Pulleys - PERFORMANCE PACKED ENGINEERING Harken pulleys facilitate low-friction pulling power for any fiber-rope application
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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.
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:
- 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® 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.
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.
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.
Sheaves feature sleeve bearings to handle high static loads. Ball bearings handle sideloads. Aluminum sideplates make ESP pulleys strong and durable.
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.
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.
All Harken Industrial pulleys listed below are CE certified.
|Description||Sheave Ø||Length||Weight||Shackle Pin Ø||Max Fiber Rope Ø*||Max Rated Load||Use With|
|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|
|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|
|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|
|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.
IN105 – 6:1 purchase system
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.
Delrin® ball bearings provide low-friction, easy rope release under load. Ball bearings are UV-stabilized for maximum protection.
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.
Purcahse systems are supplied prereeved and fully assembled. The securing knot is sealed to prevent irreparable damage to the system.
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.
|Description||Range of Travel||Max Rated Load for Goods/Equipment (BL/4)||SWL for Human Suspension
|IN105||6:1 purchase system||4||1.2||330||1.5|
|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.
SBL Snatch Pulley
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.
- Commercial rigging
- Commercial marine
Maintenance is Simple
The simple construction requires no lubrication. Simply flush with fresh water to keep your SBL Snatch pulley free rolling.
Side-opening plates allow the pulleys to be rigged easily. The soft attachment system eliminates heavy swivels and shackles.
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.
Snatch pulleys are used with fiber rope up to 25 mm (1″) in diameter. Smooth surfaces and chafe-free design minimize wear.
Fiber Rope Ø
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
Light Enough to Align the Load
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 (19.7″) sheave-diameter block is light enough to align to the load, optimizing cable tracking.
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.
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.
Sideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength, durability, and corrosion resistance. They are PTFE-coated for a smooth surface.
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.
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.
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. Plastic isolators and helicoils are used to minimize corrosion between aluminum and stainless steel. The Oceanic cable block is UNOLS compliant.
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.