Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75B
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75B is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 75mm 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
- Stroke75 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-ACQ40X75B
The B02-ACQ40X75B is a double-acting JIS compact cylinder delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The leading B02- prefix designates this as a welding-industry dedicated variant of the standard ACQ40X75B, mechanically identical and built for fixturing or clamping within automated welding cells. Its short C-clip and riveted body design drastically reduces axial mounting depth compared to traditional round-body units, saving valuable machine footprint.
This specific unit features a 75 mm stroke and a male-thread piston rod end (M14x1.5) that couples directly to your tooling. The 40 mm bore uses a PT1/8 port and relies on a fixed NBR elastomer bumper at each end to absorb end stops. Because it lacks an adjustable air cushion, operators should slow the approach or utilize external shock absorbers for high-energy welding cycle impacts. The body includes magnetic-switch grooves, though this particular SKU ships without the internal magnet.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75B Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75B |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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-ACQ40X75B
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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-ACQ40X75B Is Used
Spot Welding Gun Clamping
Provides 628.3 N of extend force at 0.5 MPa to actuate the lower arm of a robotic spot welding gun, securely holding sheet metal panels prior to the weld cycle.
Weldment Fixturing Stations
Utilizes the 75 mm stroke to push locating pins into position on a multi-station welding jig, locking tubular frames in place for automated MIG welding robots.
Parts Transfer Ejection
Ejects finished welded sub-assemblies from the cell using the male M14x1.5 rod thread to attach a custom pusher plate, cycling at speeds up to 500 mm/s.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75B the Right Cylinder?
When sizing this 40 mm bore model, stepping down to a 32 mm bore reduces the 0.5 MPa push output to 402.1 N, while stepping up to a 50 mm bore increases it to 981.8 N. This B02-ACQ40X75B configuration includes the male M14x1.5 rod thread, a 75 mm stroke, and PT1/8 ports. If position feedback is required for your welding fixture, you must specify the -S option to include the internal magnet for AirTAC reed or electronic switches.
Note that a standard compact cylinder will not hold its load if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end. For fail-safe holding of heavy welding assemblies, incorporate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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-ACQ40X75B 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, proof pressure is 1.5 MPa, and the operating speed is 30-500 mm/s.
The B02- prefix simply indicates this is a welding-industry dedicated variant of the ACQ40X75B; mechanically, it shares the exact same physical specs. It does not have adjustable air cushions. Instead, it uses a fixed NBR elastomer bumper at each end to absorb impact. For high-speed welding automation, you may need external shock absorbers.
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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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