ST31 Compact Track Loader
The ST31 matches the compact size of a medium frame with lift capacity of larger loaders. The vertical lift arm, 125 inch lift height and 74hp regeneration free engine, make the ST31 an accomplished material handler, perfect for use in a wide range of applications, from moving palletized material around a construction site to truck loading. The wide, double-steel reinforced tracks provide stability and reduced total cost of ownership.
| Ground Pressure(Standard track | 5.8 psi |
| Break Out Force Bucket | 5,611 lbf |
| Break Out Force Lift Arm | 5,546 lbf |
| Tractive Effort max. | 9,873.6 lbf |
| Bucket Roll Back | 1.6 s |
| Bucket Roll Out | 2.1 s |
| Lift Arm Raise | 3.6 s |
| Lift arm lower | 2 s |
| Travel speed stage 1 | 6.5 m/H |
| Travel speed stage 2 | 9.7 m/H |
| Length without Bucket | 106.9 " |
| Length with Bucket | 136.1 " |
| Overall width without bucket | 64 " |
| Overall Width (Large Track) | 67.1 " |
| Height to top of ROPS | 82.8 " |
| Bucket Hinge Pin Height | 128.5 " |
| Bucket roll back at ground | 30 ° |
| Bucket roll back at height max | 94 ° |
| Angle of departure | 33 ° |
| Bucket height at height max. | 163.4 " |
| Buck. dump angle at height max | 40 ° |
| Operating weight | 8,240.9 lb |
| Track width | 12.6 " |
| Track width (optional) | 15.7 " |
| Ground clearance | 9.1 " |
| Length of Track on Ground | 56.7 " |
| Dump reach at max. height | 38 " |
| Cylinder | 4 |
| Cylinder capacity | 151.5 Inch3 |
| Operating power | 73.8 hp |
| Operating Engine speed | 2,600 1/min |
| Engine type | Diesel engine |
| Engine Manufacturer | Kohler |
| Flow rate | 20.1 gal/mi |
| Flow rate max. | 29.9 gal/mi |
| Auxiliary relief pressure | 3,480 psi |
| Fuel Tank capacity | 35 gal US |
| Tip Load | 6,199.4 lb |
| Rated Operating Capacity at 50% Tip Load | 3,099.7 lb |
| Rated Operating Capacity at 35% Tip Load | 2,169.4 lb |
