Harken Industrial Solutions for Commercial Marine

Harken Industrial provides a range of premium load-handling and rope access innovations for those working and operating in the commercial marine industry. Our strong and low-friction products have been designed to withstand the harshest environmental conditions; making your work on boats safer and easier at sea. From our diverse range of industrial pulleys, with breaking loads up to 95,000 kg (209,440 lb) and MOB recovery purchase systems, to our secure and safe Tight Radius rail-and-trolley system, designed to work as a movable anchorage point for fall restraint applications. View our leading solutions for a range of applications and scenarios below, including fall protection, human suspension, casualty transfer, rigging, lifting and load positioning. To find out more about how our equipment can make your work in the commercial marine industry safer, easier, and more efficient, contact Harken Industrial today.

Tight Radius System (TR31)
Tight Radius System (TR31)

Work Securely and Safely

The Tight Radius rail and trolley system is designed to work as a moveable anchorage point for fall restraint applications.

Rails are composed of straight and curved sections that change direction in both horizontal and vertical planes, allowing trolleys to run exceptionally smoothly around very tight radii and joints.

The system is independently tested and conforms to EN795.2012 Type B/D. It also meets ANSI Z359 and is OHSA compliant.

How Does it Work?

The TR31 continuous rail and trolley system allows a fully-harnessed crew member, safely tethered to the trolley, to move freely along the rail during inspection and maintenance, or when assisting in pilot transfer.

Rails can be either surface or stanchion mounted and are designed so the user never has to unhook and rehook the tether as he moves around the deck.

trolley design

Trolley Design

Strong: tested to 1200 kg (2645 lb) complies with 2 x MCA requirements

Compact: minimum intrusion on narrow deck and restricted work areas

Multidirectional load bearing

Anodized for maximum corrosion resistance

rail design

Rail Design

Vertical and horizontal operating planes

1.3 m unsupported span

200 mm radiused sections are standard. Straight track can be bent to a 350 mm radius or larger.

High-strength, marine grade 6061-T6 aluminum rail

Anodized for maximum protection

Countersunk M10 fasteners for flush fitting

rail design


Trolleys and rail are available in black or clear-anodized finishes for maximum corrosion protection.

delrin roller bearings

Delrin® Roller Bearings

No lubrication required

Low friction

Smooth movement

Roller fully supported on both ends

Brake Trolley Design

Screwpin on trolley keeps it in position when not in use



Installation and Maintenance

The system can be installed either at initial build or as a retrofit. Flush clean with fresh water and mild detergent. It is important to clean the trolley. Excessive build-up of grease, dirt, and salt will affect trolley movement.

Rail Bends:200 mm Radius

Part No.

Horizontal Bend

Part No.

Vertical outside bend 

IN203.CLEAR* IN206.CLEAR* 30º bend
IN205.CLEAR* IN208.CLEAR* 45º bend
IN204.CLEAR* IN207.CLEAR* 60º bend
IN201.CLEAR* IN202.CLEAR* 90º bend

*To order in black hardcoat-anodized aluminium, remove “.CLR or .CLEAR” from end of part number.

TR31 Rail & Accessories

Description Bend Information Bend Radius Arc Length** Weight Fasteners
mm ft/in m lb g mm
IN209.3M.CLEAR* Straight rail section Straight 200 9′ 10 1/16″ 3 8.47 3840 M10
IN213.3M.CLEAR* Straight rail section without holes Straight 200 9′ 10 1/16″ 3 8.49 3850
IN203.CLEAR* Corner track Horizontal 30° 200 6 11/16″ 0.17 0.57 260 M10
IN205.CLEAR* Corner track Horizontal 45° 200 8 11/16″ 0.22 0.77 350      M10
IN204.CLEAR* Corner track Horizontal 60° 200 10 5/8″ 0.27 0.98 440 M10
IN201.CLEAR* Corner track Horizontal 90° 200 14 3/16″ 0.36 1.39 630 M10
IN206.CLEAR* Corner track Vertical 30° 200 7 1/16″ 0.18 0.60 270 M10
IN208.CLEAR* Corner track Vertical 45° 200 9 1/16″ 0.23 0.81 370 M10
IN207.CLEAR* Corner track Vertical 60° 200 11″ 0.28 1.03 470 M10
IN202.CLEAR* Corner track Vertical 90° 200 15 5/16″ 0.39 1.46 660 M10
548 Endstop set (2.83″/71.8 mm) 0.13 60
IN211 Splice link 0.50 230

*To order black hardcoat-anodized, remove .CLEAR from end of part number. ** Arc length is to the inside of the radius.

