PULLEYS – PERFORMANCE PACKED ENGINEERING

Harken Industrial pulleys provide low-friction pulling power for any fiber-rope application. Designed to be as lightweight and small as possible for the load capacity, they are easy to transport and install.

We offer over 470 types of pulleys, with breaking loads up to 12,000 kg. Sheave diameters range from 16 – 150 mm with options of single, double, and triple sheaves featuring ratchets, cleats, beckets, and padeye attachments. All pulleys are certified to EN13157 Machinery Directive for lifting goods and equipment.

Alongside our standard range of pulleys, we also offer purchase systems, SBL snatch pulleys to make light work of rigging and deployment, and Oceanic Cable Blocks, commonly used on research vessels to safely lead data cables and towed objects overboard.

Harken Industrial pulleys can be used in a number of rope-handling applications and scenarios, including load towing /securing, cable laying, commercial rigging and stunt work.

Find out more about our diverse range of pulleys, blocks and purchase systems by clicking on the individual product pages below. Alternatively, if you require further information on our products, contact the Harken Industrial team.

EN13157 Pulleys
EN13157 Pulleys

Harken Industrial has a Solution to any Pulling Problem

We offer over 470 types of pulleys with breaking loads from 0.5 to 946 kN. Sheave diameters range from 16 – 150 mm with the option of single, double, and triple sheaves featuring ratchets, cleats, beckets, opening sideplates, and padeye attachments. Attachment options include fixed head, swivel head, cheek attach, or soft attach.

Simple to use and Ideal for Diverse Applications

Harken Industrial pulleys can be used in rope-handling applications across many industries:

  • Theatrical
  • Stunt work
  • Cable laying
  • Load towing/securing

Maintenance is Easy

The simple construction requires no lubrication. Simply flush with fresh water to keep bearings free rolling.

Black-magic

Black Magic® Air® Pulleys

With high strength-to-weight ratios and free-rolling, high-load roller bearings, Black Magic Air pulleys handle high dynamic and static loads where friction is an issue.

Midrange

 

 

 

 

Classic Midrange Pulleys

These robust pulleys are ideal for handling high loads. Free-running Delrin® ball bearings roll on flat races to allow fast haul and release under high or low loads.

 

Hexaratchet

Classic Midrange Hexaratchet

Midrange Hexaratchet pulleys grip loaded lines, relieving holding loads while maintaining quick ease and haul with complete control. A switch on the side engages and disengages the ratchet mechanism.

ESP

ESP Pulleys

Sheaves feature sleeve bearings to handle high static loads. Ball bearings handle sideloads. Aluminum sideplates make ESP pulleys strong and durable.

T2

T2 Soft-attach Pulleys

These lightweight, low-friction pulleys tie, splice, or lash to almost anything. With no metal components, they are exceptionally corrosion and conduction-proof as well as spark free.

PS CE

Certification

Harken Industrial offers a wide range of EN13157 certified pulleys for hand-operated lifting equipment.

The table below includes a selection from Harken Industrial’s range of CE pulleys. If you would like further information on our range of pulleys, please contact us.

Product Range

All Harken Industrial pulleys listed below are CE certified.

Part
No.
Description Sheave Ø Length Weight Shackle Pin Ø Max Fiber Rope Ø* Max Rated Load Use With
in mm in mm lb g in mm in mm lb kN
Carbo
IN2660 Single Carbo swivel 2 15/16 75 5 3/8 137 0.43 195 1/4 6 9/16 14 224 1 Fiber
IN2661 Single Carbo swivel w/becket 2 15/16 75 6 1/2 165 0.47 214 1/4 6 9/16 14 224 1 Fiber
IN2662 Double Carbo swivel 2 15/16 75 6 152 0.88 402 5/16 8 9/16 14 562 2.5 Fiber
Classic Midrange
IN1540 Single Midrange 3 76 6 1/8 156 0.81 367 5/16 8 9/16 14 1124 5 Fiber
IN1544 Double Midrange 3 76 7 1/2 191 1.59 723 5/16 8 9/16 14 1573 7 Fiber
IN1545 Double Midrange w/becket 3 76 8 1/2 216 1.65 751 5/16 8 9/16 14 1573 7 Fiber
IN1549SSP Single Midrange Hexaratchet 3 76 6 1/8 156 0.88 397 5/16 8 9/16 14 1124 5 Fiber
ESP
IN6059 Single ESP swivel 2 1/4 57 5 1/2 140 0.48 218 5/16 8 5/8 16 900 4 Fiber
IN6050 ESP teardrop 2 1/4 57 3 11/16 93.5 0.27 122 5/8 16 900 4 Fiber
IN6058 Single ESP swivel 3; 2 15/16 75 6 1/4 159 0.75 340 5/16 8 3/4 19 1460 6.5 Fiber
IN6056 ESP teardrop 3; 2 15/16 75 4 5/8 117 0.49 221 3/4 19 1236 5.5 Fiber
Black Magic
IN3226 Single Black Magic swivel 2 1/4 57 4 11/16 119 0.34 154 1/4 6 7/16 12 1124 5 Fiber
IN3215 Single Black Magic swivel 2 1/4 57 4 11/16 119 0.34 152 1/4 6 7/16 12 1124 5 Fiber
IN3214 Single Black Magic loop** 2 1/4 57 3 76 0.2 92 7/16 12 674 3 Fiber
IN3243 Single Black Magic swivel 2 15/16 75 5 1/8 129 0.74 335 5/16 8 9/16 14 1348 6 Fiber
IN3231 Single Black Magic swivel 2 15/16 75 5 1/8 129 0.73 331 5/16 8 9/16 14 2248 10 Fiber
IN3246 Single Black Magic swivel 3 15/16 100 8 203 1.37 623 3/8 10 5/8 16 3372 15 Fiber
IN3256 Single Black Magic swivel 4 15/16 125 10 254 2.33 1058 1/2 12 3/4 19 4495 20 Fiber
IN3255 Single Black Magic loop** 4 15/16 125 6 163 1.48 674 3/4 19 4495 20 Fiber
IN3262 Single swivel 5 15/16 150 12 305 4.05 1840 5/8 16 1 25 6969 31 Fiber

