SOMECA 450 Special (TD) or ZETOR 4911?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the 450 Special (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 4911 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The SOMECA 450 Special (TD) suits loader and hydraulic implement work better on this data: 26% (305 kg / 672 lb) more three-point lift.
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 | 450 Special (TD) | 4911 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 33.1 kW (44.4 hp)Traktorenlexikon, “Someca 450 S” | 33.1 kW (44.4 hp)Traktorenlexikon, “Zetor 4911” | Not comparableNot comparable on power at the PTO shaft: the 450 Special (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 4911 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 450 Special (TD) and the 4911. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 450 Special (TD) and the 4911. |
| Which pumps more oil for implements? | 23.4 L/min (6.2 gpm)Traktorenlexikon, “Someca 450 S” | 24.8 L/min (6.6 gpm)Traktorenlexikon, “Zetor 4911” | 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? | 1,500 kg (3,307 lb)Traktorenlexikon, “Someca 450 S” | 1,195 kg (2,635 lb)Traktorenlexikon, “Zetor 4911” | AheadThe SOMECA 450 Special (TD) has 26% more lift (305 kg / 672 lb) than the ZETOR 4911 (both lift at the hitch ends, as stated by the source). |
| Which is heavier, for traction? | 1,850 kg (4,079 lb)Traktorenlexikon, “Someca 450 S” | 2,170 kg (4,784 lb)Traktorenlexikon, “Zetor 4911” | Ahead (a fact, not an advantage)The ZETOR 4911 is 17% heavier (320 kg / 705 lb) than the SOMECA 450 Special (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 450 Special (TD) and the 4911. |
| Which has the wider choice of gears? | 8 to 12Traktorenlexikon, “Someca 450 S” | 10Traktorenlexikon, “Zetor 4911” | 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 450 Special (TD) and the 4911. |
| Which is faster on the road? | 25 km/h (15.5 mph)Traktorenlexikon, “Someca 450 S” | 25 km/h (15.5 mph)Traktorenlexikon, “Zetor 4911” | 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 450 S” | 540/1000 rpmTraktorenlexikon, “Zetor 4911” | AheadThe ZETOR 4911 offers 1000 rpm at the PTO, which the SOMECA 450 Special (TD) does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Someca 450 S” | — | No figureNo call on PTO independence: not stated for the 4911. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 450 S” | 2WDTraktorenlexikon, “Zetor 4911” | AheadThe SOMECA 450 Special (TD) is available with four-wheel drive; the ZETOR 4911 is two-wheel drive (as stated by the sources). |
| Which is newer, and what about parts? | 1978–1982 | 1977–1980 | 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 450 Special (TD) has 26% more lift (305 kg / 672 lb) than the ZETOR 4911 (both lift at the hitch ends, as stated by the source).
- The ZETOR 4911 is 17% heavier (320 kg / 705 lb) than the SOMECA 450 Special (TD) (both unladen weight, as stated by the source).
- The ZETOR 4911 offers 1000 rpm at the PTO, which the SOMECA 450 Special (TD) does not (as stated by the sources).
- The SOMECA 450 Special (TD) is available with four-wheel drive; the ZETOR 4911 is two-wheel drive (as stated by the sources).
- 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 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.
- 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 450 Special (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 4911 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- 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