TR31 Trolleys

Description Length Width Weight
in mm in mm lb g
IN210.CLEAR* Trolley 2.63 66.8 2.06 52.32 0.56 254
IN212.CLEAR* Brake Trolley 2.73 69.2 2.6 66.04 0.60 270

*To order black hardcoat-anodized, remove .CLEAR from end of part number.

Contact Harken Industrial

If you would like further information on this product, please contact us: info@harkenindustrial.com or +44 (0)1590 689122.


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

Read more

Used for:
Adjustable Anchorage Point
Fall Restraint

Round (S) EN795:2012 Class A Anchor
Round (S) EN795:2012 Class A Anchor

Part No. IN627

TESTED TO EN795:2012 CLASS A and requirements of BS 8610 Draft May 2017


The IN627 stainless steel round anchorage point is designed to be permanently installed on a structure so that an anchor device, or personal protective equipment can be attached to it, facilitating safe working at height.

The padeye is appropriate for single-person use for both fall arrest and rope access with an energy absorber to EN 355. It is large enough to allow articulation, will accommodate karabiners, and is cost effective.

  • Please note – actual product will have a serial number and maximum load etched on.

cross image no text

WARNING! – This product is part of a personal fall arrest system.

It is the installers responsibility to ensure the suitability of base materials into which the structural anchor is fixed.

Alterations or misuse of this equipment, or failure to follow the instructions contained in the manual, may result in a fall or failure to arrest a fall leading to serious injury or death.




























118 grams (4.16 oz)


17-4 PH stainless

Maximum rated load

8.75 kN (goods and equipment)

Breaking load

35 kN

Recommended fasteners

4 x M6 (recommend A2 70 SS)

Certified to EN 795:2012

BS 8610 Draft May 2017

One user



Read more

Used for:
Fender Attachments
Lashing Points
Anchorage Points

Trolley and Rail Systems
Trolley and Rail Systems

LOW-FRICTION LINEAR MOVEMENT                    Trolley Information  Rail Information

Harken Industrial trolley and rail systems provide a simple, low-maintenance way to move loads smoothly. Trolleys feature recirculating ball bearings housed in strong, lightweight, corrosion-resistant aluminum for dependable, low-friction linear travel.


Low Friction, Smooth Rolling

Harken Industrial rails and trolleys provide a low-friction rolling solution under both compression and tension loads.

Torlon® or Delrin® ball bearings reduce friction to move loads easily, and require no lubrication. Stainless wire guides keep ball bearings captive, allowing trolleys to be easily removed for maintenance.

Harken trolleys are designed with an open-ball race for easy maintenance. The rail can be bent to various radii, allowing the trolley to run freely.


Curved Rail

Rails can be bent to suit various applications. Minor bends can be made when the rail is installed.

If the rail requires greater bend, Harken Industrial can provide horizontal, vertical, or compound curves to specification.

Contact Harken Industrial for more details.

Trolleys and Rails

Harken Industrial trolleys are available in a variety of sizes and configurations. View our dedicated trolleys page for further information.

The rail is a simple, strong, low-maintenance system on which the load travels. View our rails page for more details.


Harken Industrial trolley and rail systems can be used in a wide range of applications and industries, such as:

• Construction
• Renewable energy
• Facilities management
• Vessel maintenance
• Material handling
• Theatrical
• Architectural
• Utilities, oil & gas
• Exercise

Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Delrin is a registered trademark of E. I du Pont de Nemours and Company or its affiliates.

Read more

Used for:
Casualty Recovery
Moving Loads

Access Rail
Access Rail


The Access Rail system is designed for use as an adjustable anchorage point for rope access and fall arrest. It provides the operator freedom of vertical and horizontal movement at height and also the ability to lock into position while working.

Harken Industrial offers two sizes of Access Rail, 27 mm and 32 mm.

If you are unsure which system is right for you, please  contact us for advice.

AR Design


Lightweight trolleys are constructed of strong, one-piece solid aluminum. The adjustable pinstop allows trolleys to be moved along the rail and locked into a new location.

AR Durability


Trolleys and rails are available in black hardcoat or clear-anodized finishes for maximum corrosion protection.

