SOMECA SOM-511 or ZETOR 5711?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the SOM-511 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 5711 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The ZETOR 5711 suits loader and hydraulic implement work better on this data: 32% (4.8 L/min / 1.3 gpm) more hydraulic flow.
- The ZETOR 5711 suits heavy draft work (ploughing, cultivating) better on this data: four-wheel drive.
- The ZETOR 5711 suits road haulage better on this data: 14% (3.0 km/h / 1.9 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 | SOM-511 | 5711 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 40.5 kW (54.3 hp)Traktorenlexikon, “Someca SOM 511” | 40.5 kW (54.3 hp)Traktorenlexikon, “Zetor 5711” | Not comparableNot comparable on power at the PTO shaft: the SOM-511 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 5711 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 SOM-511 and the 5711. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the SOM-511 and the 5711. |
| Which pumps more oil for implements? | 15.2 L/min (4.0 gpm)Traktorenlexikon, “Someca SOM 511” | 20.0 L/min (5.3 gpm)Traktorenlexikon, “Zetor 5711” | AheadThe ZETOR 5711 has 32% more hydraulic flow (4.8 L/min / 1.3 gpm) than the SOMECA SOM-511 (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | 1,490 kg (3,285 lb)Traktorenlexikon, “Someca SOM 511” | 1,700 kg (3,748 lb)Traktorenlexikon, “Zetor 5711” | Not comparableNot comparable on three-point lift: the SOM-511: lift at the hitch ends, as stated by the source (Traktorenlexikon, “Someca SOM 511”); the 5711: lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “Zetor 5711”) — not the same quantity, basis and condition. |
| Which is heavier, for traction? | 2,525 kg (5,567 lb)Traktorenlexikon, “Someca SOM 511” | 2,550 kg (5,622 lb)Traktorenlexikon, “Zetor 5711” | 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 SOM-511 and the 5711. |
| Which has the wider choice of gears? | 7Traktorenlexikon, “Someca SOM 511” | 10 to 20Traktorenlexikon, “Zetor 5711” | AheadThe ZETOR 5711 has 43% more forward gears (3 gears) than the SOMECA SOM-511 (both forward gears, as stated by the source). |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the SOM-511 and the 5711. |
| Which is faster on the road? | 22 km/h (13.7 mph)Traktorenlexikon, “Someca SOM 511” | 25 km/h (15.5 mph)Traktorenlexikon, “Zetor 5711” | AheadThe ZETOR 5711 has 14% more top speed (3.0 km/h / 1.9 mph) than the SOMECA SOM-511 (both top speed forward, as stated by the source). |
| Which offers more PTO speeds? | 540 rpmTraktorenlexikon, “Someca SOM 511” | 540 rpmTraktorenlexikon, “Zetor 5711” | EvenEven on PTO speeds: the same speeds (540 rpm). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Someca SOM 511” | independentTraktorenlexikon, “Zetor 5711” | EvenEven on PTO independence: every PTO is independent. |
| Which drives on both axles? | 2WDTraktorenlexikon, “Someca SOM 511” | 2WD / 4WDTraktorenlexikon, “Zetor 5711” | AheadThe ZETOR 5711 is available with four-wheel drive; the SOMECA SOM-511 is two-wheel drive (as stated by the sources). |
| Which is newer, and what about parts? | 1964–1965 | 1972–1977 | Ahead (a fact, not an advantage)The ZETOR 5711 is newer: production began 8 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The ZETOR 5711 has 32% more hydraulic flow (4.8 L/min / 1.3 gpm) than the SOMECA SOM-511 (both pump flow, as stated by the source).
- The ZETOR 5711 has 43% more forward gears (3 gears) than the SOMECA SOM-511 (both forward gears, as stated by the source).
- The ZETOR 5711 has 14% more top speed (3.0 km/h / 1.9 mph) than the SOMECA SOM-511 (both top speed forward, as stated by the source).
- The ZETOR 5711 is available with four-wheel drive; the SOMECA SOM-511 is two-wheel drive (as stated by the sources).
- The ZETOR 5711 is newer: production began 8 years later. We hold no parts-availability data, so there is no call on parts.
- Even on weight (both unladen weight, 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 PTO independence: every PTO is independent.
- Not comparable on power at the PTO shaft: the SOM-511 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 5711 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 SOM-511: lift at the hitch ends, as stated by the source (Traktorenlexikon, “Someca SOM 511”); the 5711: lift through the full range at the hitch ends, as stated by the source (Traktorenlexikon, “Zetor 5711”) — 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