DT-K Series / Multi-Purpose Crane

Floating

Wide Range of Line-up of Lifting Capacity from 200t to 700t.
Mainly Used for Lifting Work, As Well as Customized to Multi-Purpose Crane Function with Grab Dredging, Rock- Breaking and Pile Driving

The DT-K series is active in all kinds of port civil engineering projects, such as installation work of wave blocks, fishing reef block sinking work, and pile driving work.

Based on the DT-K series, we deliver a number sets of real professional pile-driving cranes with special designs of drum configurations and pile leader equipment.

The attachments necessary for the pile-driving work such as the leader and the catch fork are installed which are assembled and disassembled only by the crane its-self.

We are proud of the strength and safety of the cranes that can withstand the sever sea environment and they are active not only in Japan but also overseas.

All designs and manufactures are made to order, and we design one by one according to the customer’s request and the content of the construction work.

Product Name	DT-K Series (Diesel engine / Torque converter / K series)
Main Uses	Floating crane service, fishing reef block sinking service, pile-driving service, grab dredging service and rock-breaking service.
Example of Customization	･ According to the practical jib length, select the hook block of the most work efficiency rope falls ･ Equip with the hook pocket to store the hook in the jib so as to quickly start the grab dredging work ･ The foot pedal for crane slewing operation is changeable into hand lever also

Specifications Performance Table

Features

Applied to a Wide Range of Work, It Is Active in All Marine Construction.

We design and select attachments according to user’s request, such as floating crane service, pile-driving service, grab dredging and rock-breaking service etc.

Vibration and Noise Countermeasures to Reduce Operator Fatigue and Burden

An independent anti-vibration system for operator’s cab is adopted by putting anti-vibration rubber between the machine body and the operator’s seat, in this way to minimize the vibration of the machine body transmitting to the operator’s seat. Compared to conventional cranes, operator’s fatigue and burden is much more lightened. Additionally, by providing enough soundproofing, operator can have a conversation without stress even while working in the crane.

Surveillance Cameras, Sensors and Alarm Devices to Ensure Safety

Surveillance cameras are equipped over the drums so as to help operator watch the winding status of the wire rope. In addition, various devices are installed to ensure safety, such as the alarm that reacts to each over-hoisted and overload, and the stop slewing function by the sensor installed on the foldable stairs for boarding crane.

Simple Operation to Open and Close the Grab Bucket Smoothly

By putting the hoisting and open-closing operation levers in the clutch position, only with one control lever it is carried out to wind up and lower down the grab bucket easily. Moreover, the grab bucket opening degrees meter helps operator understand grab bucket opening degrees within from 0% to 100% in real time.

Set to an Easy-to-Use Operating Environment for Operators

Various control such as torque converter in speed control mode or torque control mode, and various operation of crane movement can be adjusted to the operator’s easy-to-use settings.

Torque converter with brakes

The function of the TC reverse brake of the original development enables winding down by power under a light load.
Combined with electronic control, it achieves powerful, smooth operation and delicate speed control. The winding speed changes automatically to fit with the lifting load, in this way the shock during operation is relieved.

Main Options

GPS Grab Dredging Engineering Management System

On the monitor of this system the dredging spot and depth can be checked in real time. By setting working spot in advance, the progress of dredging work is confirmed through the monitor which enables operations accurate without waste. Moreover, the work done is recorded, which is useful for making retrospections and reports

Flat-Dredging Control System, Depth Meter/Grab Bucket Open-Closing Degree Meter

The flat-dredging control system, developed by SKK in 1989, is a control system that by control the sinking degree of grab bucket so as to make the dredged trace on sea bottom near flat surface less of roughness. The sinking degree is automatically detected and controlled by the system and succeeded in significantly reducing dredging sediment residue. Quick and high-precision dredging work is now possible. The depth meter is an instrument that enables automatic deceleration and stop of grab bucket at a specified depth. There is not any more wire rope is reeled out after grab getting to the bottom so that the working time is shortened. In addition, the grab bucket opening degrees meter helps operator understand grab bucket opening degrees within from 0% to 100%.

Hook Pocket

Hook pocket is used to store and fasten an unused hook. This makes it possible to do grab dredging work without removing the hook. It leads to shorten the working time.

Pile Driving Function

It much excels in economical that the installation and the removal of the pile leader are carried out by the crane its-self but unnecessary of assistant machine.
Furthermore, it is possible to drive a pile diagonally leaning forward or backward. There is less of shifting with ship, and complex arrangement of driving piles can be efficiently fulfilled, its construction capacity is much improved.
The leader's slide mechanism is used to adjust the leader height freely, effective for work with variety of pile lengths and able to dive pile over an obstacle in the front.
By equipping the Pile Driving Engineering Management System, it is possible to check the position of the vessel, the driving spot of the pile, its inclination angle, and the height, etc. in real time, and to increase work efficiency. It is equipped with an electric gondola that will make pile driving work going more safely and fast.

DT-K Series / Multi-Purpose Crane (Pile-Driver)

Product

GT Series / Grab Dredging Crane