Junttan Hydraulic Hammers
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Transcript of Junttan Hydraulic Hammers
Hydraulic Hammers
Advantages of Junttan hydraulic hammer
• Effective energy transfer
• Proven, simple and robust design
• Versatile options
• Easy to use and maintain
• Environmentally friendly compared to diesel hammers
Three piling hammer technologies
• Hydraulic hammers
• Diesel hammers
• Air/steam hammers
• HHK A - series: Stroke up to 1200 mm• HHK S – series: Stroke up to 1500 mm
• Ram weight from 3 to 25 tons• Energy output from 35 to 368 kNm
Junttan Hammer models
Hammer utilisation
Purpose built piling rig (hammers up to 12 ton)
Crane use with hanging leader (normally hammers
from 14 ton and up)
Hammer utilisation
Barge use with fixed leader (normally hammers from 16
ton and up)
Crane use with flying leader (normally hammers
from 14 ton and up)
Junttan Hammer Structure• Effective energy transfer
• Proven, simple and robust design
• Versatile options
• Easy to use and maintain
Junttan Hammer Attachments
• Lifting Kit for Crane Hanging application
• Includes– Cylinder Top protection– Lifting sling – Ropes
• Raked piles Kit– Long ropes
• Flying Leader Kit for Crane hanging application
• Needed for raked piles in higher inclination
• Feaster and easier work with raked piles
Junttan Hammer Attachments
Junttan Hammer Attachments
• Guide claws available for different leader profiles
• Fixed Leader application– Piling Barges– Large Piling Cranes
Junttan Hammer general arrangement
Easy and safe to useControl Box
Strokeheight scaleon hammer
frame
Energy measure
device (Optional)
Power Pack
Easy to set up and service
• Quick set up for operation
• Easy to handle
• Easy access to the service and repair points (seals, cylinder)
Diesel hammers (single acting)
• Self contained unit, does not require additional equipment
• Increase strokes in hard driving provide increasing energies, low strokes in easy driving protect concrete piles
• Relatively low ram weight compare to energy (high strokes)
• Stroke dependent on hammer-pile-soil system, the stroke can not be effectively adjusted by operator.
• Relatively low blow rates ( blows per minute) with high strokes
• Environmental problems (smoke, noise, vibration)
• Very complicated on off shore
The advantage of Hydraulic hammers• The impacting energy is adjustable with adjusting the drop height
• The time of impacting is adjustable thanks to driving is independent on the Hammer-pile-soil system
• Higher efficiency
• No smoke and oil pollution from hammer
• Lower noise level
• Lower impacting vibration
• Bigger inclination can be reached with less energy loss.
• Better penetration, more meters/hour
• Same hammer can be used to drive all of the material piles and all kind profiles
JUNTTAN hydraulic hammer offers
• Simplicity compare with other hydraulic hammer
• The stroke is designed to be suitable to both steel piles and concrete piles.
• Suitable to bigger Inclination with minimum energy loss
• Suitable to both on shore or off shore without any extra cage (free suspended driving)
• With driving cage the hammer can reach bigger inclination on concrete pile (does not bend the pile)
• The cage design could be very simple thanks to the less weight of the hammer, the bigger crane capacity is not needed.
• Perfect energy transfer from hammer ram to pile, more meters/hour
JUNTTAN Hydraulic Hammer Offers• Easy to operate
• Hydraulic and electronic control system
• Free fall hammer – The downward force is to overcome the loses in the system– To drive the concrete pile with easy drive
• The ram block weight can be easily modified into different weight. – The hammer can be performed as several hammers
• The hammer stroke could be controlled and adjusted by operator with figure tip movement, so that the hammer could be used in the most difficult soil conditions.
• Extra meters could be driven
• Longer lift time, easy service
The Hydraulic and Diesel Hammer
Hammer typeKinetic energy
(ft.lbs)
Energy on pile (ft.lbs)
Delmag D36-32
Junttan HHK 5A
83.880
44.334
37.746
42.117
Delmag D46-32
Junttan HHK 7A
107.177
62.067
48.229
59.120
Delmag D62-22
Junttan HHK 9A
165.000
79.801
74.250
76.106
Delmag D80-23
Junttan HHK 12A
225.000
106.402
101.250
101.229
Delmag D100-13
Junttan HHK 16A
300.000
141.869
135.000
134.480
We take 45% efficiency for diesel hammer, and 90% efficiency for Junttan hydraulic hammer
One Hydraulic Hammer Can Perform as Several Diesel Hammers
• The ram block weight can be formed with two to three pieces.
• The drop height can be adjusted according the soil condition and size of the pile
• With one Junttan hammer can perform the pile driving work as several diesel hammers.
Hydraulic Hammers in cranes
World Wide
Junttan Hammers around the World
Malaysia / PenangHHK 25S
• Off shore (Bridge)• Barge crane application• 1000 mm steel tubes • 45 + 45 m long
Junttan Hammers around the World
BrazilHHK 12S
• Off shore (Harbour)• Flying leader
application• 800 mm steel tubes
Junttan Hammers around the World
Australia / AdelaideHHK 18/20S
• On & Off shore (Ship yard)
• Crane application
• 1000 mm steel tubes
• 25 m
Junttan Hammers around the World
Australia / GladstoneHHK 14S
• Off shore (Harbour)• Crane application• 1000/1200 mm steel
tubes
Junttan Hammers around the World
PeruHHK 14S
• On & Off shore (Oil harbour)
• Flying leader application
• 1200 mm steel tubes
Junttan Hammers around the World
Finland / HelsinkiHHK 12S
• Off shore (Harbour)• Barge crane
application• 1200 mm steel tubes
Junttan Hammers around the World
China / ShanghaiHHK 18/20S
• Off shore (Bridge)• Barge crane application• 1200 mm steel tubes
Junttan Hammers around the World
China / Hong Kong HHK 20S
• On shore (Foundation)
• Leader crane application
• Several sizes of H-beams
Junttan Hammers around the World
China / ShantouHHK 12A
• Off shore (Harbour)• Crane application• 900 mm steel tubes• 50 - 60 meters• Raked piles 1:3 to 1:12
HHK A hammer in Hong Kong