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Hydraulic Dynamometers
 The Froude Hofmann F Range of Hydraulic Dynamometers has been designed to be compact, robust and for ease of maintenance. The dynamometers are fitted with two half couplings which, with the rotor, are oil injected onto the shaft. The standard machines run in grease lubricated rolling element bearings.
The dynamometer working compartment consists of special semi-circular shaped vanes cast into stainless steel rotor and stators. Water flowing in a toroidal vortex pattern around these vanes creates a torque reaction through the dynamometer casing which is resisted and measured by a precision load cell. The dynamometer load is controlled by a 'butterfly' water outlet valve, operated by a closed loop electro-hydraulic servo system. The power absorbed by the dynamometer is carried away by the water in the form of heat.
Main Features:
- Torque measurement accuracy ±0.25% of full rated torque of dynamometer
- Speed measurement accuracy ±1 RPM
- Servo load control
- Rapid response
- Stable operation
- High reliability
- Easy maintenance
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| F24 |
750 (1,010) |
2,700 (1,900) |
9,000 |
002396 |
| F246 |
750 (1,010) |
2,700 (1,990) |
9,000 |
003011 |
| F246FFR |
750 (1,010) |
2,700 (1,990) |
11,000 |
001980 |
| F249 |
750 (1,010) |
1,270 (940) |
16,000 |
001253 |
| RF24AV |
750 (1,010) |
1,780 (1,310) |
10,000 |
004440 |
| F35 |
1,640 (2,200) |
7,120 (5,250) |
6,000 |
002483 |
| F35A |
1,640 (2,200) |
10,780 (7,950) |
6,000 |
004088 |
| F359 |
1640 (2200) |
5220 (3850) |
9,000 |
001902 |
| RF35AV |
1640 (2200) |
7120 (5250) |
6,000 |
002475 |
| F47 |
3300 (4425) |
18500 (13650) |
4,500 |
001774 |
| F47A |
3300 (4425) |
28470 (21000) |
4,500 |
003981 |
| F476 |
3300 (4425) |
18500 (13650) |
4,500 |
002847 |
| F479 |
3300 (4425) |
18500 (13650) |
4,500 |
002476 |
| RF47AV |
3300 (4425) |
17850 (13150) |
4,500 |
004046 |
| F63 |
6700 (9000) |
50000 (36900) |
3,600 |
001775 |
| F639 |
6700 (9000) |
37000 (27300) |
5,000 |
002477 |
| RF63AV |
6700 (9000) |
47120 (34800) |
3,600 |
003917 |
| F84 |
12000 (16100) |
142000 (104750) |
2000 |
001776 |
| F849 |
12000 (16100) |
76000 (56100) |
4,000 |
003531 |
| RF84AV |
12000 (16100) |
101400 (74800) |
2,000 |
004043 |
| RF84D |
12000 (16100) |
142000 (104750) |
2,000 |
001922 |
| F84D |
24000 (32200) |
213000 (157000) |
1,200 |
001894 |
| F849D |
29840 (40000) |
101700 (75000) |
4,000 |
004321 |
| H120 |
1200 (1595) |
6000 (4480) |
5,500 |
5D63308-4K9-99 |
| H500DF |
5000 (6700) |
50000 (36900) |
2,500 |
5D26807-4K9-99 |
| BFB4F |
7500 (10000) |
100000 (74,600) |
2,300 |
5D19674-4K9-99 |
| BFB60 |
12500 (16750) |
250000 (186500) |
1,500 |
5D60637-4K9-99 |
| AFB60 |
25000 (33500) |
400000 (298400) |
1,500 |
5D58937-4K9-99 |
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