Volvo BM

Arvika-Thermaenius's first self-propelled combine harvester was the ST 67. It was equipped with a 55 hp gasoline or diesel engine, a 205 cm cutting width, and either a bagging attachment or a 20 hectoliter grain tank.

In 1957, its successor, the ST 68, was introduced, featuring an increased cutting width of 236 cm. The engines were still 55 horsepower: available were a Kämpers brand 3.1-liter diesel and Ford’s 3.6-liter gasoline engine. The combine did not have a travel speed variator. Instead, the gearbox had 8+2 partially synchronized gears. An unusual technical feature in this combine was a 180 cm wide threshing drum. Equally wide was the single-piece concave. There were six speed options for the threshing drum and four for the unloading drum. The threshing drum was fed by a conveyor belt. The unloading pipe of the grain tank combine was very short and placed low. The cutting table was raised hydraulically.

The flagship in Arvika-Thermaenius’s combine history is the ST 612, manufactured from 1957 to 1962, which was equipped with a 12-foot cutting table. Its smaller sibling was the 10-foot ST 610. The technical differences between these models and the ST 68 are minor. When using 10 and 12-foot cutting tables, a feed drum and straw walker were used. The engine was a 62-horsepower Perkins auxiliary chamber diesel. In certain export markets, including Britain, the combines were sold under the brand Viking. Thermaenius’s color scheme was the same green-yellow as later BM Volvos.

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Combines

Thermaenius ST 67-612

The first self-propelled combine harvester from Munktell was the MST-92, introduced in 1951. The cutting width was 9 feet, as in most other BM combines. The engine was a Volvo Penta 6-cylinder gasoline side-valve engine with a power output of 65 hp. The driving speed was changed using Volvo's 5-speed gearbox, as there was no variator. The threshing drum width was 110 cm and it had three rasp bars. There were four speed options for the threshing drum, of which 430 and 520 rpm probably saw little use. The cutting platform did not have a separate clutch; it operated whenever the threshing mechanism was running. The discharge pipe was not rotatable, but had to be removed together with the bottom auger of the tank.

A couple of years later, the MST-93 was introduced with some minor updates (the most visible change was a 6-blade straw walker), and in 1954 the MST-94 followed. However, significant changes only came with the 1956 model MST-95, which had a Volvo 4.7-liter diesel engine, a driving speed variator, and larger sieves. At this stage, the color also changed to BM’s dark blue.

Bolinder-Munktell was Sweden's largest combine harvester manufacturer, and self-propelled combine harvesters had become common in Sweden faster than in other European countries. In addition, BM's combines were produced under license in France and England.

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Munktell / Bolinder-Munktell MST 92-95

The Swedish company Ab Westeråsmaskiner's Aktiv (known as Aros in some countries) was a popular pull-type combine harvester, and in 1959, utilizing the technology of the pull-type combine, they developed the self-propelled combine harvester M2S. The self-propelled combine was also known in, for example, France under the brand Aros. The construction featured an unusually large number of lightweight metal parts for its time. Feeding from the cutting table was done via a belt. The threshing drum was a short, one-piece throwing drum. The front wheels were extremely small. The engine mounted above the threshing drums was initially a Mercedes diesel, later replaced by a Perkins. There were two gears, and the driving speed was controlled by a hydraulic variator. The 1962 models featured a longer threshing drum.

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Aktiv M2S

The updated versions of the Volvo BM S800 and S830 were named Volvo BM Aktiv 1110 and 1130. The engine was now 4-cylinder. Otherwise, the changes were quite minor. In 1981, the Electrolux Group bought the combine harvester manufacturing, which was centralized at the Morgongåva factory. The new brand name became Överum Aktiv.

The range was expanded with the 10-foot 1150, which had a hydrostatic transmission equipped with a directional control. There was a hydraulic motor and pump in front of the front axle. The driving speed was adjusted by changing the angle of the axial piston motor. The durability of the 1150 proved to be weak. Problems included, among other things, bearing housings bolted to the side panels without reinforcements.

Soon after the introduction of the Överum Aktiv models, Rosenlew bought the combine harvester manufacturing from Electrolux, and in 1985 the Överum Aktiv models were replaced by Aktiv Sampoes at the Morgongåva factory.

