer’s standard details and catalog data. Provide installation instructions.
C. Shop Drawings: Furnish shop drawings for architect’s approval. Include elevation, sections, and details indicating dimensions, materials, finishes, conditions for anchorage and support of each door.
D. Submit manufacturer’s recommended operation, troubleshooting, and maintenance instructions.

1.04 QUALITY ASSURANCE for Dock Doors, Pier Doors, Craneway Doors, Service Dock, and airecraft hangar doors:
A. Manufacturer: Rolling doors shall be manufactured by a firm with a minimum of five years experience.
B. Single-Source Responsibility: Manufacturer shall provide dock doors, tracks, motors, and accessories for each type of door. Secondary components shall come from a source acceptable to the manufacturer of the primary components.

1.05 DELIVERY, STORAGE, AND HANDLING OF CRANE-WAY DOORS
A. Deliver materials in original packaging supplied by manufacturer with intact labels. Store materials away from harmful environmental conditions and construction.

1.06 WARRANTY of Dock Doors, Pier Doors, Craneway Doors, Service Dock, and aircraft hangar doors
A. Door Warranty: Provide one year written warranty from date of installation against deficiencies due to defects in materials or workmanship. Installer agrees to repair or replace any defects in materials or workmanship.
B. Project Warranty: Refer to Conditions of the Contract for project warranty provisions.

PART 2 – PRODUCTS

2.01 MANUFACTURER OF AIRCRAFT HANGAR DOORS
A. Manufacturer: Alpine Overhead Doors, Inc.; 8 Hulse Road Suite 1S, East Setauket, NY 11733. Telephone 800-257-4634 or 631-473-9300. Fax 631-642-0800.
B. Model: Dock Port ® Rolling Service Door and dock doors

2.02 MATERIALS OF HELICOPTER HANGAR DOORS
A. Curtain:
1. Slats: Constructed of interlocking, roll-formed 6” curved slats
a) Material:
i) Galvanized steel, G90 coating exterior (G60 interior), Structural Quality Grade C, as per ASTM A 653/ A 653 M, with minimum tensile strength of 75,000
Finish: Galvanized [Powder coated] [Baked enamel] (Minimum coating conforming with Coating Designation G-01 is required)
– OR –
ii) ASTM 240 Stainless steel 300 series
Finish: [Mill finish #2B] [#4 satin finish]
– OR –
iii) Aluminum
Finish: Mill Finish [Clear anodized] [Bronze anodized] [Black anodized]
b) Gauge: (Per manufacturer’s standard on dock doors)
i) Galvanized/Stainless: Minimum 16 gauge as manufacturer standard [14 gauge].
ii) Aluminum: Minimum 0.050” thick.
2. Windlocks of dock doors (as required):
a) Ductile cast iron, hot-dip galvanized endlocks riveted (solid rivets, minimum 3/16” thick) to each end of slats to prevent lateral movement and to limit slat deflection and bending stress. [Windlocks are dependent on windload and increase resistance to curtain jamming]
3. Bottom Bar of Pier Doors: (Size dependent on dimensions per manufacturer’s standard)
a) Two roll formed steel [aluminum] angles which extend into guides, designed to reinforce curtain bottom.
i) Galvanized Steel as per ASTM A 653/ A 653 M
Finish: Gray shop prime [Powder Coated] [Baked Enamel]
– OR –
ii) ASTM 240 Stainless Steel 300 Series
Finish: [Mill finish #2B] [#4 satin finish]
– OR –
iii) Aluminum
Finish: Mill Finish [Clear anodized] [Bronze anodized] [Black anodized]
B. Guides of Craneway Doors:
1. Guides shall be designed using structural angles with a minimum thickness of 1/4”, minimum 1 ¼” slotted connections, and removable bellmouth curtain stops to allow for curtain maintenance without removal of guides on dock doors. Bellmouth stops shall be flush with guide groove. Guides shall be fastened with minimum 3/8” bolts at minimum 24” o.c.
a) Material of Service Dock Doors:
i) ASTM A 36 Carbon Structural Steel
Finish: Gray shop prime coat [ASTM A 123 Galvanized] [baked enamel paint] [powder coated].
– OR –
ii) ASTM 276 Stainless Steel 300 Series
Finish: [Mill finish #2B] [#4 finish satin]
– OR –
iii) Extruded Aluminum
Finish: Mill Finish [Clear anodized] [Bronze anodized] [Black anodized]
C. Dock Doors, Pier Doors, Craneway Doors, Service Dock, and aircraft hangar Door Support Brackets and Mounting Plates:
1. Steel plate not less than 1/4” thick. Provide ball bearings at rotating support points. Bolt plates to wall mounting angles with minimum 1/2″ fasteners. Plate supports counterbalance assembly and forms end enclosures.
a) Material of Aircraft Hangar Doors:
i) ASTM A 36 Carbon Steel:
Finish: Gray shop prime coat [ASTM A 123 Galvanized] [Baked enamel paint] [Powder coated].
– OR –
ii) ASTM 240 Stainless Steel 300 Series
Finish: [Mill Finish #2B]
D. Counterbalance Assembly: Torsion on dock doors
1. Counterbalance assembly: Steel pipe barrel of a size capable of carrying a curtain load with a maximum deflection of 0.03” per foot of door width. Heat-treated helical torsion springs encased in a steel pipe and designed to include an overload factor of 25% to ensure minimum effort to operate. Sealed and prelubricated high speed ball bearing at rotating support points. Torsion spring charge wheel for applying spring torque and for future adjustments.
a) Material of Helicopter Hangar Doors:
i) ASTM A 36 Carbon Structural Steel
Finish: Gray shop prime coat [A 123 Hot-Dip Galvanized]
– OR –
ii) A 312 Stainless Steel 300 Series
Finish: Mill finish
E. This section includes: [Electric] operated Rolling Service Door.
1. Cycle life: Design doors of standard construction for normal use of 10,000 cycles standard [up to 400,000 cycles].
2. Design doors to withstand a windload of _____ psf.
Life Cycle of Dock Doors: High Cycle springs designed to satisfy 10m through 400m life cycles. Consult engineering if height exceeds width for any cycle above 20m. (Cycle defined as one time opening and closing of dock doors)
F. Hood:
1. 24 gauge steel [.040” aluminum]. Formed to fit the contour of the end brackets with reinforced top and bottom edges. Provide support bracing for doors wider than 20 feet at every 10 feet to prevent excessive sag. Fastened to end brackets.
2. Shape: Hexagon [square] [round]
3. Material of Pier Doors:
a) Galvanized Steel as per ASTM A 653/ A 653 M
Finish: [Baked enamel paint] [Powder coated]
– OR –
b) ASTM 240 Stainless Steel 300 Series:
Finish: [Mill finish #2B] [#4 satin finish]
– OR –
c) Aluminum
Finish: Mill Finish [Clear anodized] [Bronze anodized] [Black anodized]
4. [Fascia]: Galvanized [Stainless Steel] [Aluminum], provided where areas behind door hood are open. Materials and finish same as hood.
G. Locking of Craneway Doors:
1. Slide locks: Provide padlockable slide locks for latching and locking door on coil side bottom bar at each jamb extending into slots in guides. (Electric Interlocks recommended with motorized dock doors only)
2. [Cylinder Locks]: For tubular bottom bars.
3. Manual chain hoist: Provide padlockable chain keeper on guide.
H. [Weatherstripping]:
1. Bottom Bar: Neoprene loop astragal.
2. Guides: Snap-on brush seal.
3. Hood: Neoprene baffle.
4. Lintel baffle.

2.03 OPERATION of Dock Doors, Pier Doors, Craneway Doors, Service Dock, and aircraft hangar doors:
A. Opening/Closing: Manual push-up [Manual hand chain] [Manual hand crank] [Motor Operator].
B. [Motor Operators]:
a) Industrial-Duty, Alpine® Model Redi-Lift™ driven by heavy-duty V-belt with chain/sprocket secondary reduction. Optional auxiliary chain hoist. Maximum 1 hp. For use on doors up to 12’ x 12’.
– OR –
b) Heavy Industrial-Duty, Alpine® Model Redi-Master™ driven by heavy-duty worm gear in oil bath reduction. Standard auxiliary chain hoist. Standard ½ hp (maximum 3 hp)
c) [Stop Lock bearing]: To prevent dock doors from free falling in the event drive operation fails.
2. [Sensing Edges] (For double angle bottom bar): For motorized doors, sensing edges allow door to go up in case of obstruction. [Pneumatic Edge] [Electric Edge] [Wireless Edge].
a) Colors: Gray [Yellow] [Black] [White] [Yellow with black stripes]

