- Rigid chassis
- WhichTractor size: Standard-size
- Not independently tested
- 1949–1957
- 6,919 built
It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
BOLINDER-MUNKTELL BM-31 Full specifications
AB-VOLVO D 4 F four-cylinder petrol. The manufacturer claimed 34 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
34 hp
25 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”, claimed
- Weight
- 5,060 lb
- Hyd. flow
- 6.3 gpm
- Top speed
- 18.6 mph
BOLINDER-MUNKTELL BM-31 specs: key facts
The BOLINDER-MUNKTELL BM-31 was built from 1949 to 1957.
The BOLINDER-MUNKTELL BM-31 has a claimed engine power (gross or net not stated) of 25 kW (34 hp); it has no measured PTO figure.
The BOLINDER-MUNKTELL BM-31 is two-wheel drive (2WD).
The BOLINDER-MUNKTELL BM-31 has a AB-VOLVO D 4 F engine, a 4-cylinder 3.46 L petrol unit.
The BOLINDER-MUNKTELL BM-31 weighs 2,295 kg (5,060 lb) unladen.
The BOLINDER-MUNKTELL BM-31 has a rear PTO running at 540 rpm.
The hydraulic pump of the BOLINDER-MUNKTELL BM-31 delivers 23.8 L/min (6.3 gpm).
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”
How much horsepower does a BM-31 have?
The only figure for the BM-31 is 34 hp (25 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”
What engine is in a BM-31?
A BM-31 has an AB-VOLVO D 4 F, a 4-cylinder 3.46 L petrol engine.
| Make & model | AB-VOLVO D 4 F |
|---|---|
| Cylinders | 4, liquid-cooled |
| Displacement | 210.9 ci · 3.46 L |
| Max torque | 134 lb·ft · 182 N·m @ 1,200 rpm |
| Electrical system | 6 V |
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”
How much will a BM-31 lift, and what is its hydraulic flow?
Hydraulic and PTO specifications for the BM-31 are below.
| Pump flow | 6.3 gpm · 23.8 L/min |
|---|---|
| Pressure | 1,276 psi · 88 bar |
| Rear PTO | transmission-driven, 540 rpm @ 1,500 engine rpm |
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”
What transmission does a BM-31 have?
Transmission specifications for the BM-31 are below.
| Clutch | pedal-operated dry single-disc clutch |
|---|---|
| Brakes | pedal-operated internal expanding brakes acting on rear wheels |
| Steering | mechanical steering |
| Top speed | 18.6 mph · 30 km/h |
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”
How much does a BM-31 weigh?
A BM-31 weighs 5,060 lb (2,295 kg) unladen.
| Unladen weight | 5,060 lb · 2,295 kg |
|---|---|
| Wheelbase | 77.2 in · 1,960 mm |
| Length | 122.6 in · 3,115 mm |
| Width | 72.4 in · 1,839 mm |
| Height | 71.7 in · 1,820 mm |
| Ground clearance | 16.5 in · 420 mm |
| Front track | 47.2–56.9 in · 1,200–1,445 mm |
| Rear track | 56.7–76.4 in · 1,440–1,940 mm |
Source · Traktorenlexikon, “Bolinder-Munktell BM 31”
Which tractors compare with a BM-31?
Within 10% of its 34 hp of claimed engine power, the same type, and first built within 15 years of it.
- Volvo T-3134 hp engine, claimed · 1949–1957Side by side with the BM-31 →
- Ford 2000 "V" (Dexta)34 hp engine, claimed · 1964–1975Side by side with the BM-31 →
- J.I. Case Modell-DC33.0 hp engine, claimed · 1939–1953Side by side with the BM-31 →
- Renault N 7134.1 hp engine, claimed · 1960–1963Side by side with the BM-31 →
- International Harvester FU-265 D34.5 hp engine, claimed · 1959–1961Side by side with the BM-31 →
- SOMECA SOM-30 B34.5 hp engine, claimed · 1960–1963Side by side with the BM-31 →
Everything else people ask
Is a BM-31 two-wheel drive or four-wheel drive?
The BOLINDER-MUNKTELL BM-31 is two-wheel drive (2WD).
What PTO does a BM-31 have?
A BM-31 has a 540 rpm rear PTO.
Where this page comes from
Compiled from Traktorenlexikon, “Bolinder-Munktell BM 31”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Bolinder-Munktell BM 31 — CC BY-SA 4.0, WIKIBOOKS-TL-116152 · revision 994508. Wikibooks contributors (Traktorenlexikon). Original document