Characteristics |
| Model | R40 | R50 |
| System of Measurement | U.S. | Metric | U.S. | Metric |
| Capacity | rated load | lb-kg | 4000 | 2000 | 5000 | 2500 |
| At Load Center | distance | in-mm | 24 | 500 | 24 | 500 |
| Power | diesel | diesel | diesel |
| Tires | pneumatic | pneumatic | pneumatic |
| Drive | no. wheels driven | 2WD | 2WD |
Dimensions |
| Lift （with standard） | maximum fork height with rated load | in-mm | 168 | 4270 | 168 | 4270 |
| maximum fork height （10） | in-mm | 168 | 4270 | 168 | 4270 |
| free fork height | in-mm | 5.7 | 145 | 5.7 | 145 |
| Forks | length x width x thickness （13） | in-mm | 48x4x1.75 | 1200x100x45 | 48x4x1.75 | 1200x100x45 |
| Fork Spacing out-to-out | minimum/maximum （13a） | in-mm | 10.4/65.3 | 264/1660 | 10.4/65.3 | 264/1660 |
| Tilt of Mast | forward/back （14） | degrees | 45/12 | 45/12 |
| Overall Dimensions | length to fork face （15） | in-mm | 132.5 | 3370 | 132.5 | 3370 |
| width | with standard tires （16） | in-mm | 78.3 | 1990 | 78.3 | 1990 |
| w/front & high flotation tires （16a） | in-mm | 81/5 | 2070 | 81/.5 | 2070 |
| height | with lowered mast （17） | in-mm | 119 | 3023 | 119 | 3023 |
| seat height （17a） | in-mm | 49.7 | 1260 | 49.7 | 1260 |
| to top of overhead guard （17b） | in-mm | 93.5 | 2370 | 93.5 | 2370 |
| with extended mast （top of carriage） （18） | in-mm | 216 | 5487 | 216 | 5487 |
| Min. Outside Turning Radius （19） | in-mm | 152 | 3861 | 152 | 3861 |
| Load Moment Constant （20） | from center of front axle to fork face | in-mm | 26.4 | 671 | 26.4 | 671 |
| Minimum Aisle - 90° stack （22） | （add load length and clearance） | in-mm | 181.5 | 4610 | 181.5 | 4610 |
| |
| |
Performance |
| Top Travel Speed | standard | mph kmh | 19.4 | 31.2 | 19.4 | 31.2 |
| towable | mph kmh | 30.5 | 49.1 | 30.5 | 49.1 |
| Lift Speed | loaded/unloaded （diesel） | fpm-m/s | 64/71 | .33/.36 | 69/71 | .35/.36 |
| Lowering Speed | loaded/unloaded | fpm-m/s | 72/56 | .45/.28 | 88/56 | .45/.28 |
Drawbar Pull
@ 1.0 mph | loaded | standard （diesel） | lb/N | 10700 | 49300 | 12000 | 55550 |
| towable （diesel） | lb/N | 9740 | 43300 | 9720 | 43200 |
| Drawbar Pull | unloaded | all trucks | lb/n | 4730 | 21050 | 4590 | 20400 |
| Gradeability （@1.0 mph） | loaded | % | 51.7 | 53.2 |
| unloaded | % | 31.3 | 29.1 |
| |
| |
Weight |
| Empty | lb-kg | 10700 | 4850 | 11150 | 5055 |
| Axle Load | w/rated load | front | lb-kg | 12100 | 5875 | 13550 | 6400 |
| rear | lb-kg | 2600 | 1175 | 2650 | 1155 |
| without load | front | lb-kg | 5400 | 2450 | 5000 | 2265 |
| rear | lb-kg | 5300 | 2400 | 6150 | 2790 |
| |
| |
Chassis |
| Tires | dimensions | front standard tires | in | 15x19.5, 12 ply | 15x19.5, 12 ply |
| front w/high-flotation tires | in | 18x19.5, 16 ply | 18x19.5, 16 ply |
| rear | in | 12.16.5, 10 ply | 12.16.5, 10 ply |
| Wheelbase （35） | in-mm | 75 | 1900 | 74.8 | 1900 |
| Tread Width | front w/standard tires | in-mm | 64 | 1625 | 64 | 1625 |
| front w/high flotation tires | in-mm | 65.8 | 1675 | 65.8 | 1675 |
| rear | in-mm | 64.7 | 1645 | 64.7 | 1645 |
| Ground Clearance | with load | at lowest point | in-mm | 8.3 | 210 | 8.3 | 210 |
| at center of wheel base | in-mm | 9.8 | 248 | 9.8 | 248 |
| Brakes | service （standard） | oil disc, mechanical | oil disc, mechanical |
| service towable | shoe type, hydraulic | shoe type, hydraulic |
| parking | hand-operated, mechanical | hand-operated, mechanical |
| |
| |
Power Train |
| Engine | manufacturer/model（diesel）as of 1/05 | Caterpillar 3054C Tier II | Caterpillar 3054C Tier II |
| gross power per SAE J1349 | hp-KW | 83 | 61.92 | 83 | 61.92 |
| at RPM （diesel） | 2400 | 2400 |
| cylinders/displacement （diesel） | cu.in-l | 4/258.3 | 4/4.233 | 4/258.3 | 4.4.233 |
| Transmission | type | power shuttle | power shuttle |
| no. speeds forward/reverse | 4/4 | 4/4 |
| Relief Pressure | | psi-kPa | 2500 | 17240 | 2500 | 17240 |
