DAKO-CZ: Brakes for trams in Gothenburg
DAKO-CZ to supply braking systems for modernised trams in Gothenburg
The original braking system of the M31
tram was a combination of a pneumatic
braking system on a motor chassis and a
hydraulic braking system on a conventio-
nal chassis. The main purpose of the mo-
dernisation was to supply a complete hyd-
raulic braking system for all chassis. The
modernised M31 trams consist of three
bogies, two motorised and one conventi-
onal. The motor chassis will be equipped
with dual circuit passive brake units and
the conventional chassis with an active
brake system. The M21 trams were pro-
duced in 1984-1992 as two-cell trams,
and the first upgrade to three-cell trams
with the designation M31 took place in
1998-2002.
"We are pleased to be involved in this
contract and to contribute to the safety
of the upgraded trams in Gothenburg.
The contract follows successful cooperati-
on with Škoda Ekova in the reconstruction
of the braking system on trams for Tallinn,
Estonia. In Gothenburg, this modified bra-
ke system will be used on a conventional
chassis, and we will develop a new brake
system for motor chassis due to the high
relative movements of the brake disc in
relation to the brake unit," says Zdeněk
Macháček, Business Development Mana-
ger at DAKO-CZ, adding: "This contract
is very important for us; it is the second
largest project in the supply of hydraulic
braking systems and the deliveries will last
until 2027."
During a complete modernisation after
more than 20 years of operation, the M31
trams in Gothenburg will be upgraded not
only with a new braking system but also,
for example, a new door system, including
a ramp at one of the links. An air-conditio-
ning unit will also be installed in the drive-
r's cab, the electrical system will be com-
pletely renovated, the floors will be
replaced and the interiors of the trains
modified. In particular, DAKO-CZ will
supply: the iRB 03.3 control system, the
newly developed M31 brake units, brake
discs and combined emergency brake
units, emergency brake units with safety
circuit, JA 52 active brake units, active
brake units and brake discs.
This year, the Třemošnice-based manu-
facturer is also cooperating with Škoda
Group on the supply of hydraulic brake
units including steering for the new 29T3
and 30T3 trams, which will be deployed in
Bratislava. In the field of tram transport, it
has also been supplying its braking sys-
tems to the Polish manufacturer Modet-
rans Poznan for years. It is completing an
order for this company this year for the
supply of electro-hydraulic braking sys-
tems for 49 low-floor 4-unit type LF 07 AC
trams to be deployed in Wroclaw, Poland,
and has won another interesting order for
the supply of single-unit double-car trams
with electromechanical brakes to the Ber-
lin district of Woltersdorf.
Further cooperation with Pragoimex is
on a tram project for Brno, where this ye-
ar a hydraulic brake system with the EVO
2 designation will be delivered for Drak
trams and an electromechanical brake for
negative temperatures down to –40 °C
with control will be used for the Latvian ci-
ty of Daugapils. p
www.DAKO-CZ.cz
TT ++ TT
Technika a trh 5/2023
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DAKO-CZ to supply braking
system for modernised trams
in Gothenburg
Hydraulic brake units including steering for a total of 80 modernised trams will be
delivered to Gothenburg, Sweden, in the coming years by DAKO-CZ, a member
of the Czechoslovak Group. The manufacturer of braking systems and components
for rolling stock from Třemošnice in east Bohemia will produce them in the coming years
for the trains to be modernised by the Škoda Group at its Škoda Ekova plant in Ostrava.
The price of the contract for the delivery of a completely new hydraulic braking system
amounts to nearly CZK 110 million.
rail transport
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