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SJ-PS4-400 Soft One-Piece Jaws
SJ-PS4-400 Soft One-Piece Jaws is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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
Ø 400 mm soft monolithic jaws for PS type 4-jaw chucks. Krollit has been an official Bernardo distributor in Italy since 2007.
Logistics
Original spare parts available with 3–5 business days shipping. Customer support available in Italian.
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 termsFAQ / Frequently asked questions
Frequently Asked Questions
Ø 400 mm soft monolithic jaws — 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, the soft jaws must be turned (bored) in situ on the chuck to compensate for assembly tolerances and obtain maximum concentricity — a soft jaw turned in situ surpasses any standard hardened jaw in precision.
Are these Ø 400 mm jaws 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 purchase. The Ø 400 mm diameter indicates the chuck size for which the jaws are designed. Also, check the number of fixing 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 internal gripping or external gripping versions — check the type before purchasing.
Delivery times?
Original spare parts available with 3–5 business days shipping. Customer support available in Italian.
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Product safety
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