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Schwerka Construction Sets

Schwerka was a simple Meccano-like construction system. It was made in Germany from 1946-48

Manufacturer / Distributor

Grohag GmbH, Leipsig, GErmany & Neusladt near Coburg, Germany

Info from the Metal Constructional Systems Database for SCHWERKA

System Type
1946 to 1948 (see comment *1)
Aluminium (Alloy) (see comment *2)
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
26 (see comment *3)
Hole Pitch (Spacing) (mm)
Diameter of holes in Strips(mm)
4.1 (mean)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
--- (Screwed Rods or Bolts are used as axles.)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: round (slotted)
Material/Finish of Nuts and Bolts
Aluminium (Alloy) with a Aluminium (Alloy) finish
(see comment *4)
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

Data from a #1 set. Parts include Windmill Sail with 2x6 large holes. *1 Needs confirming. *2 Some steel parts in another #1 set, possibly by a different maker. *3 In #1 set. *4 Bolt plain steel.

The MCS document for this system is shown below. It can also be downloaded to your computer if desired here

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Below there are manuals/leaflets and photos which can be downloaded by clicking on the appropriate image.

A Schwerka manual
(Added 09/12/2018)

Various photos of the Schwerka construction system
(Added 09/12/2018)