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Bernardo  |  SKU: 21-2010F

PO4-160 4-Jaw Precision Chuck

€791,83 (22% VAT incl.)
Business solution up to 30 installments

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

Features

Design:

  • Chuck with four precision scroll jaws
  • With centering according to DIN 6350
  • Steel version for higher speeds and longer service life
  • Includes 1 set of scroll and boring jaws

Area of application:

  • Suitable for lathes and grinders
  • For use on machines with higher concentricity

Standard accessories:

  • 1 set of scroll jaws IJ-PS
  • 1 set of boring jaws OJ-PS

Technical specifications

Chuck size A

160

B

68 mm

C

4 mm

d

125 mm

E

42 mm

F

140 mm

G

M10

h

70 mm

J

32 mm

Max. speed

4500 rpm

Weight approx.

10 kg

Logistics

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

Frequently Asked Questions

PO4 4-jaw chuck Ø 160 mm — when to choose it over the PO3 3-jaw chuck?

The PO4 4-jaw chuck is necessary for square, rectangular, asymmetrical or irregular workpieces that cannot be centered with the PO3's 3 jaws. The 4 jaws are independently adjustable — each jaw moves separately to adapt to any shape. Centering takes longer (3–5 minutes with a dial indicator) than with the self-centering PO3, but the achievable precision is higher: <0.01 mm with a dial indicator. The PO3 is faster; the PO4 is more versatile.

Standard DIN 6350 connection — how is the chuck mounted?

The DIN 6350 flange connection is mounted by tightening the fastening screws evenly in a cross pattern. It takes 5–10 minutes to mount. The angular position is fixed — the chuck should not be removed frequently with this connection.

The included jaws — can they be reversed for external gripping?

The included kit contains scroll jaws (external grip) and boring jaws (internal grip). For gripping strong workpieces from the inside, boring jaws are used; for standard external gripping, scroll jaws are used. The PO4 jaws are not reversible — they are replaced with the appropriate type depending on the operation. Customer support in Italian available.

Delivery times?

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

Product safety

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