Construction Machinery: Mini Digger Hitachi

Model	Shoe dimensions	Track width	Specific ground pressure	Maximum travel speed	Support rollers number on either side	Rolling bearings number on either side
ZX8-2	180 mm - 7.1 inch	730 mm - 2.4 ft.	26 kPa - 3.8 lb / sq. inch	4 km/h - 2.5 mile / h		2
ZX40U-2	400 mm - 15.7 inch	1560 mm - 5.1 ft.	28 kPa - 4.1 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
ZX35U-3	300 mm - 11.8 inch		33.1 kPa - 4.8 lb / sq. inch	4.5 km/h - 2.8 mile / h
ZX35U-2	300 mm - 11.8 inch	1440 mm - 4.7 ft.	31 kPa - 4.5 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
ZX30U-2	300 mm - 11.8 inch	1250 mm - 4.1 ft.	28 kPa - 4.1 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
ZX27U-3	300 mm - 11.8 inch		30 kPa - 4.4 lb / sq. inch	4.5 km/h - 2.8 mile / h
ZX27U-2	300 mm - 11.8 inch	1250 mm - 4.1 ft.	28 kPa - 4.1 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
ZX22U-2	250 mm - 9.8 inch	1200 mm - 3.9 ft.	26 kPa - 3.8 lb / sq. inch	4.4 km/h - 2.7 mile / h		3
ZX17U-2	230 mm - 9.1 inch	1050 mm - 3.4 ft.	28 kPa - 4.1 lb / sq. inch	4.3 km/h - 2.7 mile / h		3
ZX10U-2	180 mm - 7.1 inch	820 mm - 2.7 ft.	24 kPa - 3.5 lb / sq. inch	4 km/h - 2.5 mile / h		3
EX45-2	400 mm - 15.7 inch	1450 mm - 4.8 ft.	26.5 kPa - 3.8 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
EX40-2	400 mm - 15.7 inch	1450 mm - 4.8 ft.	24.5 kPa - 3.6 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
EX35-2	300 mm - 11.8 inch	1220 mm - 4 ft.	30.4 kPa - 4.4 lb / sq. inch	4.6 km/h - 2.9 mile / h	1	4
EX30-2	300 mm - 11.8 inch	1220 mm - 4 ft.	26.5 kPa - 3.8 lb / sq. inch	4.5 km/h - 2.8 mile / h	1	4
EX15-2	230 mm - 9.1 inch	770 mm - 2.5 ft.	27.8 kPa - 4 lb / sq. inch	2.3 km/h - 1.4 mile / h		3
EX12-2	230 mm - 9.1 inch	1025 mm - 3.4 ft.	26 kPa - 3.8 lb / sq. inch	2.2 km/h - 1.4 mile / h		3