Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40B
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40B is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm 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.
- BoreØ40 mm
- Stroke40 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-ACQ40X40B
The B02-ACQ40X40B is a double-acting JIS compact cylinder built for welding-line automation. The leading B02- prefix marks this as AirTAC's welding-industry dedicated variant of the base ACQ40X40B; mechanically, it shares the exact same specifications, delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its short C-clip and riveted body construction drastically reduces axial length compared to round-body alternatives, saving valuable mounting depth in tight robotic cells.
This specific unit features a male-thread piston rod end (M14x1.5) for direct load coupling, alongside a 16 mm rod diameter and a PT1/8 port. Instead of an adjustable air cushion, it relies on a fixed NBR elastomer bumper at each end to absorb the end stop. The body includes grooves for magnetic switches, though this particular SKU ships without the internal magnet.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40B Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40B |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 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).
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-ACQ40X40B
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | 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).
Where the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40B Is Used
Spot Welding Gun Clamping
Provides reliable 628.3 N clamping force at 0.5 MPa to hold steel panels in a robotic spot welding gun before the electrodes fire.
Weldment Fixturing
Secures tubular frames on a welding table; the male M14x1.5 rod threads directly into the fixture arm to maintain part alignment during MIG welding.
Assembly Cell Ejection
Pushes completed welded sub-assemblies out of a robotic cell onto a downstream conveyor, utilizing the 40 mm stroke to clear the work zone.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40B the Right Cylinder?
When sizing this 40 mm bore actuator, consider stepping down to the 32 mm bore if your fixturing requires less force (it provides 402.1 N push at 0.5 MPa), or moving up to the 50 mm bore for heavier weldment clamping (delivering 981.8 N push at 0.5 MPa). The maximum standard stroke for this bore size is 100 mm, with extended ranges available up to 300 mm. Confirm your ordering essentials: 40 mm bore, 40 mm stroke, PT1/8 port, male M14x1.5 rod thread, and no sensor magnet.
Keep in mind that a standard compact cylinder like this does not hold its position if air pressure is lost or the valve is centered; the rod will drift, and the fixed NBR bumper only decelerates the piston near the stroke end. For fail-safe load holding on a vertical weld fixture, you must integrate an external rod lock or a pilot-operated check valve.
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-ACQ40X40B 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. It operates between 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
The B02- prefix simply denotes AirTAC's welding-industry dedicated line; mechanically, it is identical to the standard ACQ40X40B with no special seals or coatings. It uses a fixed NBR elastomer bumper at each end to absorb end stops, which is not field-adjustable. For high-speed or high-energy loads, add an external shock absorber or slow the approach.
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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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