*Max wire rope Ø is dependent on wire construction and application. Please contact Harken Industrial for information. **Loop not included.

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Purchase Systems
Purchase Systems

Contact Harken Industrial UK for purchase system sales/product information.

Part No. 
IN2624 – 4:1 purchase system (Contact Harken UK)
443.DRPS.2M – CE 6:1 diver recovery purchase system – 2 m throw*
443.DRPS.10M – CE 6:1 diver recovery purchase system – 10 m throw*
443.DRPS.15M – CE 6:1 diver recovery purchase system – 15 m throw*

*custom lengths available from 1 to 50 m

Lightweight, Compact, Low-friction, Certified

Harken Industrial purchase systems increase operation strength, providing low-friction pulling power in a wide variety of pulling/lifting operations. Systems can be used on their own, or easily combined with an existing system for tensioning, deviation, or casualty transfer. Purchase systems come fully rigged with tamper-evident termination.

Simple to Use in Load-assist Applications

Harken Industrial purchase systems are used by emergency services and rescue personnel to help transfer loads and individuals from working ropes to alternates. The systems are also used to transfer loads in deviation, and to take the load when lifting inanimate objects.

Maintenance is Easy

To clean, simply flush pulleys with fresh water. As with all equipment, check regularly to make sure it is in good working order. Check rope for chafe and wear. Make sure tamper-evident seals are intact.

LA low friction sheave

Low-friction Sheave

Delrin® ball bearings provide low-friction, easy rope release under load. Ball bearings are UV-stabilized for maximum protection.

LA ball bearing cam cleats

Ball Bearing Cam Cleats

Harken ball bearing cam cleats hold rope securely and release easily under load. Multiple rows of ball bearings reduce friction. The cam’s V-shape guides rope for easy entry.

LA fairlead

Tamper Evident

Purcahse systems are supplied prereeved and fully assembled. The securing knot is sealed to prevent irreparable damage to the system.

PS CE

CE Certification

CE certified under EN 13157 (Machinery Directive). IN105 has a maximum rated load of 1.47 kN; IN2624 has a maximum rated load of 1.98 kN.

Polyester Rope and Safety Compliance

Purchase systems use polyester based rope in various sizes. The polyester braided covers are UV and abrasion resistant. Harken Industrial purchase systems are also serial numbered for full traceability. The 443.DRPS is supplied with an individual proof test certificate.

Product Range

Part
No.
Description Range of Travel Max Rated Load for Goods/Equipment (BL/4) SWL for Human Suspension
(BL/10)
Individual
Proof-tested
ft m lb kN lb kN lb kg
IN2624 4:1 purchase system 6.5 2 445 2
443.DRPS.2M CE 6:1 diver recovery purchase system – 2 m throw* 6.6 2 937 4.25 375 1.7 660 300
443.DRPS.10M CE 6:1 diver recovery purchase system – 10 m throw* 32.8 10 937 4.25 375 1.7 660 300
443.DRPS.15M CE 6:1 diver recovery purchase system – 15 m throw* 49.2 15 937 4.25 375 1.7 660 300

 

Delrin is a registered trademark of E.I duPont de Nemours and Company or its affiliates.

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SBL Snatch Pulley
SBL Snatch Pulley

Part No. 
IN10636 – Max rated load 106 kN
IN10639 – Max rated load 133 kN
IN11038 – Max rated load 222 kN

The Ultimate in Power-to-Weight Efficiency

SBL (strong but light) Snatch pulleys maximize the benefits of fiber rope within a safer, more ergonomic working environment. Weighing less than 25% of comparable pulleys, they make light work of rigging and deployment.