AR Ball Bearings

Low-maintenance Ball Bearings

Torlon® ball bearings handle high loads, reducing friction so the trolley moves smoothly along the track. Retaining clips keep ball bearings captive when the trolleys are removed for maintenance.

AR Options


The Access Rail system can be mounted in three (3) horizontal planes. A wheel toggle
attachment can be used for discrete over-edge parapet and inclined surface installations.



27 mm & 32 mm Access Rail systems are CE certified and can be used for human suspension.


Industry Regulations

Systems are independently tested and fully compliant with EN795:2012 Type B/D. They also meet ANSI Z359 and are OSHA compliant.

Application and Maintenance

The Access Rail is ideal for use in a wide range of applications and industries:

    • Construction/steel frame and envelope projects
    • Renewable energy/blade cleaning
    • Facilities management/asset integrity inspections
    • Vessel maintenance
    • Stage management, filming and rigging
    • Architectural/building survey
    • Utility and oil & gas sectors

Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Access Rail case study

Product Range

Rope access/
Users/3 meter segment Certifications Static strength
EN 795:2012 CEN/TS 16415:2013
R27 2 13 0.3m
R27LS 4 15 3m
R32 4 22 0.3m
TR31 1 12 1.3m


Read more

Used for:
Fall Protection
Human Suspension

Shock Mitigation Seat Rail System
Shock Mitigation Seat Rail System


This system is specifically designed for the marine environment, giving you a flexible cockpit layout with fast, hassle-free reconfiguration. We tested this system over 20 kN (25 kN for the 27mm rail) to meet HSC regulations.

How Does it Work? 

Seats are mounted on four trolleys that run on parallel rails. Two of the trolleys have pinstops that fit into the holes in the rails. Two trolleys are free sliding. To adjust the trolley location, simply raise the two pinstops and slide to a new location.

Trolley Design

  • Strong – tested to over 20 kN (25 kN for the 27mm rail)
  • Adaptable – can be fitted to dive tank racks, weapons racks, deck boxes etc.
  • Compact – minimum intrusion on cockpit sole
  • Black hardcoat-anodized; maximum corrosion resistance

Rail Design

  • High strength 6061-T6 aluminum low-profile rail
  • Hardcoat-anodized for maximum protection
  • Pinstop holes for maximum flexibility in seat spacing
  • Countersunk fasteners for flush fitting
  • Underside of rail recess for mastic sealant

RT delrin insulating sliders


Delrin® Insulating Sliders

No metal-to-metal contact
No lubrication required
Low friction
Smooth movement
Minimum rattle

RT delrin insulating sliders 2


Spring Mounted Pinstops

Secure seat location
Quick and easy adjustment

RT end stops



Removable pinstop end allows seats to come off rail

RT end stops 2



Low-profile endstop for smooth, snag-free end

Installation and Maintenance

Flush clean with fresh water and mild detergent. To reduce friction further, use McLube® high-performance dry lubricant. Do not use oils or greases. For added protection against corrosion, Harken Industrial recommends using Tef-Gel® corrosion eliminator on the fasteners when installing the rail.

The Shock Mitigation Seat Rail System should only be installed by a competent person or organization in order to meet the requirements of HSC regulations.

All rails listed are designed to use stainless steel fasteners. Attachment to the vessel must be in accordance with HSC regulations. Harken Industrial does not recommend installing with aluminium fasteners. Use of non- stainless-steel fasteners is at the liability of the installer and must be designed to meet the requirements of HSC regulations.

Always use thread locking solution or locknuts. Precise rail alignment at joints is critical for smooth-running cars.

Rail & Accessories

Description Length Mounting Hole spacing* Fasteners Endstop Trim Cap Splice Link
ft/in mm in mm in mm
22 mm
2751.600MM Low-beam pinstop metric rail 1′ 11 5/8″ 0.6 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.1M Low-beam pinstop metric rail 3′ 3 3/8″ 1 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.1.5M Low-beam pinstop metric rail 4′ 11 1/16″ 1.5 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.2M Low-beam pinstop metric rail 6′ 6 3/4″ 2 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.3.6M Low-beam pinstop metric rail 11’ 9 3/4” 3.6 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2722 Trim cap set
E2200 Endstop set
27 mm
R27.1M Low-beam pinstop metric rail 3′ 3 3/8″ 1 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.1.2M Low-beam pinstop metric rail 3’ 11 1/4″ 1.2 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.1.5M Low-beam pinstop metric rail 4’ 11 1/16” 1.5 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.1.8M Low-beam pinstop metric rail 5’ 10 13/16” 1.8 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.2M Low-beam pinstop metric rail 6′ 6 3/4″ 2 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.2.5M Low-beam pinstop metric rail 8′ 2 7/16″ 2.5 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.3M Low-beam pinstop metric rail 9′ 10 1/16″ 3 3 15/16 100 5/16 FH 8 FH 1621 1619
1621 Trim cap set
E2700 Endstop set

*First mounting hole distance from end of track: 50 mm (1 31/32″).


