
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X10 is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 10mm 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.
The B02-ACQ40X10 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 AirTAC's welding-industry dedicated variant of the standard ACQ40X10, mechanically identical to the base model and built for fixturing or clamping within automated welding cells. Its short C-clip and riveted body construction drastically reduces axial length compared to round-body alternatives, saving valuable mounting depth in tight robotic station footprints.
This 40 mm bore unit features a 16 mm piston rod and a female M8x1.25 rod-end thread. Because it operates at high cycling speeds (30-500 mm/s), the cylinder relies on a fixed NBR elastomer bumper at each end to absorb end-stop impact. This bumper is not field-adjustable, so external shock absorbers should be added for high-energy welding clamp approaches. The body includes magnetic-switch grooves, though this specific SKU ships without the internal magnet.
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X10 |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 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).
| 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.
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×10 | 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).
Provides 628.3 N of extend force at 0.5 MPa to hold sheet metal panels firmly in place during robotic spot welding, ensuring panel alignment without gap interference.
Acts as a short-stroke (10 mm) locating pin actuator in multi-station welding lines, retracting just enough to clear the part for robotic transfer to the next cell.
Pushes welded sub-assemblies out of the fixture using its 527.8 N retract force, clearing the station quickly for the next production cycle at speeds up to 500 mm/s.
When sizing this actuator, stepping down to the 32 mm bore yields 402.1 N of push force at 0.5 MPa, while stepping up to the 50 mm bore provides 981.8 N. The 40 mm bore hits a practical middle ground for moderate-duty weld clamping. Note that a standard ACQ body does not hold its position if air pressure is lost or the valve is centered; the rod will drift, and the fixed bumper only decelerates it near the stroke end. For fail-safe holding of a heavy fixture, an external rod lock or pilot-operated check valve is required.
To order, confirm the essentials for this SKU: 40 mm bore, 10 mm stroke, PT1/8 port, female rod-end thread (M8x1.25), and no sensor magnet. If position feedback is needed for the welding controller, select the -S option to include the magnet for AirTAC reed or electronic switches.
Quick checklist
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. It operates between 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and has a maximum standard stroke of 100 mm.
The B02- prefix simply marks this as the welding-industry dedicated variant of the ACQ40X10; it is mechanically identical to the base model with no special seals or dimensions. It uses fixed NBR elastomer bumpers at each end rather than adjustable air cushions, so for high-energy welding approaches you should slow the cycle or add external shock absorbers.
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