
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40S 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-ACQ32X40S is a double-acting, single-rod JIS compact cylinder engineered for welding-line automation. The leading "B02-" prefix designates this as AirTAC's welding-industry dedicated variant of the standard ACQ32X40S, meaning it shares the exact same physical specifications while being targeted at spot welding cells and clamping fixtures. It delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa.
The short C-clip and riveted body design drastically reduces axial mounting depth compared to traditional round-body cylinders, which is critical when fitting multiple actuators into a dense robotic weld fixture. The 32 mm bore utilizes a 16 mm piston rod and a PT1/8 port. Because this model includes the -S option, it features a built-in piston magnet compatible with AirTAC reed or electronic switches mounted in the body grooves.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X40S |
|---|---|
| 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).
Utilizes the 402.1 N extend force to firmly position and clamp sheet metal panels against locators in robotic spot welding guns before the electrodes fire.
Employs the compact C-clip body to minimize axial footprint inside multi-axis weld fixtures, allowing tight clearance for moving tooling around complex assemblies.
Uses the 301.6 N retract force to pull finished welded sub-assemblies clear of the station, relying on the -S magnet to trigger a solid-state switch for part confirmation.
When sizing this actuator, consider stepping down to the 25 mm bore (providing 245.4 N push at 0.5 MPa) for lighter clamping loads, or moving up to the 40 mm bore (yielding 628.3 N push at 0.5 MPa) if your fixture requires greater rigidity. The standard 40 mm stroke falls well within the 100 mm maximum standard stroke for this bore, though a long-stroke range up to 300 mm is available if deeper reach is needed.
Remember that a plain compact cylinder does not hold its position if air pressure is lost or the valve is centered; the rod will drift. For fail-safe load holding in vertical welding jigs, an external rod lock or pilot-operated check valve is required. To order, confirm the 32 mm bore, 40 mm stroke, PT1/8 port, female M8x1.25 rod end, and the -S magnet option.
Quick checklist
At 0.5 MPa, the push force is 402.1 N and the pull force is 301.6 N. At 0.7 MPa, the push force increases to 562.9 N. The maximum push force is 82 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with an operating speed of 30-500 mm/s and a temperature range of -20 to +70 C.
The B02- prefix simply indicates this is the welding-industry dedicated variant of the ACQ32X40S; mechanically, it is identical to the base model. It does not have adjustable air cushions. Instead, it relies on a fixed NBR elastomer bumper at each end to absorb the impact. For high-speed or high-energy cycling in welding automation, you should add an external shock absorber or slow the approach speed.
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