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CoroChuck® 930

Pull-out security

With the best pull-out security on the market, this chuck is designed to eliminate vibration for excellent stability and accessibility in all milling and drilling operations.

Easy handling

Based on a hydraulic tool-clamping system, CoroChuck® 930 can be quickly tightened or released with an optimized torque wrench, improving efficiency through quick and easy setups and changes. No external equipment is required to clamp or unclamp the system.

High precision

The chuck holds tolerances within microns to improve tool precision, surface finish and productivity. Precision run-out can be measured at <4 μm (157 μinch) at 2.5 × DC.

View More Features
  • The machine-side coupling is ground as the last operation to guarantee the highest demands on precision
  • High-precision repetition
  • Available in pencil, slender and heavy duty design. A short version with minimum length for swing diameter clearance in turning centers with driven tool holders is also available
  • Balancing according to ISO 16084
  • Clamping length can be adjusted with an adjustment screw

Find your tool and buy

Application area

  • Hydraulic chuck for milling, drilling and reaming operations where precision, easy handling and high pull-out security are required
  • Available for the most common machine interfaces
  • Use in machine tools with rotating spindles, such as multi-task machines and machining centers, as well as driven tools in turning centers and vertical turning lathes

Bore size

Chuck type

CoroChuck 930 – ISO taper CoroChuck 930 – ISO taper CoroChuck 930 – Slender-T CoroChuck 930 – ISO Taper HD
Pencil Slender Slender/T* HD
mm6
8
10
12
20
25
32
inch1

*T = Turning, length optimized, segment clamping only.

Product range

Coromant Capto®

CoroChuck® 930 version:

​Heavy duty, Slender, Pencil, Turning

Coupling size:

C3–C10

Bore size:

6, 8, 10, 12, 20, 25, 32 mm
1, 1¼ inch

HSK-A/C/F

CoroChuck® 930 version:

Heavy duty, Slender, Pencil

Coupling size:

40, 50, 63, 80, 100

Bore size:

6, 8, 10, 12, 20, 25, 32 mm
1¼ inch

ISO/ISO BIG-PLUS®

CoroChuck® 930 version:

Heavy duty, Slender, Pencil

Coupling size:

40, 50

Bore size:

6, 8, 10, 12, 20, 25, 32 mm

CAT-V/CAT-V BIG-PLUS®

CoroChuck® 930 version:

Heavy duty, Slender, Pencil

Coupling size:

40, 50

Bore size:

6, 8, 10, 12, 20, 25, 32 mm
1, 1¼ inch

MAS-BT/MAS BT BIG-PLUS®

CoroChuck® 930 version:

Heavy duty, Slender, Pencil

Coupling size:

30, 40, 50

Bore size:

6, 8, 10, 12, 20, 25, 32 mm

Customized tools

It is possible to customize your CoroChuck® 930 chuck to fit your specific component.

View TailorMade offer

Collets

Available with precision coolant through grooves on the inside of the sleeve, ensuring that the coolant reaches the cutting edge even at a high number of revolutions per minute.

*Trademark information: BIG-PLUS® is a trademark owned by BIG Daishowa Seiki Co., Ltd.​


Fulcrum technology

​​​

The secret behind the high precision and pull-out security of CoroChuck® 930 is the clamping mechanism, designed with fulcrum technology. A thin, brazed membrane with optimized clamping design expands to create two distinct clamping points on each side. This results in a consistently repeated clamping force, providing the best possible pull-out resistance and damping performance.

This design ensures excellent torque transmission to improve the performance of solid carbide end mills, drills and reaming tools. Performance is repeated over multiple clamping cycles to retain high-quality component surfaces and extend tool life.

Fulcrum Technology  
 

Highlights

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CoroChuck™ 930 in action

CoroChuck™ 930 offers the best pull-out security on the market due to the latest fulcrum technology used for uppermost clamping performance with high clamping force.

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Collet with 100% pull-out security

When producing expensive end products and machining with challenging cutting data, choose a collet with a mechanical locking interface, giving maximum pull-out prevention for Weldon shanks.

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Productive machining

See how using CoroChuck™ 930 can take your machining productivity to new levels.

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