UTB U-650/651 M or ZETOR 6911/6945?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the U-650/651 M has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 6911/6945 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The UTB U-650/651M suits loader and hydraulic implement work better on this data: 65% (15.7 L/min / 4.1 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 | U-650/651 M | 6911/6945 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 47.8 kW (64.1 hp)Traktorenlexikon, “UTB U 650/651 M” | 47.8 kW (64.1 hp)Traktorenlexikon, “Zetor 6911” | Not comparableNot comparable on power at the PTO shaft: the U-650/651 M has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 6911/6945 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 U-650/651 M and the 6911/6945. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the U-650/651 M and the 6911/6945. |
| Which pumps more oil for implements? | 40.0 L/min (10.6 gpm)Traktorenlexikon, “UTB U 650/651 M” | 24.3 L/min (6.4 gpm)Traktorenlexikon, “Zetor 6911” | AheadThe UTB U-650/651M has 65% more hydraulic flow (15.7 L/min / 4.1 gpm) than the ZETOR 6911/6945 (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | — | 3,510 kg (7,738 lb)Traktorenlexikon, “Zetor 6911” | No figureNo call on three-point lift: no figure on record for the U-650/651 M. |
| Which is heavier, for traction? | 3,380 kg (7,452 lb)Traktorenlexikon, “UTB U 650/651 M” | 2,870 kg (6,327 lb)Traktorenlexikon, “Zetor 6911” | Ahead (a fact, not an advantage)The UTB U-650/651M is 18% heavier (510 kg / 1,124 lb) than the ZETOR 6911/6945 (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 U-650/651 M and the 6911/6945. |
| Which has the wider choice of gears? | 10Traktorenlexikon, “UTB U 650/651 M” | 10 to 20Traktorenlexikon, “Zetor 6911” | 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 U-650/651 M and the 6911/6945. |
| Which is faster on the road? | 27 km/h (16.8 mph)Traktorenlexikon, “UTB U 650/651 M” | 25 km/h (15.5 mph)Traktorenlexikon, “Zetor 6911” | 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, “UTB U 650/651 M” | 540/1000 rpmTraktorenlexikon, “Zetor 6911” | AheadThe ZETOR 6911/6945 offers 1000 rpm at the PTO, which the UTB U-650/651M does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | — | — | No figureNo call on PTO independence: not stated for the U-650/651 M and the 6911/6945. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “UTB U 650/651 M” | Two-wheel or four-wheel driveTraktorenlexikon, “Zetor 6911” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1973–1990 | 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 UTB U-650/651M has 65% more hydraulic flow (15.7 L/min / 4.1 gpm) than the ZETOR 6911/6945 (both pump flow, as stated by the source).
- The UTB U-650/651M is 18% heavier (510 kg / 1,124 lb) than the ZETOR 6911/6945 (both unladen weight, as stated by the source).
- The ZETOR 6911/6945 offers 1000 rpm at the PTO, which the UTB U-650/651M does not (as stated by the sources).
- 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 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 U-650/651 M has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 6911/6945 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, three-point lift, maximum permissible mass, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources