
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X45S is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø32mm bore and 45mm 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 AirTAC B02-ACQ32X45S is a double-acting, single-rod JIS compact cylinder engineered for welding-line automation. The leading "B02-" prefix designates this as a welding-industry dedicated variant of the standard ACQ32X45S, meaning it is mechanically identical to the base model but targeted at fixturing and clamping in robot welding cells. It delivers a robust 402.1 N push force at 0.5 MPa, utilizing a hard-anodized 32 mm bore and a 16 mm piston rod.
This thin body design uses a C-clip and riveted piston-to-rod joint to minimize axial footprint, fitting easily into tight machine spaces. Because this unit includes the -S option, it features a built-in piston magnet compatible with AirTAC reed or electronic switches via the peripheral body grooves. End-stopping is handled by a fixed NBR elastomer bumper, which absorbs impact without requiring field adjustment.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X45S |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø32 mm |
| Stroke | 45 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. |
| ×45 | 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 heavy steel brackets in automated spot welding cells, using its 402.1 N push force to hold parts firmly against fixture locators while the welding gun operates.
Drives the electrode arm forward during automated tip dressing and exchange procedures, where the 45 mm stroke provides exact travel for the grinding cutter.
Actuates sliding gates on welding transfer lines, moving completed assemblies to the next station while keeping the overall machine frame shallow.
When sizing this 32 mm bore actuator, consider stepping down to the 25 mm bore for lighter loads, which yields 245.4 N push at 0.5 MPa, or stepping up to the 40 mm bore for heavier fixturing, providing 628.3 N push at 0.5 MPa. This model features a 45 mm stroke, a PT1/8 port, and a default female rod-end thread (M8x1.25). The included -S magnet enables position sensing.
Note that a plain compact cylinder like this 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 a welding fixture, an external rod lock or pilot-operated check valve is required. The fixed NBR bumper only decelerates the piston near the stroke end and does not act as a brake.
Quick checklist
This 32 mm bore cylinder provides 402.1 N push and 301.6 N pull at 0.5 MPa, and 562.9 N push at 0.7 MPa. The maximum push force is 82 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
The B02- prefix simply marks this as the welding-industry dedicated variant of the ACQ32X45S; it shares the exact same physical specs, seals, and materials as the base model. It does not have adjustable air cushions; instead, it uses a fixed NBR elastomer bumper at each end to absorb the stop. For high-speed welding automation, you may need to add an external shock absorber.
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