Standard Pontoon Undercarriage (Amphibious Undercarriage, Floating Undercarriage, Steel Pontoons)

Standard Pontoon Undercarriage (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	PU80	PU100	PU120	PU140	PU160	PU180	PU200	PU210	PU220	PU240	PU260
Excavator Class Fitted to	7-8tons	8-10tons	10-12tons	12-14tons	14-16tons	16-18tons	18-20tons	18-20tons	20-22Tons	20-24tons	20-24tons
A Pontoon Length, мм	6200	6500	6500	7 100	7 700	8 100	8 500	8 500	9 400	10 200	10 200
B Undercarriage Width, мм	3100	3640	4500 ≥4060	4500 ≥4140	5200 ≥4260	5100 5100	5200 ≥4260	6000 ≥4740	6000 ≥4740	6000 ≥4740	6000 ≥4740
C Pontoon Height, мм	1350	1600	1700	1 700	1 700	1 700	1 700	1700	1 700	1 700	1 800
D Pontoon Width, мм	1100	1250	1460	1 500	1 560	1 500	1 560	1800	1800	1800	1800
E Clearance, мм	800	1000	1000	1000	1000	1000	1000	1100	1100	1100	1100
F Gauge, мм	2000	2540	2660	2740	2760	3700	2760	3040	3040	3040	3040
Strands of Track Chain	2	2	2	2	2	2	2	3	3	3	3
Hydraulic Travel Motor	2хDoosan TM18VC	2хDoosan TM18VC	2хDoosan TM18VC	2хDoosan TM18VC	2хDoosan TM40VC	2хDoosan TM40VC	2хDoosan TM40VC	2хDoosan TM60VC	2хDoosan TM60VC	2хDoosan TM60VC	4хDoosan TM40VC
Total Buoyancy, Metric Tons	8.5	13	17	20	23	24	26	30	34	38	41
Max. Payloads, Metric Tons	4	4	5	7	9.5	10	11.5	11	14	17.5	19.5
Total Weigh, Metric Tons	8	9.5	11.7	12.5	13.2	13.6	13.95	18.9	19.6	20.2	20.5

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.