BK400SQ | 400 mm 3-Jaw Solid Pneumatic Chuck

The TOP-TOOL BK400SQ is a 400 mm 3-jaw solid pneumatic chuck for repeatable air-operated clamping of round workpieces.

The three-jaw self-centering structure is suitable for general pneumatic chuck applications where a solid body and repeatable clamping cycle are required.

Key Features

  • Air-operated clamping for repeatable loading and unloading cycles.
  • Solid chuck body for applications that do not require a through-hole.
  • Multiple chuck sizes available for different workpiece ranges.
  • Technical parameters are provided for model selection.

Typical Applications

  • Pneumatic workholding setups
  • Repeat loading and unloading operations
  • Machining applications requiring air-operated clamping
  • Model selection based on chuck size, gripping range and installation method

Selection Notes

  • Confirm the workpiece dimensions and required gripping range.
  • Check whether a solid, semi-through-hole or through-hole structure is required.
  • Review the allowable air pressure, jaw stroke, clamping force and maximum speed.
  • Send the machine information and workpiece drawing for technical review before ordering.

Technical Specifications

Model BK400SQ
D 400
D1 340
D2 368
d 60
H 212
H1 141
h 6
Gmax K 33
Z × d 6-M16
Power Wedge Serration 1.5×60°
Matching Jaw Model
Jaw Stroke t (Diameter, mm) 11.5
Max. Clamping Force (kN) 158.2
Max. Expanding Force (kN) 102.9
Allowable Pressure (MPa) 0.4–0.8
Max. Speed (r/min) 1000
Clamping Range (mm) 15–420
Expanding Range (mm) 50–430
Net Weight (kg) 128

Request a Quote

This product is supplied by quotation. Send your machine model, workpiece drawing, required clamping method and quantity so that the configuration can be reviewed before ordering.

Made with care

Heirloom quality

Premium materials

Classic styling

Request a Quote

Contact Technical Support

Pricing and configuration depend on the required chuck size, mounting interface, and application. Submit your requirements and our team will review the details before providing a quotation.

Styled With

BK400SQ | 400 mm 3-Jaw Solid Pneumatic Chuck product image

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