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AirTAC ACQ Series · JIS Compact Cylinder

Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B

The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø32mm bore and 40mm stroke, PT1/8 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.

  • BoreØ32 mm
  • Stroke40 mm
  • Port sizePT1/8
  • Acting typeDouble acting
  • Rod threadM8×1.25 (F) / M14×1.5 (B)
  • ConfigurationStandard compact
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About the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B

The B02-ACQ32X40B is a double-acting JIS compact cylinder built for welding-line automation. The B02- prefix marks it as AirTAC's welding-industry dedicated variant of the standard ACQ32X40B, meaning it is mechanically identical to the base model but targeted at fixturing and robot welding cells. It delivers 402.1 N of push force and 301.6 N of pull force at 0.5 MPa.

This 32 mm bore unit features a short C-clip and riveted body that minimizes axial footprint where a round-body cylinder cannot fit. It comes with a male-thread (M14x1.5) piston rod end for direct load coupling, a 16 mm rod diameter, and PT1/8 ports. Instead of an adjustable air cushion, it relies on a fixed NBR elastomer bumper at each end to absorb the stop energy.

Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B Technical Specifications

ModelAirtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B
SeriesACQ JIS compact (thin) cylinder
Bore sizeØ32 mm
Stroke40 mm
Acting typeDouble acting
Port sizePT1/8
Rod end threadM8×1.25 female / M14×1.5 male (B)
FluidAir (filtered by 40µm element)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 500 mm/s
CushionBumper (both ends)
Max standard strokeUp to 100 mm

Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).

Theoretical Output Force (Ø32mm)

PressurePush forcePull force
0.5 MPa402 N302 N
0.7 MPa563 N—
Max (@1.0 MPa)82 kgf

Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.

Model Code: Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B

ACQJIS compact (thin) double-acting cylinder series.
32Bore size in mm.
×40Stroke length in mm.
SBuilt-in magnet for magnetic-switch position sensing (omit = no magnet).
BMale-thread piston rod (omit = female-thread rod).

Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).

Where the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B Is Used

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Robot Welding Cell Clamping

Secures mild steel brackets in a robotic MIG welding cell, using the male M14x1.5 rod end to thread directly into the clamping jaw for rapid fixture changes.

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Spot Welding Gun Actuation

Provides the 402.1 N extend force at 0.5 MPa needed to position lower spot welding arms on an automotive body-in-white assembly line.

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Weldment Indexing Station

Pushes completed tubular frames out of the weld zone, leveraging the short C-clip body to fit within the tight axial envelope of a transfer conveyor.

Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B the Right Cylinder?

When sizing this actuator, stepping down to a 25 mm bore yields 245.4 N push at 0.5 MPa, while stepping up to a 40 mm bore provides 628.3 N. Keep in mind that a plain ACQ body does not hold its position if air pressure drops or the valve is centered; the rod will drift, and the fixed bumper only decelerates it near the stroke end. For a fail-safe hold, an external rod lock or pilot-operated check valve is required.

To order correctly, confirm this exact configuration: 32 mm bore, 40 mm stroke, PT1/8 port, male M14x1.5 rod thread (B option), and no sensor magnet. The standard stroke limit for this bore is 100 mm, with long-stroke variants available up to 300 mm.

Quick checklist

  • ✓ Required force at your working pressure
  • ✓ Short-body depth vs. a round-body cylinder
  • ✓ Port/thread type (PT / G / NPT)
  • ✓ Magnet (S) for sensors?
  • ✓ Female (blank) or male (B) rod thread
  • ✓ Side load — avoid on a compact rod
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Installation & Maintenance Notes

  • check Use clean air filtered to 40µm or finer.
  • check Keep within 0.15 – 1.0 MPa operating pressure.
  • check Avoid side load on the short piston rod.
  • check Very long strokes are unsuitable for the compact body.
  • check Handle the C-clip carefully; seat it fully in its groove.
  • check Installation by qualified personnel per AirTAC docs.

Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B FAQ

This 32 mm bore double-acting cylinder provides 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. It operates on filtered air at 0.15-1.0 MPa, runs at 30-500 mm/s, and functions in -20 to +70 C temperatures.

The B02- prefix simply designates this as the welding-industry dedicated variant of the ACQ32X40B; it shares the exact same physical specs and materials as the base model. It does not have adjustable air cushions; it uses a fixed NBR elastomer bumper at each end. For high-speed welding applications, you should slow the approach or add an external shock absorber.

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Related AirTAC ACQ Compact Cylinders

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