Satoh Bull S-630
Built: 1977-1984 · Series: Other models
More machines from model year 1977
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Satoh – other models: the collective page of Japanese compact tractors outside the named ranges, the animal names Bison, Bull and Buck and the ST range, 8.2 to 19 kW, Mitsubishi and Mazda engines
This page gathers the Satoh compact tractors the register could not assign to a named range. Satoh was a Japanese maker of small compact tractors that exported its models to North America and Europe under its own name in the 1970s and 1980s, giving them animal names such as Bison, Bull and Buck alongside the internal S and ST type designation; in Japan the same machines ran under the Mitsubishi name. The letter-and-number combinations such as S-470 or ST2600D roughly give the hp class, D stands for the diesel version.
Read on 3 more paragraphs
The register lists here 7 versions with 8.2 to 19 kW (11 to 26 hp) from two- to four-cylinders with engines from Mitsubishi and Mazda, lift capacities from 499 to 578 kg, all with diesel engines.
Satoh tractors are among the small Japanese compact tractors that opened up the North American and European market for hobby and small holdings in the 1970s, long before Kubota, Yanmar and Iseki were broadly present there under their own brands; the animal names served Western distribution as a memorable model name.
On these smallest tractors, engine condition and the cooling system, clutch and transmission, and hydraulic tightness matter, as well as rust on bodywork; spares are scarce because the brand was discontinued and mostly run through dealers specialising in Japanese compact tractors.
Sources: SpecCodex register, model data: Satoh (weitere Modelle)
Technical data
Engine
| Engine make | Mitsubishicorrect |
|---|---|
| Fuel | dieselcorrect |
| Power | 22 hp (11 kW)correct |
| Cylinders | 2correct |
| Displacement | 0.7 lcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Wheelbase | 48.2 (2WD); 49.8 in (MFWD)correct |
|---|---|
| Unladen weight | 1, 035.3 to 1, 180.6 lbscorrect |
Drivetrain and chassis
| Drive | selectable four-wheel drivecorrect |
|---|---|
| Forward gears | 9correct |
| Reverse gears | 3correct |
Working data
| Lifting capacity | 578 kgcorrect |
|---|---|
| Lifting capacity | 1274 lbs (577.9 kg)correct |
| Fuel tank capacity | 3.3 galcorrect |
Origin and approval
| Plant | Japancorrect |
|---|
Other data
| Linkage category | Cat Icorrect |
|---|---|
| PTO speed | 540/1000correct |
| Predecessor | Satoh Mitsubishi Beaver S-370; Satoh Mitsubishi Beaver S-370Dcorrect |
Frequently asked questions
How much power does the Satoh Bull S-630 have?
The Satoh Bull S-630 delivers 22 hp.
What engine does the Satoh Bull S-630 have?
2 cylinders, Diesel.
How much does the rear linkage of the Satoh Bull S-630 lift?
The rear linkage lifts 578 kg.
When was the Satoh Bull S-630 built?
Production years: 1977-1984.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 21 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: Tractor & Construction Plant Wiki (CC BY-SA 3.0) (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