Even the largest pulley, with a breaking load of 95000 kg (210000 lbs), weighs only 22.5 kg (50 lb). The sculpted hardcoat-anodized sheaves run on high-efficiency composite bearings, reducing rope wear.

Ideal for Diverse Applications

SBL Snatch pulleys can be used for towing, mooring, pulling, and lifting across many industries.

  • Utilities
  • Commercial rigging
  • Offshore
  • Renewables
  • Commercial marine
  • Transport
  • Salvage
  • Military

Maintenance is Simple

The simple construction requires no lubrication. Simply flush with fresh water to keep your SBL Snatch pulley free rolling.

SBL design

Design

Side-opening plates allow the pulleys to be rigged easily. The soft attachment system eliminates heavy swivels and shackles.

SBL materials

Materials

Sideplates are hardcoat-anodized, UV-stabilized 6061-T6 aluminum for maximum protection. Sheaves run smoothly and maintain efficiency at high loads using PTFE-coated ULC bearing technology.

SBL materials

Fiber Rope

Snatch pulleys are used with fiber rope up to 25 mm (1″) in diameter. Smooth surfaces and chafe-free design minimize wear.

 

 

Product Details

Part
No.
Description Sheave
Ø
Weight Max
Fiber Rope Ø
Max
Rated Load
Breaking
Load
in mm lb kg in mm lb kN lb kN
IN10636 SBL 12T 6.5 165 8.8 4 1 25 23829 106 96000 392
IN10639 SBL 20T 9 221 20.5 9.3 1 25 29899 133 120000 529
IN11038 SBL 50T 11 279 49.6 22.5 1 25 49907 222 210000 931
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Oceanic Cable Block
Oceanic Cable Block

IN6989.250 – Cable ∅ – 6 mm
IN6989.322 – Cable ∅ – 8 mm
IN6989.375 – Cable ∅ – 9.5 mm
IN9417.750 – Cable ∅ – 19 mm
IN11118.680 – Cable ∅ – 17 mm
IN11118.563 – Cable ∅ – 17 mm

Aligns the Load for Optimized Cable Tracking

Harken Industrial Oceanic Cable blocks are used on research vessels to safely lead data cables and towed objects overboard. At only 19.3 kg (42.5 lb), the 500 mm (20″) sheave-diameter block is light enough to align to the load, optimizing cable tracking.

Oceanographic Research

The Oceanic Cable block is used by Woods Hole Oceanographic Institute, University of Rhode Island (USA), and University of Alaska – Fairbanks oceanographic research departments, as well as many other research organizations.

Easy Maintenance

Flushing the block with fresh water after use will keep the dry-running bearings free rolling. If further maintenance is required, one hex wrench is all you need for disassembly. All the bearings are captive, so no need to worry about losing parts.

Oceanic block durability

Durability

Sideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength, durability, and corrosion resistance. They are PTFE-coated for a smooth surface.

Oceanic block bearings

Bearings

Delrin® roller bearings are housed in a center cage to keep them parallel for low-friction efficiency. The large diameter bearing cage reduces friction and spreads the load. Captive Torlon® ball bearings handle sideloads.


Oceanic block large diameter sheave

Large Diameter Sheave 

The block’s open center helps move the center of gravity toward the shackle, improving the block’s ability to align with the load. The sheave’s groove detailing can be designed to suit specific data cable diameters.

Oceanic block Design

Design

The block’s wide throat allows passage of data cable terminals. The sheave’s durable, lightweight Nylatron® material has high mechanical stiffness, resists static electricity, and has excellent wear resistance. Helicoils add strength while plastic isolators are used to minimize corrosion between aluminium and stainless steel.

Oceanic block options

Options

The block is designed to work with an optional magnetic Hall Effect Sensor.

Product Details

Part
No.
Sheave
Ø
Cheek gap
Ø
Cable
Ø
Weight Max
Rated Load
in mm in mm in mm lb kg lb kN
IN8260 20 500 2.25 57 0.25 6 42 19 19000 84.5
IN12771.322* 20 500 2.25 57 0.322 8 42 19 19000 84.5
IN6989 20 500 2.25 57 0.338 8.5 42 19 19000 84.5
IN8355 20 500 2.25 57 0.375 9.5 42 19 19000 84.5
IN6989.590 20 500 2.25 57 0.59 15 42 19 19000 84.5
IN9417 30 750 4 101.6 0.75 19 150 68 40000 175.5
IN11118.563 30.5 775 4 101.6 0.563 14.3 233 105.68 80000 355
IN11118.680 30.5 775 4 101.6 0.68 17 233 105.68 80000 355

Compliant with UNOLS Research Vessel Safety Standards, Appendix B * Freeze tolerant version

 

Oceanic cable block case study

 

Nylatron is a registered trademark of the Quadrant Group.
Delrin is a registered trademark of E.I duPont de Nemours and company or its affiliates.
Torlon is a registered trademark of Solvay Advanced Polymers.

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