30 kN Studlink Anchor Windlass
30 kN Studlink Anchor Windlass
Two 30 kN hydraulic studlink anchor windlasses built in Yatala for a commercial transport barge, with chain gypsies to suit 26 mm studlink anchor chain and designed, built and tested to Lloyd's rules.
Anchor Windlass Project Overview
Custom-built 30 kN hydraulic anchor windlasses for a commercial transport barge
Two 30 kN hydraulic anchor windlasses for a commercial transport barge, built to Lloyd’s rules and tested in accordance with them. Each windlass is a chain gypsy type to suit 26 mm stud link anchor chain, with a hydraulic motor and gearbox driving the gypsy, a manual band brake with handwheel to hold the chain, and a warping head for handling mooring lines. The pair were built to the same drawing, painted in marine grey and delivered as a set with their hydraulic control valves. Engineered, manufactured and tested at our Yatala, Queensland workshop.
Key Project Highlights
Exceptional performance, precision and reliability
These 30 kN hydraulic stud link anchor windlasses were built to class rules for a commercial transport barge. Headline specifications:
30 kN
Rated Capacity
Capstan
Rope Storage
Marine
Industry
Commercial transport
Application
Design & Manufacturing Considerations
Built for durability and efficiency in demanding environments
Specified to Lloyd’s requirements for barge anchoring and assembled in-house at Yatala. Key design considerations:
Marine Grade
Coated Steel
Material Choice
Hydraulic
Powerpack
Power System
30 kN
Rated Line Pull
Drive System
Manual
Standard control
Control / Brake
Operational & Technical Breakdown
An in-depth look at the 30 kN studlink anchor windlass's performance and technical capabilities
Each windlass has a chain gypsy machined to the 26 mm stud link chain profile so every link seats correctly as the anchor is hauled, with a chain stripper to guide the chain into the locker. A hydraulic motor drives the gypsy through a heavy gearbox on a fabricated marine steel base, and a warping head on the outboard end handles mooring and towing lines. The band brake on the gypsy is applied by handwheel and holds the anchor chain when the drive is stopped.
Designing to Lloyd’s rules set the material grades, brake holding capacity, gypsy strength and test loads, and both windlasses were tested at Yatala in accordance with those rules before delivery, with the hydraulic control valves and documentation supplied for the barge builder. Marine coatings and stainless fittings were used throughout for life on an open deck.
Other Winch Applications
Versatile winching solutions across multiple industries.
Beyond marine transport, hydraulic anchor windlasses of this type suit dredges, work barges and pontoons that anchor with stud link chain and need class-approved equipment.
Anchor handling and chain windlasses for trawlers and fishing vessels – gypsy wheels matched to the chain size and built for constant saltwater service.
Mooring and anchor handling for barges, pontoons and offshore support vessels – hydraulic windlasses built and certified to class rules where required.
Project Conclusion
The 30 kN stud link anchor windlasses gave the barge a matched pair of class-rule anchoring machines with chain gypsies, band brakes and warping heads in one compact unit each. Designed, built and tested in Yatala by Australian Certified Winches.
Like every winch we build, it was designed to AS 1418, the Australian Standard for cranes, hoists and winches, and signed off by our RPEQ-registered engineers before load testing in Yatala.
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- 2/14 Freight Street, Yatala, QLD 4207
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Frequently Asked Questions
Common questions about anchor windlasses for barges and workboats.
What is a chain gypsy windlass?
A windlass that hauls anchor chain on a toothed wheel, the gypsy, machined to the chain’s link size so each link is gripped positively rather than relying on friction. These units were machined for 26 mm stud link chain.
What does building to Lloyd's rules involve?
The classification rules set the material grades, design loads, brake holding capacity and test procedures for anchoring equipment. ACW designed the windlasses to those rules and tested them at Yatala in accordance with them so the barge could be classed.
How is the anchor held once it is deployed?
A manual band brake on the gypsy, applied by handwheel, holds the chain independently of the hydraulic drive. The anchor load is carried by the brake and chain stopper, not by hydraulic pressure.
What is the warping head for?
The smooth drum on the outboard end of the windlass shaft handles mooring and towing lines. Crew take turns of rope around it and the windlass hauls the line, in the same way a capstan does.
Can ACW build windlasses for other chain sizes?
Yes. The gypsy is machined to the chain, so windlasses can be built for other stud link or short link chain sizes and for electric or hydraulic drive, with class-rule design and testing where the vessel requires it.
Fitting Out a Vessel?
Tell us the chain size, the anchor weight and the class requirements. Our RPEQ engineers will size a certified windlass for it.