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Volvo BM Aktiv 1110 – 1130 / Överum Aktiv 1110-1150

The larger combine harvester alongside the Aktiv 800 was the Aktiv 1000, introduced in 1967. It was a combine harvester with a cutting width of 9 1/4 feet and was structurally mainly a widened version of the 800: it had four threshing drums instead of three, but its length was roughly the same as its smaller brother. The engine was a 4-cylinder Perkins (60 hp SAE). In 1969, the brand changed to BM Volvo as the Swedish combine harvester industry ended up under a single ownership. The history is somewhat complicated by the fact that Volvo had already previously had a combine harvester model called S1000, which was inherited from Munktell.

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Aktiv 1000 / BM Volvo 1000

The history of Swedish combine harvesters consists of manufacturers that Volvo acquired one by one: Bolinder-Munktell, Arvika-Thermaenius, and in 1969, Aktiv. After this, Volvo decided to discontinue the production of large combines (S 900 – 1000) and introduced two small models: the S 800, which was manufactured at the Aros factory in Västerås, and the S 830, which was produced by the Thermanius factory in Hallsberg. The different backgrounds also explain some of the differing technical solutions between the S 800 and S 830.

The S 800 had already been introduced to the market in 1966 under the name Aktiv 800. It had replaced the earlier Aktiv M 2 S model and was a major step forward in terms of appearance. Aktiv’s previously used carpet feed was replaced with a standard drum conveyor. The reel speed was adjustable via a variator, as was the fan speed. Alongside the Aktiv 800, there was a larger 10-foot Aktiv 1000, which was later sold under the name BM Volvo S 1000 until 1972. This model had nothing in common with the earlier model that bore the same number.

In 1974, the brand name changed from BM Volvo to Volvo BM. In 1975, the S 800 also received a hydrostatic variator for ground speed control and the steering was changed to hydrostatic.

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Aktiv 800 / Volvo BM S 800 – S 830

In 1966 the Bolinder-Munktell factory introduced the modern-styled S 950, which used the same 6-cylinder engine as the T 800 tractor. In keeping with the new design language, all of the technology was hidden behind hinged access panels. The engine was located beneath the grain tank, between the front wheels. The cutting header was usually 12 or 14 feet wide. The threshing mechanism was 110 cm across and the straw walkers were dimensioned the same as on the earlier S 1000 model. However, the bearings in the straw walkers had been changed from ball bearings to wooden bearings. The operator’s cab was positioned centrally, and the unloading auger could be swung into working position from inside the cab. The cutting header was detachable and was assisted by a gas spring for easy lifting.

A year later, the smaller S 900 was introduced alongside it; the width of its threshing mechanism was reduced to 100 cm. It was powered by a 4-cylinder Perkins engine, which was mounted above and behind the grain tank. After these models, Volvo concentrated on producing small combines and began importing Claas combines into Sweden to fill out its range in the medium and large classes.

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BM Volvo S 900 – S 950

More from this manufacturer

<p>The BM Volvo S 280 was a modernized model of the ST 257. The engine was either a Volvo petrol engine or a more powerful Perkins diesel. The transmission gearing was faster than before. The cutting width was 8 1/4 feet. The speed control variator of the loading reel was operable from the driver's seat. The seat and the tilt of the steering column were adjustable. The design had been modified to be slightly more angular.</p>
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The BM Volvo S 280 was a modernized model of the ST 257. The engine was either a Volvo petrol engine or a more powerful Perkins diesel. The transmission gearing was faster than before. The cutting width was 8 1/4 feet. The speed control variator of the loading reel was operable from the driver's seat. The seat and the tilt of the steering column were adjustable. The design had been modified to be slightly more angular.

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BM Volvo S 280

Malli

Hinta (sis. alv)

Imported to Finland

Years

First year sold

Last year sold

Engine

Engine type

Moottorin merkki ja malli

Turbo

Teho

Iskutilavuus

Sylinterien lukumäärä

Moottorin sijainti

Polttoainesäiliön tilavuus

Ajovoimansiirron tyyppi

Nopeusalueiden lukumäärä

Neliveto

Työleveys

Leikkuuleveys

Leikkuupöydän korkeuden säätö

Syöttöruuvin harjan etäisyys terän sormien kärjestä

Terän korkeus, minimi

Terän korkeus, maksimi

Leikkuupöydän korkeuden osoitin

Säätö korkeussuunnassa

Säätö pituussuunnassa

Nopeuden säätö

Puintikelojen lukumäärä

Varstojen lukumäärä

Kelojen leveys

Kelojen nopeus, maksimi

Kelojen nopeuden säätötapa

Varstasiltojen lukumäärä

Siltojen pituudet (varstojen ulkoreunasta mitaten)

