BK320SQ-4 | 320 mm 4-Jaw Solid Pneumatic Chuck

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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.

BK320SQ-4 | 320 mm 4-Jaw Solid Pneumatic Chuck product image

The TOP-TOOL BK320SQ-4 is a 320 mm 4-jaw solid pneumatic chuck for air-operated workholding applications that require four-point gripping.

This pneumatic chuck uses a solid body and four-jaw clamping structure. Select the model according to the workpiece shape, gripping range, air pressure and machining load.

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 BK320SQ-4
D 325
D1 270
D2 290
D3 50
H 177
H1 116
h 5
Gmax K 29
p 32
Z × d 6-M12
Power Wedge Serration 1.5×60°
Matching Jaw Model BK320Z2-60
Jaw Stroke t (Diameter, mm) 8.5
Max. Clamping Force (kN) 116.6
Max. Expanding Force (kN) 78.3
Allowable Pressure (MPa) 0.4–0.8
Max. Speed (r/min) 2300
Clamping Range (mm) 10–350
Expanding Range (mm) 40–360
Net Weight (kg) 73

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.