SOMECA 550 (DT) or SOMECA 615 (DT)?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the 550 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 615 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
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 | 550 (DT) | 615 (DT) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 38.2 kW (51.2 hp)Traktorenlexikon, “Someca 550” | 38.2 kW (51.2 hp)Traktorenlexikon, “Someca 615” | Not comparableNot comparable on power at the PTO shaft: the 550 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 615 (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 550 (DT) and the 615 (DT). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 550 (DT) and the 615 (DT). |
| Which pumps more oil for implements? | 21.8 L/min (5.8 gpm)Traktorenlexikon, “Someca 550” | 20.8 L/min (5.5 gpm)Traktorenlexikon, “Someca 615” | EvenEven on hydraulic flow (both pump flow, as stated by the source): the difference is under the 10% threshold, too small to call. |
| Which lifts more on the three-point hitch? | 1,450 kg (3,197 lb)Traktorenlexikon, “Someca 550” | 2,080 kg (4,586 lb)Traktorenlexikon, “Someca 615” | Not comparableNot comparable on three-point lift: the 550 (DT): lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 550”); the 615 (DT): lift at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 615”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 2,060 kg (4,542 lb)Traktorenlexikon, “Someca 550” | 2,640 kg (5,820 lb)Traktorenlexikon, “Someca 615” | Ahead (a fact, not an advantage)The SOMECA 615 (DT) is 28% heavier (580 kg / 1,279 lb) than the SOMECA 550 (DT) (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 550 (DT) and the 615 (DT). |
| Which has the wider choice of gears? | 8 to 12Traktorenlexikon, “Someca 550” | 7Traktorenlexikon, “Someca 615” | EvenEven on forward gears (both forward gears, as stated by the source): the difference is under the 25% threshold, too small to call. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the 550 (DT) and the 615 (DT). |
| Which is faster on the road? | 24 km/h (14.9 mph)Traktorenlexikon, “Someca 550” | 22 km/h (13.7 mph)Traktorenlexikon, “Someca 615” | 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 rpmTraktorenlexikon, “Someca 550” | 540 rpmTraktorenlexikon, “Someca 615” | EvenEven on PTO speeds: the same speeds (540 rpm). |
| Which PTO runs independently of the ground drive? | — | independentTraktorenlexikon, “Someca 615” | No figureNo call on PTO independence: not stated for the 550 (DT). |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 550” | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 615” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1968–1971 | 1965–1968 | 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 615 (DT) is 28% heavier (580 kg / 1,279 lb) than the SOMECA 550 (DT) (both unladen weight, as stated by the source).
- Even on hydraulic flow (both pump flow, 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 difference is under the 25% threshold, too small to call.
- 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 speeds: the same speeds (540 rpm).
- 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 550 (DT) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 615 (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 550 (DT): lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 550”); the 615 (DT): lift at the hitch ends, as stated by the source (Traktorenlexikon, “Someca 615”) — 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, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources