Germany · Stade · 1977/78
227 m
Tower height
Elbe crossing near Stade
The world’s tallest overhead line towers of their time – erected with a ZECK SPW 5 puller.
Stringing equipment for overhead lines, railways and ropeways – Stringing the
energy transition.
ZECK designs and manufactures machines for building and maintaining overhead lines, catenaries, ropeways, underground cables and antennas. Family-run from Scheßlitz – founded in 1918, stringing technology since 1966.
Catalogue 2026Trusted by
Our machines
Machines for every section of the line.
Overhead lines
Stringing machines, drum stands and reel stands for overhead line construction.
Pulling & tensioning
Drums & reels
Railway
Installation units on railway wagons or road-rail trucks.
Ropeway
Pulling and tensioning in one machine.
Accessories
For work directly on the conductor.
Machines in action
From overhead lines
to ropeways.
Watch our stringing machines at work: puller-tensioners, pullers and drum winches in overhead line construction, on railway catenaries and in ropeway construction.
Keep scrolling – the film follows your pace.
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Overhead line construction
Four conductors.
One pull.
On the tension side, the puller-tensioner keeps four conductors under even tension, so they run clear of the ground over the stringing blocks from tower to tower.
Stringing blocks on the tower
Puller-tensioners in the catalogueElectric drum winches
Cable pulling.
Battery-powered.
Two battery-electric drum winches: the eST 140 with 15 kN and the eST 280 with 32 kN of pulling force, with zero local emissions in operation.
Electric drum winches in the cataloguePulling side
Four conductors.
One pulling rope.
The running board connects four conductors to the pulling rope. This draws them through the stringing blocks together.
Running board
Running boards in the cataloguePullers
Pulling power
for stringing.
At the far end, the puller draws the pulling rope and the four conductors through the stringing blocks, tower by tower.
Pullers in the catalogueRail technology
Installing catenary
with precision.
ZECK has built catenary installation units since 1996, in use in the Gotthard Base Tunnel in 2013/14.
Explore rail technologyRopeway construction
Pulling ropes.
Connecting stations.
At the valley station, the ropeway puller-tensioner installs the ropes of new installations.
Ropeway puller-tensioner in the catalogueWherever lines are built, every pull has to be right. Line builders have relied on that since 1966 – with machines from Scheßlitz.
References
Where ZECK equipment works.
Switzerland · 2013/14
57 km
Tunnel length
Gotthard Base Tunnel
Catenary for the world’s longest railway tunnel – installed with the ZECK BM 954 installation unit.
Norway · since 2008
5,500 m
Span
Fjord crossings in Norway
Stringing across fjords with spans of up to 5,500 m – with machines that come apart and are flown onto the mountains by helicopter.
In action.
Overhead line construction in Norway 
B 1500/12×2 tensioner in overhead line construction 
RW WB 1800/18 ropeway puller-tensioner 
BM 984 catenary installation unit
Archive · Staff at the Oberend premises, Scheßlitz (post-war period, before 1953)
Origin
Family-run.
In the third generation.
Michael Zeck founded a metalworking business in Scheßlitz. It grew into a manufacturer of stringing technology: the first mobile winch-brake was built in 1972/73. Since 1993 the family business has worked in its own plant in Scheßlitz-Burgellern.
- Founded
- 1918
- Family business from Scheßlitz
- Employees
- 250
- at the Scheßlitz headquarters
- As of 10/2026 · ZECK GmbH
- Machines delivered
- 13,000+
- As of 10/2026 · ZECK Group
- Countries supplied
- 115+
- As of 10/2026 · ZECK Group
In use worldwide.
Here when you need us.
From Scheßlitz to the world. Explore our locations and connect directly with our service and spare parts team.
Partners: Sherman + Reilly, Inc. (United States); GW Lifting & Engineering Supplies (South Africa); Shanghai K.J International Trade Co.,Ltd. (China / Taiwan); Shanghai K.J International Trade Co.,Ltd. (China / Taiwan)
ZECK GmbH
Service & spare parts.
Technical support & spare parts
Help with technical questions, maintenance and spare parts.
+49 9542 9494-82224/7 emergency service
Help with machine faults, around the clock.
+49 9542 9494-99Service Point Wolfenbüttel
Service site of the ZECK Group in Wolfenbüttel, since 2019.
Rental Park
Rent stringing machines and road-rail equipment – checked in our own service workshop, transport on request.
ZECK Connect
Remote diagnostics for pullers, tensioners and puller-tensioners of the V007 generation: machine data, maintenance and geofencing via app and portal.
Transport & pickup
Pickup of service and rental machines at the plant, Columba-Schonath-Str. 8.
Careers & Academy
Careers
24 open positions
Help build tomorrow’s grid.
No energy transition without power lines – and no power lines without stringing equipment. In Scheßlitz and Wolfenbüttel we develop, build and service machines for more than 115 countries: in a family business, without shift or weekend work, with apprenticeships and flexible working hours.
Visit careers
Training
ZECK Academy
Operator training for ZECK machines and the stringing module of the IHK certificate course ‘IHK-Fachkraft Freileitungsmonteur/-in’ (organised by IHK Erfurt).
Visit the AcademyCertificates & awards
Certified.
Award-winning.
Certificates
DIN EN ISO 9001:2015
TÜV Rheinland
valid until
EN 15085-2 CL1
TÜV SÜD
valid until
EN ISO 3834-2
TÜV SÜD
valid until
Awards
2024
Bayerischer Mittelstandspreis
Bayerns Best 50
2010 · 2012 · 2023
2021
TOP 100 Innovator
2013
Bayerischer Qualitätspreis
Crafts category
Enquiry
Let’s talk about your project.
Tell us about your project – via the enquiry form, by phone or by email.