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Double Guide Self-Centering Chuck
5 year warranty
DUO-DUX, the double guide self-centering manual chuck 100% Made in Italy.
It is made with double guided integral jaws, which can stand heavier charges and grant a better stability. The crown is ground with a special way studied by Gerardi to grant highest precision and repeatability.
Every DUO-DUX chuck is balanced following the ISO3089/74 rules and supplied with the warranty and testing certificates.
The chucks with diameter 365 and 430mm, suitable for heavy-duty machinings, keep the same technical features and precision of the chucks with lower diameters.
- HIGHEST RIGIDITY
- IRON CAST BODY
- JAWS OPENING Ø160 – Ø430
- MADE IN ITALY
FEATURES
High-strength cast iron body milled and ground made in 1 solid piece.
This range of jaws is used for clamping from the outside in and are ideal for clamping larger round parts. They are made of case-hardened and fully ground Ni-Cr steel to ensure high precision and repeatability.
Jaws ideal for clamping from the inside out and ideal for clamping cylinders. They are made of case-hardened and fully ground Ni-Cr steel to ensure high precision and repeatability.

ACCURACY
±0,02mm

CAST IRON BODY GJL
250
FEATURES
The special feature of these 3 jaws is that they can be machined according to the customer’s needs and the part to be machined.
The double guided integral jaws can stand heavier charges and grant a better stability. Thery are made of hardened nichel-chrome steel for the highest accuracy and repeatability.
In addition to the diameters in the standard range, a special version is available with Ø270 and increased bar passage Ø105 is available.
How to use it
Some clamping applications
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