
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X20SB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø32mm bore and 20mm 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-ACQ32X20SB 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 base ACQ32X20SB, meaning it shares the exact same physical specifications—delivering 402.1 N push and 301.6 N pull at 0.5 MPa—while being tailored for fixturing and clamping in robotic weld cells. Its short C-clip and riveted body construction drastically reduces axial footprint compared to round-body alternatives.
This specific configuration includes an integrated piston magnet (-S) for position detection and a male-thread piston rod (-B). The M14x1.5 male rod end couples directly to tooling, while the hard-anodized 32 mm bore operates on a PT1/8 port. Instead of an adjustable air cushion, it relies on a fixed NBR elastomer bumper at each end to absorb end-of-stroke impacts. For high-energy welding automation cycles, consider adding an external shock absorber to slow the approach.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X20SB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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. |
| ×20 | 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).
Drives the lower arm of a robotic spot weld gun, utilizing the 20 mm stroke and 402.1 N push force to position copper tips precisely against automotive sheet metal panels.
Secures tubular frames in a dedicated weld fixture, where the male M14x1.5 rod threads directly into a custom clamp arm and the compact body saves valuable tooling space.
Actuates indexing gates within a welding cell conveyor, relying on the -S magnet and a solid-state electronic switch to confirm gate open/close status to the PLC.
When sizing this 32 mm bore cylinder, stepping down to a 25 mm bore yields 245.4 N push at 0.5 MPa, whereas stepping up to a 40 mm bore provides 628.3 N push. This 32 mm option sits in a versatile mid-range, delivering a maximum push of 82 kgf at 1.0 MPa. Keep in mind that a standard ACQ body does not hold its position if air pressure drops or the valve is centered; the rod will drift. For fail-safe load holding in a vertical welding clamp, an external rod lock or pilot-operated check valve is required. To order, confirm the 20 mm stroke, PT1/8 port, built-in magnet, and male M14x1.5 rod thread.
Quick checklist
At 0.5 MPa, this 32 mm bore cylinder provides 402.1 N of push (extend) force and 301.6 N of pull (retract) force. At 0.7 MPa, the push force increases to 562.9 N. The maximum push force is 82 kgf at the 1.0 MPa operating pressure limit. It operates at speeds between 30-500 mm/s.
The B02- prefix simply indicates this is a welding-industry dedicated variant of the standard ACQ32X20SB; mechanically, the dimensions, seals, and materials are identical to the base model. It does not have adjustable air cushions. Instead, it uses fixed NBR elastomer bumpers at both stroke ends to absorb impact, so for high-speed welding automation, you may need external shock absorption.
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