HEFEI SUNTON MACHINERY MANUFACTURING CO., LTD.

SUNTON EPU series extendable amphibious pontoon undercarriages are an optional design of the normal standard PU series amphibious undercarriages. The extendable pontoons could retract and extend outward hydraulically. The width of the small size undercarriage could be adjusted to 3m as a minimum. The hydraulic control is totally independent from the existing hydraulic circuit, which could be fully controlled by the operator in the cabin. The design of the extendable pontoons provides the most convenience of transporting the complete machine on trailer without dismantling it into modules. This brings a tremendous saving on logistics. As per custom’s request, we could provide the manually extendable pontoons, which is also a practical optional choice to meet customer’s budget. It can realize retraction and extension only through a pulling-block pulled by a machine as an excavator. Detail specification will be provided under request. 1.Extendable Amphibious Undercarriage,  Heavy Duty Size Model EPU300 EPU330 EPU360 EPU380 Excavator Class Fitted to 24-47tons Undercarriage Mini./Max. Width,M 5-7.5 A  Pontoon Length,mm 11 000 11 000 11 000 11 000 B  Undercarriage Width,mm 6800 6800 6800 6800 C  Pontoon Height,mm 1 800 2000 1 800 2 000 D  Pontoon Width,mm 2 200 2 200 2 200 2 200 E  Clearance,mm 1100 1100 1100 1100 F  Gauge,mm 3340 3340 3340 3340 Track Pad Length, mm 1500-1700 1500-1700 1500-1700 1500-1700 Strands of Track Chain 3 3 3 3 Hydraulic Travel Motor 2*Doosan TM60VC 4*Doosan TM40VC 4*Doosan TM60VC 2*Doosan TM70VC Total Buoyancy, Metric Tons 54 54 54 62 Max. Payloads for floating purpose w/o side pontoons,Metric Tons 29 28 28 36 Total Weight of Undercarriage, Metric Tons 24 25 25 25 EPU380-1 EPU390 EPU400 EPU420 EPU450 24-47tons 5-7.5 11 000 11 000 11 000 11 000 11 000 6800 6800 6800 6800 6800 2000 2 000 2200 2200 2200 2 200 2200 2200 2200 2200 1100 1100 1100 1100 1100 3340 3340 3340 3340 3340 1500-1700 1500-1700 1500-1700 1500-1700 1500-1700 3 3 3 3 4 4*Doosan TM40VC 4*Doosan TM60VC 4*Doosan TM40VC 4*Doosan TM60VC 4*Doosan TM60VC 62 62 70 70 70 35 35 41 41 33 26 26 27 27 345