Puintivälin säätö

Puintivälin toteaminen ja mittaus

Kohlimien lukumäärä

Kohlimien leveys

Kohlimien pituus

Kohlimien pinta-ala

Ruumenpinta-ala

Siemenpinta-ala

Eturaideväli

Akseliväli

Pituus kuljetusasennossa ilman pöytää

Korkeus (ylimp. kiint. pisteeseen)

Leveys, työasennossa

Leveys, kuljetusasennossa

Maavara koneen alla (minimi)

Viljasäiliön tilavuus

Viljasäiliön tilavuus lisälaidoin

Paino työkunnossa (polttoainesäiliöt täynnä)

Jarrut

Laonnostimien lukumäärä

Ruumenseulan tyyppi

Työvalojen lukumäärä

Työvalojen tyyppi

Teho, kW/Suurimman tehon kierrosluku, r/min

Suurimman tehon kierrosluku

Iskutilavuus, cm3/Sylinterien lukumäärä, kpl

Nopeus, km/h

Työleveys (jakol. kärjestä mitattuna), cm/Leikkuuleveys, cm

Terän alin...ylin taso (korkeus maasta), cm

Laonnostokelan säätöalue, r/min

Puintikela 1 halkaisija

Puintikela 2 halkaisija

Puintikela 3 halkaisija

Puintikelojen halkaisijat, cm

Puintikelojen nopeuden säätö

Varstojen 1 tehollinen pinta-ala (kaareva pituus x kelan leveys)

Varstojen 2 tehollinen pinta-ala (kaareva pituus x kelan leveys)

Varstojen 3 tehollinen pinta-ala (kaareva pituus x kelan leveys)

Varstojen teholliset pinta-alat (kaareva pit. x kelan lev.), dm2

Kohlintilan leveys x kohlinten pituus, cm

Renkaat edessä

Renkaat takana

Displacement

Esipuhdistaja

Cyl/turbo

Läpimitta (piikk.kärk.)

Power

Alternative hp

Fuel tank

Transmission

Gears

Speed min-max.

Cutting width

Cutting width, alternative

Myynti

Takaraideväli, cm

Reel diameter

Header length

Threshing cyl. diameter

2. cyl. diameter

Threshing cyl. width

Number of straw walkers

Area of walkers

Lenght of walkers

Etusivu

Ajoneuvot ja ympäristö

Huolto ja tekniikka

Lukijan idea

Maarakennus

Maatalous

Osastot

Metsä

Pääkirjoitus

Uutiset

Weteraani

Yritykset ja tapahtumat

Lukijan kuvat

Koneviesti

Lehdet

Konedata

Palvelut

Tilaa Koneviesti

Asiakaspalvelu

Jätä ilmoitus

Tilaa uutiskirje

Lähetä uutisvinkki

Lähetä palautetta

Lähetä oikaisupyyntö

Toimituksen yhteystiedot

Mediamyynnin yhteystiedot

Ota yhteyttä

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Model	BM Volvo S 280
Imported to Finland	Yes
Years	1967-69
First year sold	1967
Last year sold	1969
Engine	Perkins
Engine type	4.107
Displacement	1760 cm³
Cyl/turbo	4
Power	41 SAE hp DIN
Alternative hp	Volvo B18 38 hv SAE hp
Fuel tank	60 l
Transmission	mech.
Gears	3
Speed min-max.	1,7-24,0 km/h
Cutting width	236 cm
Threshing cyl. diameter	55 cm
Threshing cyl. width	75.5 cm
Number of straw walkers	3
Area of walkers	204 dm²
Lenght of walkers	267 cm
Straw shieve	58 dm²
Bottom shieve	61 dm²
Total screening area	147
Overall lenght	600 cm
Overall width	285 cm
Height without cabin	305 cm
Weight without cabin	2175 kg
Grain tank	14.6 hl
Unl. height	247 cm
Tyres front (Finland)	11.2-24
Tyres rear (Finland)	6.00-16
Reel forward/backw. adjustment	mech.
Reel speed adjustment	adj, in cabin
Threshing cyl. speed adjustment	by moving the V-belt
Bottom sieve	convertible
Brakes	mech. disc
Type of cutting platform floating	spring