Class Excavators

USED

Amphibious Undercarriage for 12-14 Tonne Class Excavators

DETAILS:
• An amphibious excavator, also known as a marsh buggy
is an excavator specifically designed to maneuver in marshes
swampy areas and soft terrain, as well as to float on water

• The physics behind the amphibious excavator lies in the
hermetically sealed pontoons, designed based on Archimedes’ principle
Coupled with its large foot print, this creates an extremely low ground pressure

• The machine is capable of tracking in both dry
soft and swampy areas with little or no risk of being stuck in the mud

• The amphibious excavators has proven itself
and performed exceedingly well in the followings applications :
 Dredging
 Landscaping
 Erosion control and prevention
 Deepening of waterways and river deltas
 Maintenance and cleaning of rivers, lakes, shorelines, ponds

Technical Details

Principal Dimensions and Characteristics
Amphibious Undercarriage
Max. Track Length: 9.40 m 31 feet
Track Length On Ground: 5.25 m 17 feet
Rear Upper Structure Length: 2.18 m 7 feet
Overall Length: 12.32 m 40 feet
Height of Boom: 2.90 m 10 feet
Counterweight Clearance: 1.75 m 6 feet
Overall Width, min/max: 4.22/ 5.32 m 14/17 feet
(outwardly extendable)
Undercarriage Width, min/max: 3.95 / 5.05 m 13/17 feet
Track Gauge, min/max: 2.50 / 3.60 m 8/12 feet
Track Cleat Width: 1.45 m 5 feet
Min. Ground Clearance: 1.07 m 4 feet
Track Height: 1.61 m 5 feet
Overall Cab Height: 3.45 m 11 feet
Upper Structure Overall Width: 2.50 m 8 feet
Max. Cutting Height: 12.50 m 41 feet
Max. Loading Height: 8.50 m 28 feet
Recommended Outreach: 12.00 m 39 feet
Max. Digging Depth from Front: 7.50 m 25 feet
Max. Digging Depth from Side: 5.90 m 19 feet
Bucket Capacity: 0.40 cubic meters 0.52 cubic yards
Multi-Synchronous Drive System
Proprietary multi-synchronous drive motor design.
Motors are mounted on front and rear of each pontoon.
It offers superior tracking power as compared to a single motor design
A similar concept that is applied to a
full time 4x4 gear system of a land vehicle.
Swampy areas are not necessary flat, and one will realize
the full potential when tracking on uneven and high
viscosity muddy terrains

Hydraulic Extendable & Retractable Pontoons
Extension and retraction of pontoons “on the fly”.
When fully extended, it offers the extra stability needed when situation calls for.
Provide the flexibility of narrow track width when
fully retracted when needs arises.
Designed for ease of land transportation of complete
machine by trailer when pontoons are fully retracted
Higher ROI through long term saving of manpower
crane hiring and other logistical cost.
Hydraulic extendable pontoons is a standard feature
for 12 ton class and below amphibious machine

Non Hydraulic Extendable
For non hydraulic extendable design, there are 2 separate
locking pin positions for each pontoon on the horizontal mounting beams
Users can choose their desired overall track width
during the installation process

Pontoon Design & Construction
Each pontoon has 2 bulk heads with 3 water tight compartments
which are hermetically sealed.
The pontoon is designed with sufficient displacement applying
Archimedes’ Principle to ensure the entire
amphibious excavator is able to float on water as a safety feature
Each pontoon comes with manholes for easy access
to its interior for servicing and maintenance

Supplementary Pontoons and Spuds
Supplementary pontoons can be added on each side to boost
stability in deeper water operation
Spud piles attach to supplementary pontoons help to overcome
buoyancy effect, it offers added stability and enhanced operability
Pontoons are designed and built with provision for future addition
of supplementary pontoon and spud system
Future proof in design

Track Chain
The track chain is constructed with premium grade steel imported from Europe.
The track chain, being one of the most critical component require
high level of precision and consistency in the manufacturing process.
Each track link plate is CNC laser cut to utmost precision of the highest standard
The track shoe is supported by 2 or 3 strands of track chain
offers the advantage of uniform pulling force and
superior weight distribution across each track shoe
The hard working sprockets, rollers and pins are made from
hardened steel, reducing the frequency of replacement and costly down time
Rollers are traveling on a strip of wear resistant steel plate
(Hardox), prevent premature wearing to the pontoons
Every roller has an embedded bushing (in red)
The bushing protects and extends the useful working life of the track chain

Replaceable Sprockets
Sprockets are machined to high precision.
Induction hardened for durability.
Each sprocket is bolted onto the axle which can be easily replaced individually.
Replacement process is simple and perfect alignment is guaranteed.
For competitors’ weld-on sprocket design, replacement
is much more tedious, complicated and costly

Track Shoe
Track shoes are steel fabricated.
Steel is much more malleable than aluminum, and it has a wider
spread between yield strength and ultimate tensile strength
The key distinct advantage of steel over aluminum is
it is less prone to cracking.
The steel track shoes used have a typical tensile strength of 69,600 psi
(480 MPa) and yield strength of 40,600 psi (280 MPa)
Competitors who used 6061-T6 aluminum track shoe have
a typical tensile strength of about 42,000 psi (290
MPa) and yield strength of about 35,000 psi (241 MPa)
The track shoe is reinforced box design, enhancing the floating capability
A large adjacent surface area translates to enhance traction on soft terrain
and higher efficiency when “paddling” in water

Modular Design
Both the assembly and disassembly processes can
be achieved in under 3 hours if equipped with proper tools and crane
No special tooling is required for the assembly and disassembly process
Designed to be easily transported by low bed trailer
Undercarriage modules and attachments are designed to be able to fit into 40 ft container