International Harvester Hydro 84 or SOMECA 640 (TD)?
Which should you choose?
On performance, every comparable figure that differs favours the International Harvester Hydro 84: three-point lift. It is also ahead on top speed and PTO speeds.
- The International Harvester Hydro 84 suits PTO-driven implements (mowers, balers, pumps) better on this data: offers 1000 rpm.
- The International Harvester Hydro 84 suits loader and hydraulic implement work better on this data: 10% (188 kg / 414 lb) more three-point lift.
- The International Harvester Hydro 84 suits road haulage better on this data: 20% (5.0 km/h / 3.1 mph) more top speed.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “the same stated configuration”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | Hydro 84 | 640 (TD) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 42.3 kW (56.7 hp)Traktorenlexikon, “IHC Hydro-84” | 42.7 kW (57.2 hp)Traktorenlexikon, “Someca 640” | EvenEven on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the Hydro 84 and the 640 (TD). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the Hydro 84 and the 640 (TD). |
| Which pumps more oil for implements? | 33.7 L/min (8.9 gpm)Traktorenlexikon, “IHC Hydro-84” | — | No figureNo call on hydraulic flow: no figure on record for the 640 (TD). |
| Which lifts more on the three-point hitch? | 2,018 kg (4,449 lb)Traktorenlexikon, “IHC Hydro-84” | 1,830 kg (4,034 lb)Traktorenlexikon, “Someca 640” | AheadThe International Harvester Hydro 84 has 10% more lift (188 kg / 414 lb) than the SOMECA 640 (TD) (both lift at the hitch ends, as stated by the source). |
| Which is heavier, for traction? | 2,438 kg (5,375 lb)Traktorenlexikon, “IHC Hydro-84” | 2,125 kg (4,685 lb)Traktorenlexikon, “Someca 640” | Ahead (a fact, not an advantage)The International Harvester Hydro 84 is 15% heavier (313 kg / 690 lb) than the SOMECA 640 (TD) (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | — | — | No figureNo call on maximum permissible mass: no figure on record for the Hydro 84 and the 640 (TD). |
| Which has the wider choice of gears? | Stepless (CVT)Traktorenlexikon, “IHC Hydro-84” | 8 to 12 forwardTraktorenlexikon, “Someca 640” | DifferTransmissions differ in kind: the International Harvester Hydro 84 is stepless (CVT) and the SOMECA 640 (TD) has 8 to 12 forward gears — not called. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the Hydro 84 and the 640 (TD). |
| Which is faster on the road? | 30 km/h (18.6 mph)Traktorenlexikon, “IHC Hydro-84” | 25 km/h (15.5 mph)Traktorenlexikon, “Someca 640” | AheadThe International Harvester Hydro 84 has 20% more top speed (5.0 km/h / 3.1 mph) than the SOMECA 640 (TD) (both top speed forward, as stated by the source). |
| Which offers more PTO speeds? | 540/1000 rpmTraktorenlexikon, “IHC Hydro-84” | 540 rpmTraktorenlexikon, “Someca 640” | AheadThe International Harvester Hydro 84 offers 1000 rpm at the PTO, which the SOMECA 640 (TD) does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “IHC Hydro-84” | — | No figureNo call on PTO independence: not stated for the 640 (TD). |
| Which drives on both axles? | 2WD / 4WDTraktorenlexikon, “IHC Hydro-84” | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 640” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1977–1981 | 1973–1982 | EvenSame era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The International Harvester Hydro 84 has 10% more lift (188 kg / 414 lb) than the SOMECA 640 (TD) (both lift at the hitch ends, as stated by the source).
- The International Harvester Hydro 84 is 15% heavier (313 kg / 690 lb) than the SOMECA 640 (TD) (both unladen weight, as stated by the source).
- The International Harvester Hydro 84 has 20% more top speed (5.0 km/h / 3.1 mph) than the SOMECA 640 (TD) (both top speed forward, as stated by the source).
- The International Harvester Hydro 84 offers 1000 rpm at the PTO, which the SOMECA 640 (TD) does not (as stated by the sources).
- Even on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call.
- Transmissions differ in kind: the International Harvester Hydro 84 is stepless (CVT) and the SOMECA 640 (TD) has 8 to 12 forward gears — not called.
- Even on drive: every machine is available with four-wheel drive.
- Same era: production began within 5 years of each other. We hold no parts-availability data, so there is no call on parts.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, hydraulic flow, maximum permissible mass, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources