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| Hydraulic dynamometer model | YP60 | YP120 | YP250 | YP380 | YP520 | YP660 | YP880 | YP1200 | YP1900 | YP2500 | YP3300 |
| Maximum absorption rate (KW) | 60 | 120 | 250 | 380 | 520 | 660 | 880 | 1200 | 1900 | 2500 | 3300 |
| Torque measurement accuracy (FS) | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% | ±0.2% |
| Speed measurement accuracy (FS) | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ | ±0.5‰ |
| Spindle rotation direction | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional | unidirectional |
| Brake force measurement range (N) | 0~180 | 0~550 | 0~1000 | 0~1300 | 0~2500 | 0~3300 | 0~6000 | 0~12000 | 0~18000 | 0~27000 | 0~35000 |
| Maximum braking torque (Nm) | 172 | 525 | 980 | 1240 | 2450 | 3150 | 5700 | 11760 | 17200 | 26460 | 33400 |
| Maximum water consumption (Kg/h) | 1200 | 2400 | 5000 | 8000 | 10400 | 13900 | 18500 | 24000 | 36300 | 50000 | 66000 |
| Drainage maximum temperature (°C) | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| Total length of the spindle | 448 | 510 | 500 | 500 | 600 | 600 | 802 | 1296 | 1296 | 1440 | 1440 |
| Spindle cone length and taper | 63, 1:30 | 70, 1:30 | 70, 1:30 | 70, 1:30 | 70, 1:30 | 80, 1:30 | 100, 1:30 | 192, 1:30 | 192, 1:30 | 170, 1:30 | 170, 1:30 |
| The center of the spindle is high to the bottom of the base | 255 | 300 | 300 | 300 | 350 | 350 | 650 | 760 | 760 | 840 | 840 |
| Dynamometer dimensions (length × width × height) | 450×400×370 | 655×530×430 | 640×536×460 | 640×536×460 | 760×620×543 | 760×620×543 | 1078×845×905 | 1598×.51310×1135 | 1598×.51310×1135 | 1452×1558×1310 | 145×21558×1330 |
| Base size (length × width × height) | 640×400×90 | 640×394×110 | 640×400×100 | 640×400×100 | 760×490×120 | 760×490×120 | 1060×820×310 | 1476×1200×260 | 1476×1200×260 | 1256×1559×260 | 1256×1559×260 |
| Foot screw hole position | 590×340 | 600×335 | 580×330 | 580×330 | 700×420 | 700×420 | 990×650 | 1350×1074 | 1350×1074 | 1421×1116 | 1420×1116 (×690) |
| Dynamometer net weight (Kg) | 170 | 180 | 200 | 200 | 410 | 435 | 950 | 2800 | 2900 | 3200 | 3300 |
| Maximum spindle speed (r/min) | 9000 | 7500 | 7500 | 5000 | 5000 | 3500 | 3000 | 3000 | 3000 | 3000 | 3000 |
| Moment of inertia (Kg.M2) | 0.012 | 0.041 | 0.065 | 0.074 | 0.480 | 0.511 | 0.721 | 3.6 | 4 | 6.8 | 7.1 |
YP series (pressure type) hydraulic dynamometers have been widely used abroad in the 1960s and 1970s. In 1985, through license trade, China introduced the technology of Zoller Company, West Germany, to develop and produce this type of advanced dynamometer. At present, the process technology has been used in the production of a whole series of products in China. Internationally, there are Fraud in England and Cairn Company in the United States. In addition, two domestic companies have produced this series of products in small batches through imitation. Our company digests and absorbs foreign technology, carries out new optimization design and production, and can provide a full range of products.

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