John Deere 4640 (A) or SOMECA 1880 (TD)?
Which should you choose?
The data can’t decide this. Power at the PTO shaft cannot be compared: the 4640 (A) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 1880 (TD) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft.
- The SOMECA 1880 (TD) suits loader and hydraulic implement work better on this data: 78% (2,577 kg / 5,681 lb) more three-point lift.
- The SOMECA 1880 (TD) suits road haulage better on this data: 19% (1,570 kg / 3,461 lb) more maximum permissible mass.
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 | 4640 (A) | 1880 (TD) | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 130.8 kW (175.4 hp)Traktorenlexikon, “John Deere 4640” | 132.4 kW (177.6 hp)Traktorenlexikon, “Someca 1880” | Not comparableNot comparable on power at the PTO shaft: the 4640 (A) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 1880 (TD) 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 4640 (A) and the 1880 (TD). |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the 4640 (A) and the 1880 (TD). |
| Which pumps more oil for implements? | 126 L/min (33.3 gpm)Traktorenlexikon, “John Deere 4640” | — | No figureNo call on hydraulic flow: no figure on record for the 1880 (TD). |
| Which lifts more on the three-point hitch? | 3,323 kg (7,326 lb)Traktorenlexikon, “John Deere 4640” | 5,900 kg (13,007 lb)Traktorenlexikon, “Someca 1880” | AheadThe SOMECA 1880 (TD) has 78% more lift (2,577 kg / 5,681 lb) than the John Deere 4640 (A) (both lift at the hitch ends, as stated by the source). |
| Which is heavier, for traction? | 6,510 kg (14,352 lb)Traktorenlexikon, “John Deere 4640” | 6,500 kg (14,330 lb)Traktorenlexikon, “Someca 1880” | 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? | 8,430 kg (18,585 lb)Traktorenlexikon, “John Deere 4640” | 10,000 kg (22,046 lb)Traktorenlexikon, “Someca 1880” | AheadThe SOMECA 1880 (TD) has 19% higher maximum permissible mass (1,570 kg / 3,461 lb) than the John Deere 4640 (A) (both maximum permissible mass, as stated by the source). |
| Which has the wider choice of gears? | 16Traktorenlexikon, “John Deere 4640” | 12 to 24Traktorenlexikon, “Someca 1880” | 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 4640 (A) and the 1880 (TD). |
| Which is faster on the road? | 30 km/h (18.6 mph)Traktorenlexikon, “John Deere 4640” | 25 km/h (15.5 mph) to 30 km/h (18.6 mph)Traktorenlexikon, “Someca 1880” | EvenEven on top speed (both top speed forward, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers more PTO speeds? | 1000 rpmTraktorenlexikon, “John Deere 4640” | 1000 rpmTraktorenlexikon, “Someca 1880” | EvenEven on PTO speeds: the same speeds (1000 rpm). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “John Deere 4640” | independentTraktorenlexikon, “Someca 1880” | EvenEven on PTO independence: every PTO is independent. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “John Deere 4640” | Two-wheel or four-wheel driveTraktorenlexikon, “Someca 1880” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1978–1982 | 1979–1983 | 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 1880 (TD) has 78% more lift (2,577 kg / 5,681 lb) than the John Deere 4640 (A) (both lift at the hitch ends, as stated by the source).
- The SOMECA 1880 (TD) has 19% higher maximum permissible mass (1,570 kg / 3,461 lb) than the John Deere 4640 (A) (both maximum permissible mass, as stated by the source).
- Even on weight (both unladen weight, 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 figures vary by configuration and the ranges overlap.
- Even on PTO speeds: the same speeds (1000 rpm).
- Even on PTO independence: every PTO is independent.
- 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 4640 (A) has only engine power (gross or net not stated), claimed — a different quantity from power at the shaft; the 1880 (TD) 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 and a creeper range.
← Every figure for both machines, side by side, with sources