The 3rd Drum Series / Hoist Spec Marine Crane

The 3rd Drum Series / Hoist Spec Marine Crane

Marine Crane

Long-Seller of the Hoist Spec Marine Crane (commonly known as Gat Crane) that has Accumulated Achievements and Improvements Since the Establishment of SKK

The GDA series is a marine crane that mainly handles sand and gravel (aggregates).

In 1956, Shikoku Kenki Corporation (now SKK) manufactured the first marine crane to become the prototype of GDA.

Through the efforts in research, development and improvement, it became the current GDA.

The crane of the GDA series is additionally equipped with a drum only for hook-service (the third drum), it is possible for load lifting work while fitted with a grab bucket.

Product Name Hoist Spec Marine Crane GDA-H Series  (Grab / Diesel Engine / Air / Hoist / Series)
Main Uses Loading & unloading of sand, gravel and stones (cargo handling) service, Grab dredging service in lake, river and dam, load lifting service

Features

Efficient and Fast Cargo Handling Service

Marine cranes that enable safe and powerful work. Working efficiently and fast is carried out even at the harsh seas. By accumulating technical know-how from the time of development, we have achieved high operability of the cranes.

High-Precision Operation with 4 + 1 Levers Condensed Know-how

High-Precision Operation with 4 + 1 Levers Condensed Know-how

When doing load lifting work, by turning the work select switch to "hook" position, the grab open-closing clutch operation lever is turned as a clutch operation lever for main hoist, and together with the brake operation lever for main hoist drum, the load lifting operation is performed by the two levers.
The main hoist drum has the function of reversing, which ensures to lower the lifting load safely.

 Simple Arrangement for Necessary Function, Easy for Maintenance

Simple Arrangement for Necessary Function, Easy for Maintenance

The GDA mechanism is designed as simple as possible, assuming maintenance at the work site. Some customers who have been using the crane for a long time can maintain it at their company. This benefits them to the reduce the running cost of the machine.

Multi-Purpose Crane as well as to Perform Load Lifting Service

Multi-Purpose Crane as well as to Perform Load Lifting Service

For playing an active part in a wide field of working sites, as the mobile crane inspected by the Labor Bureau.
Both the grab dredging service and load lifting service it performs without wire replacing.

Main Apparatuses

 Alarm and Automatic Stop Device to Protect the Working Safety

Alarm and Automatic Stop Device to Protect the Working Safety

The SKK marine crane has the ability to electrically detect slip descent of the jib and brake automatically. In addition, the alarm system of the upper and lower limits for jib luffing, for preventing grab over-hoisted, and the automatic stop system against jib over-hoisted etc. are provided to ensure the safety work.

The Third Drum for Load Lifting Work

The Third Drum for Load Lifting Work

By adding one drum for load lifting work, both lifting work and grab dredging work are possible without replacing wire rope.

Hook Pocket

Hook Pocket

Fix the unused hook by storing it in the hook pocket. This makes it possible to do grab dredging work without removing the hook, which leads to shorten the working time.

Moment Limiter

Moment Limiter

It displays the load and working radius during the lifting work. Alarm system is also provided to prevent overload.