• Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1973–1982

It sits on the utility/standard-size boundary, so either size is a fair description. WhichTractor size, not the maker’s category

SOMECA 640 (TD) Transmission specs

8 transmission values on record for the 640 (TD).

Engine power, claimed · gross or net not stated

63.2 hp

47.1 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Someca 640”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

How fast will a 640 (TD) go?

The fastest speed on record for a 640 (TD) is 15.5 mph (25 km/h). The gearbox itself is not on record yet.

Transmission — 640 (TD) Transmission
DriveAvailable in two-wheel and four-wheel driveOn record for 0 of 1 configurations
Forward gears8–12the article lists alternatives
Reverse gears2–3the article lists alternatives
Transmission as described8 forward/2 reverse or 12 forward/3 reverse
Top speed forward15.5 mph · 25 km/h
Top speed reverse7.9 mph · 12.67 km/hhighest reverse speed printed in the article's speed tables
Creeper gears available, optionalYes
Differential lockPedal-operated differential lock

Source · Traktorenlexikon, “Someca 640”

Sources and how this page was built

8 transmission values from Traktorenlexikon, “Someca 640”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: Someca 640 — CC BY-SA 4.0, WIKIBOOKS-TL-121326 · revision 1067921. Wikibooks contributors (Traktorenlexikon). Original document