- Vehicle type: unspecified
- Rigid chassis
- WhichTractor size: Standard-size
- No lab test on file
- 1939–1944
- 100 built
WhichTractor size, not the maker’s category
We looked and the record does not say what this machine is. How we decide what a machine is
BOLINDER-MUNKTELL BM-4 specs: hp, weight, years
The manufacturer claimed 31.5 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
31.5 hp
23.5 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Bolinder-Munktell BM 4”, 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.
- Weight
- 5,181 lb
- Top speed
- 9.3 mph
BOLINDER-MUNKTELL BM-4 specs: key facts
The BOLINDER-MUNKTELL BM-4 was built from 1939 to 1944.
The BOLINDER-MUNKTELL BM-4 has a claimed engine power (gross or net not stated) of 23.5 kW (31.5 hp); it has no measured PTO figure.
The BOLINDER-MUNKTELL BM-4 is two-wheel drive (2WD).
The BOLINDER-MUNKTELL BM-4 weighs 2,350 kg (5,181 lb) unladen.
The BOLINDER-MUNKTELL BM-4 has a rear PTO running at 610 rpm.
Source · Traktorenlexikon, “Bolinder-Munktell BM 4”
How does the BM-4 compare with its class?
- Limitation:
Four forward gears is low for its class — 33% below the median of 6 across the 169 machines within 10% of its power that hold this figure.
- Worth knowing:
An unladen mass of 2,350 kg is high for its class — 40% above the median of 1,678 kg across the 169 machines within 10% of its power that hold this figure.
Derived by WhichTractor from 169 comparable records. How we work this out
How much horsepower does a BM-4 have?
The only figure for the BM-4 is 31.5 hp (23.5 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Bolinder-Munktell BM 4”
How much will a BM-4 lift?
Hydraulic and PTO specifications for the BM-4 are below.
| Rear PTO | 610 rpm |
|---|
Source · Traktorenlexikon, “Bolinder-Munktell BM 4”
What transmission does a BM-4 have?
Transmission specifications for the BM-4 are below.
| Steering | Mechanical steering |
|---|---|
| Top speed | 9.3 mph · 15 km/h |
Source · Traktorenlexikon, “Bolinder-Munktell BM 4”
How much does a BM-4 weigh?
A BM-4 weighs 5,181 lb (2,350 kg) unladen.
| Unladen weight | 5,181 lb · 2,350 kg |
|---|---|
| Wheelbase | 75.0 in · 1,905 mm |
| Length | 137.0 in · 3,480 mm |
| Width | 66.9 in · 1,700 mm |
| Height | 78.7 in · 2,000 mm |
| Ground clearance | 15.7 in · 400 mm |
| Front track | 52.4 in · 1,330 mm |
| Rear track | 55.1 in · 1,400 mm |
Source · Traktorenlexikon, “Bolinder-Munktell BM 4”
Which tractors compare with a BM-4?
Within 10% of its 30 hp at the PTO as the maker claimed it, with no laboratory test on file, the same type, and first built within 15 years of it.
- Lanz D 853930 hp PTO, claimed · 1934–1939Side by side with the BM-4 →
- Fahr D 30L30 hp PTO, claimed · 1951–1953Side by side with the BM-4 →
- Fahr D 270B30.2 hp PTO, claimed · 1953–1964Side by side with the BM-4 →
- Fahr D 27030.2 hp PTO, claimed · 1954–1958Side by side with the BM-4 →
- Fahr D 270H30.2 hp PTO, claimed · 1954–1958Side by side with the BM-4 →
- International Harvester F-3030.3 hp PTO, claimed · 1931–1940Side by side with the BM-4 →
Common questions about the BOLINDER-MUNKTELL BM-4
Is a BM-4 two-wheel drive or four-wheel drive?
The BOLINDER-MUNKTELL BM-4 is two-wheel drive (2WD).
What PTO does a BM-4 have?
A BM-4 has a 610 rpm rear PTO.
Sources and how this page was built
Compiled from Traktorenlexikon, “Bolinder-Munktell BM 4”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Bolinder-Munktell BM 4 — CC BY-SA 4.0, WIKIBOOKS-TL-116150 · revision 994495. Wikibooks contributors (Traktorenlexikon). Original document