Description Length Width Weight Fits
in mm in mm lb g
22 mm
IN120 22 mm slider car with pinstop without bail 3.3 84 1.29 33 0.208 94.68 2751
IN121 22 mm slider car only 3.3 84 1.29 33 0.208 94.68 2751
27 mm
IN152 Slider utility trolley with 3 x M8 holes 5 127 1 5/8 42 0.51 233 R27
IN153 Slider pinstop utility trolley with 3 x M8 holes 5 127 1 5/8 42 0.54 246 R27

McLube is a registered trademark of McGee Industries.
Tef-Gel is a registered trademark of Ultra Safety Systems, Inc.
Delrin is a registered trademark of E.I. du Pont de Nemoursand Company or its affiliates.


RIB Seat Track case study
Read more

Used for:
RIB Seat Positioning

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

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.

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


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


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


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.

Oceanic block options


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

Product Details

Cheek gap
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.

Read more

Used for:
Cable Laying
Leading Towed Arrays Overboard

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® 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.


ESP Pulleys

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.

Product Range

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
in mm in mm lb g in mm in mm lb kN
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
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.

Read more

Used for:
Davit Arm Systems
Lifting & Rigging

LokHead Winch
LokHead Winch

Part No.

INLH500 LokHead winch and handle
INLH500KIT  LokHead winch kit


NEW mounting plate and tripod adapter now available.

The innovative LokHead winch is a portable or fix-mounted load-lifting, personal-hoisting winch used with an unlimited length of fiber rope. The captive head allows the winch to be used safely, and keeps the rope from accidentally releasing. Perfect for fixed or temporary applications and rescue.

Simple to use and Ideal for Diverse Applications

The LokHead winch can be used anywhere a load needs to be lifted or lowered. Rigged to a tripod, it can be used for confined-space rescue operations, for load moving/hauling, and man-riding.

Maintenance is Easy

The simple construction requires no lubrication and can be flushed clean with fresh water.


Weighing just 4.2 kg (9.3 lb), the LokHead winch can be incorporated with a compatible mounting bracket into a rescue/lifting system without significantly increasing overall weight.


The braking system controls descent and provides workers protection against free-falls. The encapsulating jaw cover protects fingers and clothing from catching in the winch.

Ergonomic with new image


Easy to rig and efficient, the LokHead makes the most of the operator’s efforts. The winch offers two gears; 15:1 for low load/high speed use and 40:1 for higher load applications.


The winch is designed for use with fiber rope 10 –12.7 mm (3/8 –1/2″) in diameter and unlimited line length.

Manual or powered


The winch can be driven manually with the provided B10AL handle. Alternatively, use a compatible power drill with the power tool adaptor to drive the winch.

The winch is also certified under EN1496 for Human Suspension and EN13157 Machinery Directive for lifting goods and equipment.

Contact Us

For more information please contact Harken Industrial: +44 (0)1590 689122 or email us via info@harkenindustrial.com

Product Range

Description Rope Ø Weight Max rated load
Min Max
in mm in mm lb kg lb kN
INLH500 LokHead winch 3/8 10 1/2 12.7 9.3 4.2 1100 5
INLH500KIT LokHead winch kit 3/8 10 1/2 12.7 44 20 1100 5
Read more

Used for:
Lifting & Lowering
Rescue Operations

McLube® Antifoul Alternative
McLube® Antifoul Alternative

Part No. 7881

The Environmentally-Friendly Antifoul Speed Polish for Everything below the Waterline!

McLube’s Antifoul Alternative is a breakthrough high-gloss; non-abrasive polish that inhibits marine growth below the waterline, keeping hulls fast and clean for weeks at a time. Citrus based, it is earth-friendly, biodegradable and safe to use.

Antifoul Alternative applies quickly and easily onto all hull types and surfaces, including Hypalon® tubes and other plastics and below-water metal fittings e.g. props and drive shafts. Powerful UV protection keeps cleaning to a minimum when the hull comes out of the water.


