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Bernardo | SKU: 21-3207

SJ-PS3-400 Soft One-Piece Jaws

Name: SJ-PS3-400 Soft One-Piece Jaws
Brand: Bernardo
SKU: 21-3207
Price: 520.20 EUR
Availability: InStock

€520,20 (22% VAT incl.)

Delivery and Shipping

At Krollit, we guarantee a safe and reliable shipping process. Orders are handled with the utmost care and traceability until delivery.

For international shipments, please send your request via the dedicated contact form.

Upon delivery, always sign the delivery note with the words “subject to inspection” to allow for proper handling of any irregularities or discrepancies in the product.

Our goal is to ensure you receive prompt service and a worry-free shopping experience.

Description

Soft monolithic jaws Ø 400 mm for 3-jaw chucks type PS. Distributed in Italy by Krollit — official Bernardo distributor since 2007.

Logistics

Original spare parts available with 3–5 working days shipping. Customer support in Italian available.

Technical specifications

technical specifications

Chuck size	400 mm
A	145 mm
B	36 mm
C	92 mm
d	15 mm
E	14 mm

Warranty

Warranty terms and support procedures are available on the dedicated Krollit page.

View Krollit warranty terms

FAQ / Frequently asked questions

Frequently asked questions

Soft monolithic jaws Ø 400 mm — when are they used instead of hardened jaws?

Soft jaws (made of unhardened mild steel) are used when the workpiece cannot be scratched or deformed by the jaw — finished surfaces, soft materials (aluminum, copper, plastic), thin-walled parts. Before use, soft jaws must be turned (bored) in situ on the chuck to compensate for mounting tolerances and achieve maximum concentricity — a soft jaw turned in situ surpasses any standard hardened jaw in precision.

Are these jaws for Ø 400 mm compatible with my chuck?

PS3/PS4 jaws are designed for 3 or 4-jaw chucks with PS-type mounting — check compatibility with your chuck before purchasing. The Ø 400 mm diameter indicates the chuck size for which the jaws are designed. Also check the number of mounting bolts on your chuck.

Can monolithic jaws be reversed for external gripping?

No — monolithic jaws are not reversible. For external gripping (clamping from the outside of the workpiece), reversible top jaws from the TJ or DTJ series are needed. Monolithic jaws are only available in versions for internal gripping or only for external gripping — check the type before purchasing.

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