Hermann Lanz D 634 L or ZETOR 3511/3545?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the D 634 L has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 3511/3545 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The Hermann Lanz D 634 L suits loader and hydraulic implement work better on this data: 85% (850 kg / 1,874 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 | D 634 L | 3511/3545 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 25.6 kW (34.3 hp)Traktorenlexikon, “HELA D 634 L (D 635 L)” | 25.7 kW (34.5 hp)Traktorenlexikon, “Zetor 3511” | Not comparableNot comparable on power at the PTO shaft: the D 634 L has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 3511/3545 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 D 634 L and the 3511/3545. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the D 634 L and the 3511/3545. |
| Which pumps more oil for implements? | — | 20.0 L/min (5.3 gpm)Traktorenlexikon, “Zetor 3511” | No figureNo call on hydraulic flow: no figure on record for the D 634 L. |
| Which lifts more on the three-point hitch? | 1,850 kg (4,079 lb)Traktorenlexikon, “HELA D 634 L (D 635 L)” | 1,000 kg (2,205 lb)Traktorenlexikon, “Zetor 3511” | AheadThe Hermann Lanz D 634 L has 85% more lift (850 kg / 1,874 lb) than the ZETOR 3511/3545 (both lift at the hitch ends, as stated by the source). |
| Which is heavier, for traction? | 1,780 kg (3,924 lb)Traktorenlexikon, “HELA D 634 L (D 635 L)” | 1,530 kg (3,373 lb)Traktorenlexikon, “Zetor 3511” | Ahead (a fact, not an advantage)The Hermann Lanz D 634 L is 16% heavier (250 kg / 551 lb) than the ZETOR 3511/3545 (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 D 634 L and the 3511/3545. |
| Which has the wider choice of gears? | 8 to 10Traktorenlexikon, “HELA D 634 L (D 635 L)” | 10Traktorenlexikon, “Zetor 3511” | 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? | YesTraktorenlexikon, “HELA D 634 L (D 635 L)” | — | No figureNo call on a creeper range: not stated for the 3511/3545. |
| Which is faster on the road? | 25 km/h (15.5 mph)Traktorenlexikon, “HELA D 634 L (D 635 L)” | 25 km/h (15.5 mph)Traktorenlexikon, “Zetor 3511” | 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? | 545/1050 rpmTraktorenlexikon, “HELA D 634 L (D 635 L)” | 540 rpmTraktorenlexikon, “Zetor 3511” | No figureNo call on PTO speeds: no standard PTO speed stated for the D 634 L. |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “HELA D 634 L (D 635 L)” | independentTraktorenlexikon, “Zetor 3511” | EvenEven on PTO independence: every PTO is independent. |
| Which drives on both axles? | 2WDTraktorenlexikon, “HELA D 634 L (D 635 L)” | 2WD / 4WDTraktorenlexikon, “Zetor 3511” | AheadThe ZETOR 3511/3545 is available with four-wheel drive; the Hermann Lanz D 634 L is two-wheel drive (as stated by the sources). |
| Which is newer, and what about parts? | 1977–1980 | 1967–1972 | Ahead (a fact, not an advantage)The Hermann Lanz D 634 L is newer: production began 10 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The Hermann Lanz D 634 L has 85% more lift (850 kg / 1,874 lb) than the ZETOR 3511/3545 (both lift at the hitch ends, as stated by the source).
- The Hermann Lanz D 634 L is 16% heavier (250 kg / 551 lb) than the ZETOR 3511/3545 (both unladen weight, as stated by the source).
- The ZETOR 3511/3545 is available with four-wheel drive; the Hermann Lanz D 634 L is two-wheel drive (as stated by the sources).
- The Hermann Lanz D 634 L is newer: production began 10 years later. We hold no parts-availability data, so there is no call on parts.
- 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.
- Not comparable on power at the PTO shaft: the D 634 L has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 3511/3545 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, hydraulic flow, maximum permissible mass, a creeper range and PTO speeds.
← Every figure for both machines, side by side, with sources