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SINGLE POINT MOORING HAWSERS & MOORING LINES


The Best Custom Boat Lines, Custom Colored Ropes, & Special Assemblies made to Your Specifications Denver Rope through our partnership with DSR Corporation is proud to offer Custom, Made-to-Order, Single Point Mooring Hawser Assemblies

We custom assemble all types of Mooring Lines, Dock Lines, Anchor Lines, Mooring Hawsers, Towing Lines, Towing Hawsers, Towing Bridles, Winch Lines, and Recovery Tow Ropes using the best materials and methods the industry has to offer. All our lines are custom made-to-order per the customer’s specifications. Please consider the information below in advance of email ing us with your Request For Quotation. Denver Rope is a factory direct—wholesale distributor for Miami Cordage located in Miami, FL. A family run business serving the marine industry since 1965.

SPM Hawser RFQ’s should be Accompanied with Detailed Specifications to include Engineered Drawings when available.

single point mooring hawsers

Single Point Mooring Hawsers are typically used in the Oil & Gas Industry whereby an Oil Tanker (or any ship) can be securely moored to an offshore Floating Production Storage Offloading Facility (FPSO), offshore Floating Storage and Offloading Unit (FSO), Tanker Buoy as depicted above.

Although typically used in the applications describe above, the materials and techniques used to make Single Point Mooring Hawser can be applied to manufacture Mooring Lines, Mooring Hawsers, Tow Lines, and Towing Hawsers.
Another application for Single Point Mooring Hawsers is for Ocean Floor Anchoring Systems. Deep Sea Mooring Hawsers are highly specialized, performance engineered, and manufactured.
Please consider the following General Information regarding SPM Hawser Design Specifications and Features:
  • Typical SPM Hawser Rope Fiber Materials include Nylon, Polyester, Polypropylene / Polyester fiber blend
  • Typical SPM Hawser Rope Construction include 8-Strand, 12-Strand, and Double Braids
  • Typical SPM Hawsers are generally in the range 45m—100m + custom in length
  • Maximum SPM Hawser Single Leg Rope Diameter = 7-0” or 22” circular
  • Typical SPM Hawsers are either Single Leg or Double Leg / Grommet style
  • Typical SPM Hawsers can be supplied with Soft Covered Eyes and or Hard Thimble Eyes
  • Typical SPM Hawser Thimbles styles include Cast, Tubular, Bell Mouth, etc
  • Typical SPM Hawsers can be provided with Lace-on-Floats and or Orange Polyurethane / Inherent Buoyancy
  • Lace-on-Floats and Orange Polyurethane provide the required buoyancy, abrasion resistance, and fiber protection
  • Typical SPM Hawser Available Quality Certificates include: Loyds, BV, ABS / DNV
  • SPM Hawsers are Manufactured and Tested in accordance with OCMIF 2000 Guidelines


Single Point Mooring Hawser BrochureClick here to download our DSR – Single Point Mooring Hawser Brochure PDF
SPM (Single Point Mooring) The NWBS and energy absorption performance of hawsers can deteriorate due to certain influences and factors such as service life, cyclic load history, hawser type, construction, environmental conditions, and handling between use. Since the construction and type of material used to construct an SPM rope varies from location to location and the operational procedures will constantly change, DSR produces our NY Double BD from Polyamide Nylon 66. Nylon 66 has the highest energy absorption performance as compared to other synthetic fibers such as polyester, polyethylene and polypropylene. In addition, Nylon 66 exhibits better yarn-on-yarn abrasion performance. Using DSR’s NY Double B/D, you can expect superior service life in all marine applications including SPM Hawsers. Consider the two tables below for Single Leg style SPMs. The table on the top is for Single Point Mooring Hawsers provided in Double Braid Nylon Construction. The table on the bottom is for Single Point Mooring Hawsers provided in 12-Strand Plaited Nylon Construction. Both ropes have an inner core of Nylon 66 fiber and an outer braided cover of Nylon 6 fiber.
Double Braid Nylon SPM Table
Dia Circ Weight Breaking Strength
In Air Submergerd NDBS NWBS
mm Inch Kg/100m Kg/100m Ton Ton
48 6 153 15 57 51.2
56 7 210 21 76 58.2
64 8 274 28 98 88
72 9 333 34 122 110
80 10 400 40 148 133
88 11 480 48 175 157
96 12 574 58 208 157
104 13 588 69 245 220
112 14 788 79 280 251
120 15 929 94 325 292
128 16 1,038 105 363 326
136 17 1,200 121 418 375
144 18 1,332 134 460 413
152 19 1,436 148 500 449
160 20 1,523 164 550 494
168 21 1,790 181 605 543
176 22 1,980 200 673 604


12-Strand Plaited Nylon SPM Table
Dia Circ Weight Breaking Strength
In Air Submergerd NDBS NWBS
mm Inch Kg/100m Kg/100m Ton Ton
48 6 153 15 65 58.1
56 7 210 21 82 73.2
64 8 274 28 107 96.1
72 9 333 34 134 120
80 10 400 40 158 142
88 11 480 48 194 174
96 12 574 58 234 211
104 13 588 69 275 247
112 14 788 79 316 284
120 15 929 94 365 328
128 16 1,038 105 408 366
136 17 1,200 121 467 419
144 18 1,332 134 520 467
152 19 1,436 148 571 513
160 20 1,523 164 627 563
168 21 1,790 181 683 613
176 22 1,980 200 754 677

  • Manufactured and tested in accordance with the OCIMF 2000 Guidelines
  • NDBS: New Dry Breaking Strength / NWBS: New Wet breaking Strength
  • Specific gravity of swa water assume 1,025
  • Other sizes are available upon request (Maximum production size -Dia. 300mm)
DSR single point mooring
Denver Rope — Single Point Mooring Hawser Diagrams Consider the two diagrams below for SPMs. The top diagram depicts a Single Point Mooring Hawser provided in Single Leg Style. The bottom diagram depicts a Single Point Mooring Hawser provided in Double Leg or Grommet Style. Both SPMs are depicted with Lace-on-Floats and with Orange Polyurethane encapsulation at the rope ends and thimble splices. The last two diagrams depict 12-Strand Plaited Construction and Double Braid Construction, both with an outer braided cover.

