Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40S
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40S 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-ACQ40X40S
The AirTAC B02-ACQ40X40S is a double-acting JIS compact cylinder engineered for welding-line automation. The B02- prefix designates this as a welding-industry dedicated variant of the standard ACQ40X40S, meaning it shares the exact same physical specifications—delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa—while being targeted at fixturing and clamping in robotic weld cells. Its short C-clip and riveted body design drastically reduces axial footprint compared to traditional round-body cylinders, saving valuable machine depth.
This 40 mm bore unit features a 16 mm piston rod, a PT1/8 port, and a default female M8x1.25 rod-end thread. Because it includes the S option, a built-in piston magnet allows for position sensing using AirTAC reed or electronic switches mounted in the body grooves. Stopping is handled by a fixed NBR elastomer bumper at each end, which absorbs end-stop energy but is not a field-adjustable air cushion.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40S Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40S |
|---|---|
| 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-ACQ40X40S
| 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-ACQ40X40S Is Used
Robotic Spot Welding Clamp
Drives the moving electrode arm in a robotic spot welding gun, utilizing the 628.3 N extend force to forge the steel panels while the compact body minimizes interference in tight cell spaces.
Weld Fixture Locating Pin
Actuates locating pins on a multi-station welding jig, pushing parts into exact position before the MIG welding torch fires, relying on the 16 mm rod for rigid lateral support.
Assembly Line Part Ejection
Ejects finished welded sub-assemblies from the fixture onto a downstream conveyor, using the 40 mm stroke and the S magnet to confirm ejection via a solid-state switch.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X40S the Right Cylinder?
When sizing this model, consider stepping down to the 32 mm bore for lighter clamping (402.1 N push at 0.5 MPa) or up to the 50 mm bore for heavier weldment holding (981.8 N push at 0.5 MPa). For your current build, verify the 40 mm stroke, PT1/8 port, and the female M8x1.25 rod thread fit your tooling. Note that a plain compact cylinder like this does not hold its load if air pressure is lost or the valve is centered; the rod will drift. For fail-safe position holding in a robotic welding cell, add 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-ACQ40X40S FAQ
This 40 mm bore cylinder provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The maximum standard stroke for this bore is 100 mm, with this specific model utilizing a 40 mm stroke.
The B02- prefix simply indicates this is AirTAC's welding-industry dedicated line of the ACQ40X40S; mechanically, it is identical to the base cylinder. It does not have adjustable air cushions—stopping is controlled by a fixed NBR elastomer bumper at each end, so for high-speed approaches, external shock absorbers are recommended.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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