CAT CAT®257D Compact crawler loader
Operating mass of complete machine (kg):
3651.0
Rated load (kg):
1270.0
Engine model:
Cat C3.3B（涡轮）
Product Feature
Product Parameter
Operating specifications |
|
| Rated operating capacity：50% Tipping load | 1270.0 kg |
Working specifications* |
|
| Rated working capacity with optional counterweight | 1361.0 kg |
| Tilt cylinder digging force | 2284.0 kg |
| Tipping load | 2540.0 kg |
| Ground contact area | 1.14 m² |
| Ground pressure | 31.3 kPa |
| Rated operating capacity（35% Tipping load） | 889.0 kg |
| Rated operating capacity（50% Tipping load） | 1270.0 kg |
Size（Approximation）* |
|
| Reach at maximum lift and dump position | 637.0 mm |
| Clearance at maximum lift and dump position | 2300.0 mm |
| Caster angle at maximum height | 87° |
| Bucket pin height in carry position | 215.0 mm |
| Total length of track | 1898.0 mm |
| Ground contact length of track | 1499.0 mm |
| Maximum unloading angle | 52° |
| Maximum overall height | 3932.0 mm |
| Bucket pin height at maximum lift height | 3091.0 mm |
| Bucket pin extension at maximum lift height | 367.0 mm |
| Departure angle | 35° |
| Ground clearance | 242.0 mm |
| Maximum reach with the arm parallel to the floor | 1334.0 mm |
| Steering radius from center to rear of machine | 1555.0 mm |
| Turning radius from center to connector | 1399.0 mm |
| Steering radius from center to bucket | 2191.0 mm |
| Height to top of cab | 2129.0 mm |
| Vehicle width | 1676.0 mm |
| Length with bucket on the ground | 3486.0 mm |
| Length（Bucket is not included） | 2767.0 mm |
Hydraulic system |
|
| Hydraulic flow – Standard：Hydraulic power（Calculated value） | 29.0 kW |
| Hydraulic flow – Standard：Loader hydraulic pressure | 23000.0 kPa |
| Hydraulic flow – Standard：Loader hydraulic flow | 76.0 l/min |
| Hydraulic flow – High flow：Maximum loader hydraulic pressure | 23000.0 kPa |
| Hydraulic flow – High flow：Maximum loader hydraulic flow | 112.0 l/min |
| Hydraulic flow – High flow：Hydraulic power（Calculated value） | 43.0 kW |
Cab |
|
| ROPS | ISO 3471:2008 |
| FOPS | ISO 3449:2005 I Level |
| FOPS II Level | ISO 3449:2005 II Level |
Power train |
|
| Travel speed（Forward or backward）：Single speed | 10.1 km/h |
| Travel speed（Forward or backward）：Two speed（Optional） | 16.0 km/h |
Maintenance refill capacity |
|
| Cooling system | 14.0 l |
| Engine crankcase | 11.0 l |
| Fuel tank | 105.0 l |
| Hydraulic system | 50.0 l |
| Hydraulic oil tank | 39.0 l |
Engine |
|
| Engine model | Cat C3.3B（Turbine） |
| Net power | 53.8 kW |
| Total power（SAE J1995） | 55.4 kW |
| Net power（ISO 9249）† | 53.8 kW |
| Displacement | 3.3 l |
| Cylinder bore | 94.0 mm |
| Stroke | 120.0 mm |
| Notice (1) | †In line with the United States EPA Tier 2/European Union Stage II Equivalent emission standards（Not available in all regions）。 |
| Net power（SAE 1349）† | 54.3 kW |
| Net power（SAE 1349）†† | 54.2 kW |
| Net power（ISO 9249）†† | 54.8 kW |
| Notice (2) | ††In line with the United States EPA Tier 4 Interim/European Union Stage IIIA Equivalent emission standards（Not available in all regions）。 |
Weight* |
|
| Notice | *257D And 287D Operating weight of、Working specifications and dimensions are based on a weight of 75 kg（165 lb）The operator of、All fluids、Single speed（257D）/Two speed（287D）、OROPS、1676 mm（66"）Dust-type bucket、Standard flow hydraulic unit、Mechanical suspension seat、Without optional counterweight and manual quick coupler（Unless otherwise noted）。 |
| Operating weight | 3651.0 kg |