Single Leg SPM single leg mooring hawser

Double Leg / Grommet SPM double leg grommet

Parallel Type (Nylon 12-Strand Plaited Rope) parallel type mooring hawser
Double Braid Type (Nylon Double Braid Rope) double braid type mooring hawser

Single Point Mooring Hawser provided with Lace-on-Floats

The picture above shows a Single Point Mooring Hawser provided with Lace-on-Floats and Yellow Chafe Guard protecting the white rope between the floats.


Single Point Mooring Hawser BrochureClick here to download our DSR – Single Point Mooring Hawser Brochure PDF

Single Point Mooring Hawser with Lace-on-Floats, Yellow Chafe Guard protecting the<br srcset=

white rope between the floats” width=”1922″ height=”1322″> The two pictures above show a Single Point Mooring Hawser provided with Lace-on-Floats, Yellow Chafe Guard protecting the
white rope between the floats, and Orange Polyurethane Encapsulation protecting the rope at the thimble splice. The thimbles are cast tubular type thimbles also provided with orange polyurethane encapsulation. The picture on the left is a Single Leg Style SPM Hawser and the picture on the right is a Double Leg / Grommet Style SPM Hawser.

Single Point Mooring Hawser

Above is an example of an Engineered Drawing for a Single Point Mooring Hawser (single leg type) provided with Lace-onFloats and Orange Polyurethane Encapsulation protecting the rope at the thimble splice. The thimbles are cast tubular type thimbles also provided with orange polyurethane encapsulation.


Single Point Mooring Hawsers, Mooring Hawsers, and Mooring Lines - Please consider that all of our Single Point Mooring Hawsers, Tow Hawsers, Mooring Hawsers, Tow Lines, and Mooring Lines are custom spliced-to-order with associated lead times. For faster turn-around times we do stock pre-spliced Poly-Dan Blue Mooring Line Coils—Ready to Ship. These lines are Polypropylene, 8-Strand, 720ft Overall Length, with a 6ft canvas covered eye splice on each end. These lines can also serve as a Tow Hawser or Mooring Hawser. Upon purchase of a coil, we can cut and re-splice the rope into separate lines, custom spliced-to-order.

Poly-Dan Blue Heavy Duty Mooring Line
Poly-Dan Blue
Our large diameter 8-Strand Poly-Dan Blue Mooring Lines are made from high-strength polypro. A perfect mooring line for large vessel, these limes are 720’ in length with 6’ canvas covered eyes each end.

        
  • Manufactured by DSR in Korea in accordance with ISO 900:2008, Lloyd’s certified
  • Mill Test certificate provided with each line
Part# Nominal Diameter          
Inch MM
Circ (in) Tensile Strength (lb)
PPR8SD2720 2 48 6 67,200
PPR8SD214720 2-1/4 56 7 78,000
PPR8SD212720 2-1/2 65 7.5 91,500
PPR8SD258720 2-5/8 68 8 103,500
PPR8SD3720 3 72 9 135,000
PPR8SD314720 3-1/4 80 10 171,000
PPR8SD4720 4 100 12 243,000


Heavy Marine Hawser Rope Hardware & Hawser Rope Fittings - For information regarding Hawser Rope Hardware & Hawser Rope Fitting to include Towing Thimbles, Mooring Thimbles, Rope Couplings, Rope Connectors, Shackles, Thimbles and Links, please continue to our HEAVY MARINE HAWSER ROPE HARDWARE & HAWSER ROPE FITTINGS webpage for additional information for your consideration. [Continue to HEAVY MARINE HAWSER ROPE HARDWARE & HAWSER ROPE FITTINGS webpage]




Single Point Mooring Hawser - Example One Diagram


mooring lines system drawing mooring lines system drawing mooring lines system drawing


Single Point Mooring Hawser - Example Two Diagram


mooring lines system drawing


Conversion Factors and Information
1 inch = 25.4 mm
12 inches = 1 foot
1 foot = 304.8 mm
1 meter = 3.28 ft
Circumference of a Circle
Circular = PI x Diameter

Weight
1 Pound = 0.4536 kG
1 kG = 2.2046 lbs

Force
1 Newton = 0.2248 lbs
1 kN = 224.8 lbs

Standard Hawser Lengths & MBS/WLL
50 ft / 100 ft / 300 ft / 600 ft / 720 ft / 900 ft / Custom
Where 1 Fathom = 6 feet
Minimum Breaking Strength (MBS) to Working Load Limit (WLL)
WLL for Very Conservative = MBS/10
WLL for Standard Conservative = MBS/5 (Denver Rope Selection)
WLL for Less Conservative = MBS/3
WLL = Engineered Calculation


single point Mooring LinesClick here to download our Diameter to Circumference Conversion Chart PDF

single point Mooring LinesClick here to download our Inches to Millimeter Conversion Chart PDF



tow lines custom rope For customer service and inquiries please call John 303-809-7274 or email john@denverrope.com
www.denverrope.com

Contact Us – Request Quotation

Call (303) 809-7274

Email john@denverrope.com

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