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Locomotive-Specs
SLM Bm 4/4 – photo 1© trainspo.com
Diesel locomotive

SLM Bm 4/4

Built by SLM, SAAS

Top speed
75 km/h
47 mph
Power output
620 kW
831 hp
Weight
72 t
158,733 lb
Track gauge
1,435 mm
Standard gauge
Years built
1960–1970
46 units
Axle arrangement
Bo'Bo'

Overview of the SLM Bm 4/4

Discover the Bm 4/4, a versatile diesel locomotive built by SLM and SAAS between 1960 and 1970.

With a top speed of 75 km/h and a 1435 mm gauge, this Bo'Bo' classification locomotive is perfectly suited for shunting and branch line service.

Weighing 72 tons and boasting a power output of 620 kW, the Bm 4/4 is a robust and reliable machine.

Its service history with Swiss Federal Railways (SBB) and Marti AG highlights its significance in Swiss railway operations.

A classic Swiss locomotive, it combines performance with dependability.

SLM Bm 4/4 technical specifications

Value
Built bySLM, SAAS · 1960–197046 units
Top speed75 km/h47 mph
Power output620 kW831 hp
Track gauge1,435 mmStandard gauge4 ft 8½ in
UIC axle arrangementBo'Bo'
Weight72 t158,733 lb
Source of the data: en.wikipedia.orgView this model on trainspo.com Spotted an error? Let us know

Operators of the SLM Bm 4/4

Railway companies that have operated the Bm 4/4, with the class designation used by each of them.

OperatorClassCountry
Marti AGMarti Bm 840Switzerland
Swiss Federal RailwaysSBB Bm 4/4Switzerland

SLM Bm 4/4 photos

Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.

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