2.04 Mounting of Aircraft Hangar Doors:
1. Interior face mounted on prepared opening.
2. Interior mounted between jambs and under lintel in a prepared opening.
3. Exterior face mounted on prepared opening

2.05 OPTIONAL SWINGING WICKET DOOR FOR HELICOPTER HANGAR DOORS:
A. Built with the curtain shall be a swinging type door designed and built as a part of the dock doors assembly. [Manual hand chain] [Manual hand crank] [Motor Operator].
B. Material:
1. Door may be [14, 16, 18 or 20] gauge.
2. Door may have [honeycomb, polystyrene, polyurethane or fiberglass] insulation.
C. Hardware:
1. Door comes complete with door, hinges, locking knob, and frame.

PART 3 – EXECUTION OF DOCK DOORS

3.01 EXAMINATION of Dock Doors, Pier Doors, Craneway Doors, Service Dock, and airecraft hangar doors:
A. Verify that dimensions are correct and project conditions are in accordance with manufacturer’s installation instructions; do not proceed with installation until unacceptable conditions have been corrected.

3.02 INSTALLATION OF CRANEWAY DOORS
A.
Install units in accordance with manufacturer’s instructions.
B. Ensure that units are installed plumb and true, free of warp or twist, and within tolerances specified by manufacturer for smooth operation of dock doors.

3.03 FIELD TESTING OF SERVICE DOCK DOORS
A. Test doors for regular operation.

3.04 DEMONSTRATION OF AIRCRAFT HANGAR DOORS
A. Instruct the Owner’s personnel in correct operation and maintenance of units.

3.05 ADJUST AND CLEAN the Dock Doors, Pier Doors, Craneway Doors, Service Dock, and airecraft hangar doors
A. Clean units in accordance with manufacturer’s instructions for dock doors.
B. Restore slight blemishes in finishes in accordance with manufacturer’s instructions to match original finish. Remove and provide new units where repairs are not acceptable to the Architect.

HEAVY DUTY DOORS CONSTRUCTION DESIGN (ISO 9001: 2015 Registered Company). These coiling doors and rolling steel doors are ideal for use in factories, parking garages, harsh environments, airports, rolling loading docks, ferry loading dock doors, and helicopter hanger doors. These heavy duty doors are also ideal for industrial and commercial buildings, security/impact areas, high traffic areas, shipping and ocean container loading and unloading areas, airport hangars, prisons, military bases and roll up pier doors and service dock doors.

The Alpine coiling Dock Port 6″ rolling steel doors, curved slat, pier doors are strong and come in contoured interlocking slat designs. Dock port doors can be hand-chain or motor operated. All of the service dock doors and rolling steel doors have operators that can be adapted to specific conditions.  Slide lock or pin locking mechanisms can be provided depending on the type of roll up door operation.  All heavy duty doors, service dock doors are durable, sturdy and economical to install and maintain. These heavy duty doors have specially designed coiling 6″ curved slats. These roll up coiling door slats are very durable. This titan of  service dock doors is the largest and strongest loading dock door available. 

These dock port coiling doors are massive in size and are great for your largest helicopter hangar door openings. They can be constructed 75 feet wide and 90 feet tall (for larger sizes consult Alpine Engineering team). The roll up coiling 6″ curved slats can withstand heavy loading dock impacts. These heavy duty doors can be equipped with a variety of roll up options. They are great as ferry loading dock doors and helicopter hangar doors because of their rugged construction. These dock port doors are constructed from 6″ tall curved slats that are made of 13 gauge, 14 gauge, and light as 18 gauge steel so they can take the impact of your ferry loading dock doors and helicopter hangar doors. See Alpine’s drawings for the heavy duty doors guide configurations and more.

Other Uses – Extreme width or height openings, heavy duty doors for ferry loading dock doors, port doors and helicopter hangar doors, extreme wind load environments, rolling steel doors that must be operated during significant wind conditions and offshore ship yards.

6" Curved Slat
6″ Curved Slat