
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X70SB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø32mm bore and 70mm 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-ACQ32X70SB is a double-acting JIS compact cylinder where the B02- prefix designates it as AirTAC's welding-industry dedicated variant, mechanically identical to the standard ACQ32X70SB. It delivers 402.1 N of push force and 301.6 N of pull force at 0.5 MPa. The C-clip and riveted piston-to-rod assembly yield an exceptionally short body, minimizing axial footprint in tight robotic weld cells.
This unit includes a built-in piston magnet (-S) for position sensing with AirTAC reed or electronic switches, and a male M14x1.5 threaded rod end (-B) for direct load coupling. It features a 16 mm piston rod, a PT1/8 port, and relies on fixed NBR elastomer bumpers at both ends to absorb end-stop impact rather than an adjustable air cushion.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ32X70SB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 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. |
| ×70 | 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 moving arm of robotic spot welding guns where the short C-clip body saves axial depth and the 402.1 N push force securely positions the copper tips.
Holds steel stampings in jigs prior to robotic MIG welding, using the male M14x1.5 rod end for rigid mounting and the -S magnet to confirm clamp closure.
Pushes completed welded sub-assemblies out of the cell using the 70 mm stroke, relying on the fixed NBR bumper to soften the ejection impact at cycle end.
When sizing this 32 mm bore option, 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 push. Keep in mind that a plain compact cylinder drifts if air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke near the end and does not act as a lock. For fail-safe clamping in automated welding lines, integrate an external rod lock or pilot-operated check valve. To order, confirm the 32 mm bore, 70 mm stroke, PT1/8 port, male M14x1.5 rod thread, and the required magnetic switches.
Quick checklist
This 32 mm bore 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. The 70 mm stroke falls within the 100 mm standard stroke limit for this bore, though long-stroke variants up to 300 mm exist.
The B02- prefix indicates this is AirTAC's welding-industry dedicated line, sharing the exact physical specs of the base ACQ32X70SB without any special seals or coatings. It uses fixed NBR elastomer bumpers at the stroke ends, not field-adjustable air cushions, so high-energy welding automation may need external shock absorbers.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.