BROCHURE - DUODUX Self-Centering Chucks

Product catalog summary

Product Overview

The DUO-DUX is a 100% Made in Italy manual self-centering chuck featuring a double guide system. It is designed with integral double-guided jaws that support higher workloads and provide enhanced stability. The crown is precision-ground using a proprietary method developed by Gerardi to ensure high accuracy and repeatability. Each chuck is individually balanced according to ISO 3089/74 standards and supplied with testing and warranty certificates. Larger diameter models (365mm and 430mm) maintain the same precision and technical features as smaller sizes, making them suitable for heavy-duty machining.

Key Features and Benefits

Double Guide System: Provides superior rigidity and stability under heavy loads compared to single guide chucks.
Material and Construction: Integral jaws made from hardened nickel-chrome steel, cemented, tempered, and ground for precision and durability.
Precision and Balance: Crown grinding method ensures high repeatability; balanced per ISO 3089/74.
Warranty: 5-year warranty on the entire DUO-DUX range, reflecting confidence in product reliability and quality.
Range: Available in diameters from 160mm up to 430mm, including a special 270mm version with an enlarged bar passage of 105mm.

Technical Specifications

The chucks are available in various sizes with detailed parameters including maximum torque (daN), maximum RPM, weight, and jaw opening ranges. For example:

Ø160mm chuck: Max torque 3,100 daN, max RPM 3,600, weight 8 kg.
Ø250mm chuck: Max torque 4,600 daN, max RPM 2,500, weight 23 kg.
Ø430mm chuck: Max torque 6,900 daN, max RPM 1,400, weight 92 kg.

Jaw opening ranges are specified for both internal and external clamping jaws, with multiple jaw sets (3, 6, or 9 jaws) available depending on the chuck size.

Jaw and Spare Parts Availability

Integral jaws and spare parts are available for both single and double guide versions. Machineable jaws are offered for internal and external clamping, with codes provided for easy ordering. Base jaws and jaw nuts are also listed for all chuck sizes.

Adapter Plates

Semi-finished adapter plates are available for mounting the chucks, fully finished on the machine side and machinable on the chuck side. Various shank sizes and codes are provided to match different chuck diameters and machine interfaces, including Camlock (DIN55029) and through-hole versions.

Recommendations and Best Practices

Use the double guide DUO-DUX chucks for applications requiring high rigidity and stability, especially in heavy-duty machining.
Ensure proper balancing and certification compliance by using the supplied testing certificates.
Select jaw sets (internal or external) based on the specific clamping requirements of the workpiece.
Refer to the jaw opening ranges and maximum RPM limits to avoid overloading or damaging the chuck.
Utilize the 5-year warranty as assurance of product quality and longevity.

Contact and Manufacturer Information

Manufacturer: GERARDI SPA, Lonate Pozzolo (VA), Italy.
Contact: Tel +39.0331.303911, Fax +39.0331.301534
Website: www.gerardi.it
Email: [email protected]

Catalog excerpts

BROCHURE - DUODUX Self-Centering Chucks-1

AUTOCENTRANTI DOPPIA GUIDA / DOUBLE GUIDE SELF CENTERING CHUCKS IRON CAST BODY HIGHEST RIGIDITY PRECISIONE, RIGIDITÀ & STABILITÀ ANCHE IN LAVORAZIONI GRAVOSE ACCURACY, RIGIDITY & STABILITY ALSO DURING HEAVY DUTY MACHINING IL DOPPIA GUIDA ITALIANO THE ITALIAN DOUBLE GUIDE 100% MADE IN ITALY DUO-DUX, il mandrino autocentrante manuale a doppia guida 100% Made in Italy. Composto da griffe integrali a guida doppia in grado di sopportare maggiori carichi di lavoro e garantire una maggior stabilità. La corona è rettificata con uno speciale metodo da noi sviluppato atto a garantire elevata precisione e ripetibilità. Ogni autocentrante DUO-DUX viene equilibrato secondo la norma ISO3089/74, testato singolarmente e fornito di apposito certificato di collaudo e garanzia. Gli autocentranti di diametro 365 e 430mm, indicati per lavorazioni pesanti, conservano al contempo le stesse doti tecniche di precisione dei mandrini di minor diametro. 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 diamet

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BROCHURE - DUODUX Self-Centering Chucks-2

GAMMA DI AUTOCENTRANTI MANUAL! DOPPIA GUIDA RANGE OF DUODUX MANUAL DOUBLE GUIDE SELF-CENTERING CHUCKS GUIDA SINGOLA - SINGLE GUIDEDOPPIA GUIDA - DOUBLE GUIDEDOPPIA GUIDA - DOUBLE GUIDE 0160 3+3+3 FYesa Interna Internal Clamp 3+3+3 Fresa Interna Internal Clamp Fresa Esterna External Clamp APERTURE GRIFFE MAX AND MINIMUM JAWS OPENING STANDARD EQUIPMENT

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BROCHURE - DUODUX Self-Centering Chucks-3

GAMMA Dl AUTOCENTRANTI MANUALI DOPPIA GUIDA RANGE OF DUODUX MANUAL DOUBLE GUIDE SELF-CENTERING CHUCKS DOPPIA GUIDA - DOUBLE GUIDE 3+3 DOPPIA GUIDA - DOUBLE GUIDE 3+3 DOPPIA GUIDA - DOUBLE GUIDE 3+3+3 Presa interna Internal Clamp 3+3+3 Ftesa Interna Internal Clamp 3+3+3 * Presa Interna Internal Clamp KgCode 44GDD-310-3G30 KgCode 71GDD-365-3G30 KgCode 103GDD-430-3G30 GRIFFE DISPONIBILI E PARTI DI RICAMBIO AVAILABLE JAWS AND SPARE PARTS Griffe integrali, presa Interna Integral Jaws Internal clamp Griffe integrali, presa Esterna Integral Jaws External clamp Griffe riportate Machineble Code Jaws SINGOLA...

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BROCHURE - DUODUX Self-Centering Chucks-4

FLANGE SEMI-FINITE PER AUTOCENTRANTI ADAPTER PLATE SEMI-FINISHED FOR SELF CENTERING CHUCKS 0105 Versione speciale 0270-105Special model 0270-105 Oltre ai diametri della gamma standard e disponibile una versione speciale con 0270 e pas-saggio barra maggiorato 0105. Not only standard dimensions: a special 0270mm version with increased bar holder 0105 is available too. Con vite prigioniera e dado Stud bolt and nut DIN55022 (55027) Dimensione Riferimento Cono Autocentrante Shank Size Reference Con fori passantiWith through holes DIN55026 ASA B 5.9 tipo A2 Dimensione Riferimento Cono Autocentrante...

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