BOLINDER-MUNKTELL BM-20 or SOMECA SOM-35?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the BM-20 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the SOM-35 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The SOMECA SOM-35 suits road haulage better on this data: 15% (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 | BM-20 | SOM-35 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 30.2 kW (40.5 hp)Traktorenlexikon, “Bolinder-Munktell BM 20” | 30.2 kW (40.5 hp)Traktorenlexikon, “Someca SOM 35” | Not comparableNot comparable on power at the PTO shaft: the BM-20 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the SOM-35 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 BM-20 and the SOM-35. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the BM-20 and the SOM-35. |
| Which pumps more oil for implements? | — | 16.5 L/min (4.4 gpm)Traktorenlexikon, “Someca SOM 35” | No figureNo call on hydraulic flow: no figure on record for the BM-20. |
| Which lifts more on the three-point hitch? | — | 1,200 kg (2,646 lb)Traktorenlexikon, “Someca SOM 35” | No figureNo call on three-point lift: no figure on record for the BM-20. |
| Which is heavier, for traction? | 2,650 kg (5,842 lb)Traktorenlexikon, “Bolinder-Munktell BM 20” | 1,510 kg (3,329 lb)Traktorenlexikon, “Someca SOM 35” | Ahead (a fact, not an advantage)The BOLINDER-MUNKTELL BM-20 is 75% heavier (1,140 kg / 2,513 lb) than the SOMECA SOM-35 (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 BM-20 and the SOM-35. |
| Which has the wider choice of gears? | 5Traktorenlexikon, “Bolinder-Munktell BM 20” | 6Traktorenlexikon, “Someca SOM 35” | 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 BM-20 and the SOM-35. |
| Which is faster on the road? | 20 km/h (12.4 mph)Traktorenlexikon, “Bolinder-Munktell BM 20” | 23 km/h (14.3 mph)Traktorenlexikon, “Someca SOM 35” | AheadThe SOMECA SOM-35 has 15% more top speed (3.0 km/h / 1.9 mph) than the BOLINDER-MUNKTELL BM-20 (both top speed forward, as stated by the source). |
| Which offers more PTO speeds? | 545 rpmTraktorenlexikon, “Bolinder-Munktell BM 20” | 540 rpmTraktorenlexikon, “Someca SOM 35” | No figureNo call on PTO speeds: no standard PTO speed stated for the BM-20. |
| Which PTO runs independently of the ground drive? | — | dependent (stops with the clutch)Traktorenlexikon, “Someca SOM 35” | No figureNo call on PTO independence: not stated for the BM-20. |
| Which drives on both axles? | 2WDTraktorenlexikon, “Bolinder-Munktell BM 20” | 2WDTraktorenlexikon, “Someca SOM 35” | EvenEven on drive: all two-wheel drive. |
| Which is newer, and what about parts? | 1945–1950 | 1960–1963 | Ahead (a fact, not an advantage)The SOMECA SOM-35 is newer: production began 15 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The BOLINDER-MUNKTELL BM-20 is 75% heavier (1,140 kg / 2,513 lb) than the SOMECA SOM-35 (both unladen weight, as stated by the source).
- The SOMECA SOM-35 has 15% more top speed (3.0 km/h / 1.9 mph) than the BOLINDER-MUNKTELL BM-20 (both top speed forward, as stated by the source).
- The SOMECA SOM-35 is newer: production began 15 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 difference is under the 25% threshold, too small to call.
- Even on drive: all two-wheel drive.
- Not comparable on power at the PTO shaft: the BM-20 has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the SOM-35 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, three-point lift, maximum permissible mass, a creeper range, PTO speeds and PTO independence.
← Every figure for both machines, side by side, with sources