SOMECA 650 (TD) or SOMECA 670 (DT)?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the 650 (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 670 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The SOMECA 650 (TD) suits loader and hydraulic implement work better on this data: 24% (5.6 L/min / 1.5 gpm) more hydraulic flow.
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 | 650 (TD) | 670 (DT) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 47.8 kW (64.1 hp)Traktorenlexikon, “Someca 650” | 47.8 kW (64.1 hp)Traktorenlexikon, “Someca 670” | Not comparableNot comparable on power at the PTO shaft: the 650 (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 670 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft. |
| 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 650 (TD) and the 670 (DT). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 650 (TD) and the 670 (DT). |
| Which pumps more oil for implements? | 28.8 L/min (7.6 gpm)Traktorenlexikon, “Someca 650” | 23.2 L/min (6.1 gpm)Traktorenlexikon, “Someca 670” | AheadThe SOMECA 650 (TD) has 24% more hydraulic flow (5.6 L/min / 1.5 gpm) than the SOMECA 670 (DT) (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | 2,080 kg (4,586 lb)Traktorenlexikon, “Someca 650” | 2,510 kg (5,534 lb)Traktorenlexikon, “Someca 670” | Not comparableNot comparable on three-point lift: the 650 (TD): lift at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 650”); the 670 (DT): lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 670”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 2,875 kg (6,338 lb)Traktorenlexikon, “Someca 650” | 2,740 kg (6,041 lb)Traktorenlexikon, “Someca 670” | EvenEven on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which may carry more ballast and load? | — | — | No figureNo call on maximum permissible mass: no figure on record for the 650 (TD) and the 670 (DT). |
| Which has the wider choice of gears? | 7 to 14Traktorenlexikon, “Someca 650” | 7Traktorenlexikon, “Someca 670” | EvenEven on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the 650 (TD) and the 670 (DT). |
| Which is faster on the road? | 24 km/h (14.9 mph)Traktorenlexikon, “Someca 650” | 24 km/h (14.9 mph)Traktorenlexikon, “Someca 670” | EvenEven on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which offers more PTO speeds? | 540/1000 rpmTraktorenlexikon, “Someca 650” | 540 rpmTraktorenlexikon, “Someca 670” | AheadThe SOMECA 650 (TD) offers 1000 rpm at the PTO, which the SOMECA 670 (DT) does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Someca 650” | independentTraktorenlexikon, “Someca 670” | EvenEven on PTO independence: every PTO is independent. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 650” | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 670” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1971–1976 | 1968–1971 | 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 SOMECA 650 (TD) has 24% more hydraulic flow (5.6 L/min / 1.5 gpm) than the SOMECA 670 (DT) (both pump flow, as stated by the source).
- The SOMECA 650 (TD) offers 1000 rpm at the PTO, which the SOMECA 670 (DT) does not (as stated by the sources).
- Even on weight (both unladen weight, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on top speed (both top speed forward, as stated by the source): the difference is under the 10% threshold, too small to call.
- Even on PTO independence: every PTO is independent.
- 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.
- Not comparable on power at the PTO shaft: the 650 (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 670 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- Not comparable on three-point lift: the 650 (TD): lift at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 650”); the 670 (DT): lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 670”) — not the same quantity, basis and condition.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, maximum permissible mass and a creeper range.
← Every figure for both machines, side by side, with sources