For 34 years, we have been operating as a Czech repairer of rotating and non-rotating machines for the rail industry.

What services do we offer?

We provide repair services for Czech and international carriers, ensuring high-quality service and comprehensive after-sales support.

How does the repair process work?

We provide repairs efficiently and are able to flexibly adapt to the specific needs of traction applications.

Would you like to see examples of our work?

Please let us know by email zakazky@navijarna-hmf.cz or just give us a call at +420 417 564 456. We will contact you to finalize the details.

What can we repair or produce for you?

Services

We repair

DC traction motors with a power rating of up to 1 MW

Model designations:

AL 4542 FiR
AD 3745 iP 4 AD 3745 iP
AL 4446 iP 1 AL 4446 iP
AL 4846 zT 2 AL 4846 zT 3 AL 4846 zT 4 AL 4846 zT 5 AL 4846 zT 6 AL 4846 zT 7 AL 4846 zT 8 AL 4846 zT 9 AL 4846 zT
AD 4346 gT 1 AD 4346 gT 2 3 4 AD 4346 gT
AL 4846 eT
AD 3946 aT 1 AD 3946 aT
AL 4741 FlT
AL 4542 FnT
AL 4442 nP
AD 3643 eP
TE 004
TE 005
TE 006
TE 015
TE 028
TE 051
MT 4934-6
TIS3238f2M

Can't find your device? No problem — just contact us and we'll work out the repair details together.

trolleybus traction motors

Model designations:

9 AL 2943 rN
1 ALS 2741 EN

Can't find your device? No problem — just contact us and we'll work out the repair details together.

auxiliary traction motors

Model designations:

A9c4 - 009
A 11 a 4
6 A 1731/4 7 A 1731/4 10 A 1731/4 11 A 1731/4
1 A 2132/4
A 2135/4 1 A 2135/4 2 A 2135/4 6 A 2135/4 7 A 2135/4 8 A 2135/4
A 2220/4yT
A 2236/4
1 A 2422/2
A 2629/2xZ 1 A 2629/2 xZ 3 A 2629/2 4 A 2629/2 5 A 2629/2
2 A 2732/4 2 AU 2732/4
1 A 2839/4
A 2934/4 4 A 2934/4 5 A 2934/4 7 A 2934/4
A 3432/4 2 A 3432/4 11 A 3432/4
BD 521/6
D 1615/4
D 1619/4
ED 107

Can't find your device? No problem — just contact us and we'll work out the repair details together.

traction generators

Model designations:

TD 805
TD 802 C
TD 804 B

Can't find your device? No problem — just contact us and we'll work out the repair details together.

traction alternators

Model designations:

TA 403
TA 604
TA 611 W04
TA 612 W01
TA 614 W01
TA 624 W01

Can't find your device? No problem — just contact us and we'll work out the repair details together.

dynamo starters, dynamo generators

Model designations:

D 206P
D 207A D 207C
D 212
D 218A
DT 701-706
DT 736-4 (DYT 1 DYT)
BD 521/6
02-9098.02

Can't find your device? No problem — just contact us and we'll work out the repair details together.

DC motors with a power rating of up to 500 kW

We repair devices from the manufacturers listed below, as well as others. Contact us to let us know which device you need repaired.

Manufacturers:

Siemens
ABB
Bauműller
Lenze

transformers

Model designations:

HS 1521 Transformer
ELH 6363/48 Transformer

Can't find your device? No problem — just contact us and we'll work out the repair details together.

synchronous generators with a capacity of up to 500 kW

We repair devices from the manufacturers listed below, as well as others. Contact us to let us know which device you need repaired.

Manufacturers:

Siemens
ABB
Bauműller
Lenze

Asynchronous motors and generators with a power rating of up to 600 kW

Model designations:

BD 521/6
SGS 028C04O

Can't find your device? No problem — just contact us and we'll work out the repair details together.

