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Soft jaws DSTJ-DK12-400
Soft jaws DSTJ-DK12-400 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.
Soft jaws DSTJ-DK12-400
Description
Soft top jaws Ø 400 mm for DIN 6350 12-bolt chucks. Distributed in Italy by Krollit — official Bernardo distributor since 2007.
Logistics
Original spare parts available with 3–5 business days shipping. Customer support in Italian available.
Technical specifications
Technical specifications
Chuck size |
400 mm |
A |
140 mm |
B |
42 mm |
C |
64.5 mm |
d |
12.71 mm |
E |
34.4 mm |
F |
76.2 mm |
G |
19.04 mm |
h |
63 mm |
l |
6.3 mm |
J |
4 mm |
Bolt size |
M16 |
Warranty
Warranty terms and support procedures are available on the dedicated Krollit page.
View Krollit warranty termsFAQ / Frequently asked questions
Frequently asked questions
Soft top jaws Ø 400 mm — what distinguishes them from monoblock soft jaws?
Soft top jaws combine the bolt-on construction (hardened base body + replaceable soft top insert) with the unhardened mild steel insert. Compared to monoblock soft jaws: soft inserts are replaced separately when worn or when turned too much, without changing the base body. Compared to reversible hardened top jaws: soft inserts allow in-situ turning for maximum concentricity on delicate workpieces.
For Ø 400 mm — when is it necessary to turn (bore) soft inserts in situ?
In-situ boring of soft inserts is necessary whenever: new inserts are mounted, the chuck clamping pressure is changed, eccentricity is noticed in the workpiece. For machining parts requiring better concentricity than 0.05 mm, in-situ boring is essential — it reduces runout to the physically achievable minimum with the chuck in use.
Can soft inserts be reversed for internal/external gripping?
It depends on the model: DSTJ jaws have non-reversible soft inserts (internal grip only or external grip only); reversible STJ top jaws can have soft inserts mounted in both orientations. Check the specifications of the specific model. Customer support in Italian available.
Delivery times?
Original spare parts available with 3–5 business days shipping. Customer support in Italian available.
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