Everywhere below the waterline – hulls, props, engine drive shafts, RIB tubes.


  • Combines McLube’s bonded PTFE suspension system with citrus-based, long-lasting, high-gloss polish
  • Quick and easy to apply to any hull surface or underwater fitting
  • Combats, stifles marine growth and slime; keeps hulls fast and clean for weeks
  • Four times the UV protection of most marine polishes
  • Reduces drag and increases efficiency on all hull types

Got a Question?

Please contact us via phone or email.

Please visit www.mclubemarine.com for detailed information on product application, benefits, performance, and field testing.

McLube is a registered trademark of McGee Industries, Inc.
Hypalon is a registered trademark of E.I. DuPont de Nemours and Company.


McLube® Case Study
Read more

Used for:
High-gloss Polish
Prevents Marine Growth

Purchase Systems
Purchase Systems

Part No. 
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.

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.


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

Description Range of Travel Max Rated Load for Goods/Equipment (BL/4) SWL for Human Suspension
ft m lb kN lb kN lb kg
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.

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Used for:
Rigging Deviations
MOB Recovery
Life Raft Recovery

Riggers Winch
Riggers Winch

Riggers Winch 500 = INRW500
Riggers Winch 200 = INRW200

A Lightweight, CE Certified, Portable Winch

The Riggers Winch provides the user with a lightweight, CE certified, portable winch mounted to a robust adaptor plate. Offered in two (2) sizes, the single-speed 200 model weighs only 4 kg (8 lb) and has a maximum rated load of 1.96 kN. The 2-speed 500 model weighs just 7 kg (15.4 lb). Its maximum rated load of 4.90 kN maximizes operator pulling power by up to 40 times. Multiple mounting options provide versatility when working in challenging or remote environments.

Simple to use and Ideal for Diverse Applications

  • Utility masts
  • Telecoms
  • Marine
  • Wind turbine transition piece davits
  • Stage and theater rigging
  • Construction
  • Confined space
  • Access and rescue


UMP design


The mounting plate is sculpted to remove excess weight and provides multiple attachment points without compromising strength. The pigtail line lead ensures correct alignment and loading of the winch for maximum efficiency.

UMP winch


Winches feature 17-4 PH stainless steel load-carrying gears and pins for strength and durability. The unique drum design maximizes grip on the rope. Packages include a universal mounting plate, Harken 10″ winch handle, and Harken winches 40.2 (500 model) or 20 (200 model).


UMP fiber rope

Fiber Rope 

The winch is designed for use with fiber rope up to 12 mm (1/2″) in diameter, reducing weight and allowing alignment to the load. Smooth surfaces and chafe-free design are amenable to fiber rope.

UMP options


For use with multiple attachments depending on the environment and industry; from ratchet straps, M10 bolts, karabiners, to scaffold clamps.



CE certified under EN13157 (Machinery Directive), please see ‘Specification’ Tab for load details.


Product Range

Description Rope Ø Weight Max Rated Load Breaking Load
Min Max
in mm in mm lb kg lb kN lb kN
INRW200 Riggers Winch 200 5/16 8 1/2 12 8 4 440 2 4400 20
INRW500 Riggers Winch 500 5/16 8 1/2 12 15.4 7 1100 5 5500 25


Riggers winch 500 includes: Universal mounting plate, 40.2 Harken winch and Harken 10 inch winch handle

Riggers winch 200 includes: Universal mounting plate, 20 Harken winch and Harken 10 inch winch handle

Contact Harken Industrial for further information.

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Used for:
Pontoon Positioning
Load Positioning

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


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

SBL 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

Description Sheave
Weight Max
Fiber Rope Ø
Rated 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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Used for:
Lifting & Slinging
Buoy Recovery
Load Testing

TR31 Press Release and Video
Harken Industrial introduces the TR31 Tight Radius rail and trolley system for commercial marine.
See It In Action

Case Study – Sliding Seats on RIBs
Harken Industrial designed a solution using existing product which would allow the customer to easily reconfigure the cockpit layout quickly and without any hassle.
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Case Study – Laying Cables at Sea
Offshore research vessels have been using large heavy blocks to lay research cables. These blocks are cumbersome, damage the fiber optic cables and require multiple technicians to move them into position. Find out more about the solution offered by Harken Industrial.
Read More Safer Working Practices