6 kV asynchronous motors with a power rating of up to 500 kW

Model designations:

MLU 4245K/6
5ML 4144K/6
MTA-6/550

Can't find your device? No problem — just contact us and we'll work out the repair details together.

traction reactors

Model designations:

1TLV250-135
AN-CLVH 2736-19
Filtration 1 TLV 250-135
SMA 68-550510
CV 34/39
CLVH 40-3g
1TLF 700/700A
CLV 1280-2a smoothing Eh 103382/I
TLVS 70/36,5 3kV,150A smoothing
TL 1 SZ 62/23,5
CLVH 10-0m
TLVS 35/42,5 0,35mH 200A commutation
ALCV 3448/37 vehicle traction Eh 6440P (shunt)
CLVH 150-2f
smoothing CLVH 18,5-0q Eh 8708 P
2 CLVH 40-3q smoothing Eh 6673P
smoothing CLV 30-2x Eh 3078 Z
smoothing 1 CLVH 5752 traction Eh 8381P
smoothing CLVH 550-2ww Eh 3071 Z
TLVS 56,6/51,2 3kV,10mH 150A filtration
TLVS 34,6/63,5 3kV,9mH,75A shunt
1 CLVH 360-2b vehicle traction
5TL Lo 000454 (reactor)

Can't find your device? No problem — just contact us and we'll work out the repair details together.

We produce

Coils for traction machines with a package length of up to 1250 mm

We produce coils based on the customer's technical documentation and can adapt to current needs.

Would you like to have coils made for your motors? Contact us.

compensating winding

We produce compensation windings based on the customer's technical documentation and can adapt to current needs.

Would you like to have compensation windings made for your motors? Contact us.

We ensure the quality of our services

The company’s quality management system is certified in accordance with the ISO 9001:2015 standard. We also hold a supplier qualification certificate from České dráhy a.s. In addition, we hold certificates for specific technical activities such as welding and defectoscopy.

Certificate ISO 9001:2015
Certificate ISO 9001:2015
České dráhy, a.s.: Supplier Qualification Certificate
České dráhy, a.s.: Supplier Qualification Certificate
Certificate of Liability Insurance
Certificate of Liability Insurance

Certificates for performing welding

Welding Certificate in accordance with ČSN EN ISO 3834-2:2022
Welding Certificate in accordance with ČSN EN ISO 3834-2:2022
Welding Certificate in accordance with ČSN EN 15085-2:2001
Welding Certificate in accordance with ČSN EN 15085-2:2001
Welding certificate in accordance with ČD Regulation V95/5
Welding certificate in accordance with ČD Regulation V95/5

Certificates for defectoscopy

Certificate of Non-Destructive Testing in accordance with ČSN EN ISO 9712:2022
Certificate of Non-Destructive Testing in accordance with ČSN EN ISO 9712:2022

References

Reference projects

About us

We specialize in the repair of rotating machines and other specialized electrical equipment, with a strong focus on traction motors for the rail industry. Our many years of experience repairing traction motors operated under demanding conditions represent a key area of our expertise.

Over years of operation, we have succeeded in building a stable and technically advanced company capable of reliably meeting market demands in the field of traction machine repairs. Our professional foundation, consisting of an experienced and well-coordinated team of employees, allows us to respond flexibly to the specific technical and operational requirements of our customers.

The company’s smaller organizational structure provides a high degree of flexibility compared to the competition and allows us to effectively adapt the scope and technology of repairs to the specific needs of traction applications. The experience we have gained is reflected in the company’s long-term stability and prosperity.

We continue the legacy of our founder, Jan Komárek, and build on the tradition of the original company, Jan Komárek – HMF Elektromotory.

Contact

Štúrova 479/15
Trnovany
415 01 Teplice

ID: 

VAT ID: 

Contact persons

Ivana Komárková

owner

Tomáš Abraham

chief executive officer (CEO)

Bc. Lukáš Strouhal

chief operating officer (COO)

Luboš Litera

production manager

Daniel Haftstein

inventory management, procurement

Marek Jerke

head of mechanics