
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.
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.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40B |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up 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).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 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.
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-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).
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.
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.
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.
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
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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