Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X50SB
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X50SB is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 50mm 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
- Stroke50 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-ACQ40X50SB
The B02-ACQ40X50SB is a double-acting JIS compact cylinder engineered for welding-line automation. The leading "B02-" prefix designates this as AirTAC's welding-industry dedicated variant of the standard ACQ40X50SB, meaning it shares the exact same physical specs—bore, stroke, and force—while being targeted at fixturing and robot welding cells. It delivers a robust 628.3 N push force at 0.5 MPa, utilizing a short C-clip and riveted body design that drastically reduces axial footprint compared to conventional round-body units.
This specific configuration includes an integrated piston magnet (-S) for position sensing alongside a male-thread piston rod (-B, M14x1.5) that couples directly to your tooling. The 40 mm bore uses a PT1/8 port and relies on fixed NBR elastomer bumpers at both ends to absorb end-stop energy. Because these bumpers are not adjustable, operators should reduce approach speed or utilize external shock absorbers for high-mass welding fixtures.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X50SB Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X50SB |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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-ACQ40X50SB
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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-ACQ40X50SB Is Used
Robot Welding Cell Clamping
Secures heavy steel assemblies in robotic MIG welding stations, utilizing the 628.3 N push force to hold parts firmly against locators while maintaining a low-profile footprint.
Spot Welding Gun Actuation
Drives the moving electrode in automated spot welding guns, where the 50 mm stroke and male M14x1.5 rod end provide direct, rigid coupling to the welding tip holder.
Weld Fixture Indexing
Positions and locks multi-station welding indexing tables, relying on the integrated magnet (-S) to trigger AirTAC electronic sensors for precise cycle timing.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X50SB the Right Cylinder?
When sizing this 40 mm bore actuator, note that it generates 628.3 N of push force at 0.5 MPa. If your welding fixture requires less clamping force, stepping down to the 32 mm bore yields 402.1 N push, saving valuable space. Conversely, if you need more rigidity, the 50 mm bore provides 981.8 N push. Remember that a standard compact cylinder like this drifts when air pressure is lost or the valve is centered; the fixed NBR bumper only decelerates the rod near the stroke end, so an external rod lock or pilot-operated check valve is required for fail-safe load holding.
To order, confirm your essentials: 40 mm bore, 50 mm stroke, PT1/8 port, the built-in magnet (-S) for AirTAC reed or electronic switches, and the male M14x1.5 rod thread (-B). Operating speed spans 30-500 mm/s across a 0.15-1.0 MPa pressure range.
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-ACQ40X50SB 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 50 mm stroke is well within the 100 mm maximum standard stroke for this bore, though long-stroke variants up to 300 mm are available.
The B02- prefix simply marks this as the welding-industry dedicated variant of the ACQ40X50SB; it is mechanically identical to the base model with no special seals or coatings. It uses fixed NBR elastomer bumpers at both ends, which are not field-adjustable. For high-energy welding loads, you should slow the approach speed or add external shock absorbers.
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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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