Heavy Duty Pontoon Undercarriages (Amphibious Undercarriage, Floating Undercarriage, Steel Pontoons)

Heavy Duty Pontoon Undercarriages (Amphibious Undercarriage, Floating Undercarriage, Steel Pontoons)

General Information:

Different from the conventional undercarriage of the construction machinery, the undercarriage of a Marsh Excavator or Swamp Excavator or Amphibious Excavator is built on two large steel pontoons with the tracks mounted around them. The pontoons create buoyancy, giving the machine capabilities between those of a barge and a regular excavator. The pontoons are custom fabricated for a particular machine to provide the correct displacement and balance to allow the machine to safely float and move on water or soft terrains.

SUNTON supplies full range of PU series self-propelled marsh excavator undercarriages, or called as amphibious undercarriages, that are suitable for excavators from 8tons to 47tons. The undercarriages could be designed to match to any excavator brand including Bobcat, Case, JCB, Linkbelt, Takeuchi, Hitachi, Volvo, Caterpillar, Komatsu, Hyundai, Kobelco, Samsung. Johndeer, Doosan or Daewoo etc. Payload of the undercarriage ranges from 3 metric tons to 42 metric tons, 1360 pounds to 19050 pounds. In most instances, the hydraulic system of the excavator is used to propel the amphibious undercarriage. In these instances, SUNTON supplies a mounting ring compatible with the excavator upper along with a hydraulic swivel, travel motors and brakes and final drive gear boxes.

SUNTON PU series marsh undercarriage or amphibious pontoon undercarriage could also be custom built to be as the swamp undercarriage matching to many other machines’ upper structures including dredging cutter pumps, dump bodies or dumpers, draglines, cranes, draglines, drill rigs, soil-boring rigs, man-lifts, fuel tanks, water tanks or pipe laying cranes, etc.

Technical Parameters

Model	PU300	PU330	PU360	PU380	PU380-1	PU390	PU400	PU420	PU450
Excavator Class Fitted to	24-47tons
A Pontoon Length, мм	11 000	11 000	11 000	11 000	11 000	11 000	11 000	11 000	11 000
B Undercarriage Width, мм	6800 ≥5540	6800 ≥5540	6800 ≥5540	6800 ≥5540	6800 ≥5540	6800 ≥5540	6800 ≥5540	6800 ≥5540	6800 ≥5540
C Pontoon Height, мм	1 800	2000	1 800	2 000	2000	2 000	2200	2200	2200
D Pontoon Width, мм	2 200	2 200	2 200	2 200	2 200	2200	2200	2200	2200
E Clearance, мм	1100	1100	1100	1100	1100	1100	1100	1100	1100
F Gauge, мм	3340	3340	3340	3340	3340	3340	3340	3340	3340
Strands of Track Chain	3	3	3	3	3	3	3	3	4
Hydraulic Travel Motor	2хDoosan TM60VC	4хDoosan TM40VC	4хDoosan TM60VC	2хDoosan TM70VC	4хDoosan TM40VC	4хDoosan TM60VC	4хDoosan TM40VC	4хDoosan TM60VC	4хDoosan TM60VC
Total Buoyancy, Metric Tons	55	55	55	63	63	63	71	71	71
Max. Payloads Metric Tons	30	29	29	37	36	36	42	42	34
Total Weight, Metric Tons	24.5	25.5	25.5	25.5	26.5	26.5	27.5	27.5	35

Remark: Model selection of pontoons is determined by several factors including:

√ Pontoon size is determined by the max. water depth or the balance between the max. payload of the undercarriage and the weight of the excavator upper.

√ Numbers of chain strands of track are determined by the surface of the swamp lands, soft or hard surface. 2 strand chains track is mainly applicable to machine often moving on soft terrain, while 3 or 4 strands chains mainly for hard or stiff surface.

√ Models and numbers of travel motors are determined by the condition of application. Big model motors and 4 motors are mainly applicable for dredging or moving in very thick muddy areas which have much resistance.