Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 90mm 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.
- BoreØ40 mm
- Stroke90 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- ConfigurationStandard compact
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB
The B02-ACQ40X90SB is a double-acting JIS compact cylinder built on AirTAC's standard ACQ40X90SB platform, delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The B02- prefix designates this as a welding-industry dedicated variant, mechanically identical to the base model, making it ideal for clamping and fixturing in automated welding cells.
This 40 mm bore unit features a 90 mm stroke and a space-saving C-clip and riveted body design that minimizes axial footprint compared to round-body alternatives. It includes a built-in piston magnet (-S) for position sensing and a male-thread piston rod end (-B, M14x1.5) for direct load coupling. End-of-travel deceleration relies on a fixed NBR elastomer bumper rather than an adjustable air cushion.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 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).
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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).
Where the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB Is Used
Spot Welding Gun Clamping
Provides 628.3 N of extend force at 0.5 MPa to position and hold upper weld gun arms against sheet metal assemblies prior to the weld cycle.
Robot Cell Part Fixturing
Utilizes the 90 mm stroke to push locating pins into stamped automotive brackets, securing the component for robotic MIG welding.
Assembly Line Ejection
Pushes finished welded subframes out of the fixture using the male M14x1.5 threaded rod end to attach a custom contact pad.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB the Right Cylinder?
For sizing context, stepping down to a 32 mm bore yields 402.1 N push at 0.5 MPa, while stepping up to a 50 mm bore provides 981.8 N. This 40 mm model strikes a middle ground for moderate welding fixture loads. Note that a plain compact cylinder like this will drift and cannot hold a load if air pressure is lost or the valve is centered; achieving a fail-safe hold in a welding cell requires an external rod lock or pilot-operated check valve. When ordering, confirm the 90 mm stroke, PT1/8 port, S magnet for reed or electronic switches, and B male rod thread.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X90SB FAQ
At 0.5 MPa, the push force is 628.3 N and the pull force is 527.8 N. At 0.7 MPa, the push force is 879.6 N. The maximum push force is 128 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a speed of 30-500 mm/s.
The B02- prefix indicates this is a welding-industry dedicated variant of the standard ACQ40X90SB, sharing the exact same physical specs. It uses a fixed NBR elastomer bumper at each end for deceleration, not an adjustable air cushion; for high-energy welding automation, consider adding external shock absorbers.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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