Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75 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-ACQ40X75
The B02-ACQ40X75 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 standard ACQ40X75, meaning it is mechanically identical to the base model but designated for spot and robot welding cells. It delivers a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa.
The short C-clip and riveted body design saves axial mounting depth compared to round-body cylinders, fitting neatly into tight fixture spaces. This 40mm bore unit uses a 16mm piston rod and an M8x1.25 female rod-end thread. It relies on a fixed NBR elastomer bumper at each end to absorb end stops, which is not field-adjustable, so high-energy cycles may require slowing the approach or adding an external shock absorber.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75 Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75 |
|---|---|
| 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-ACQ40X75
| 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-ACQ40X75 Is Used
Robot Welding Cell Clamping
Secures mild steel brackets in a robot welding cell, providing 628.3 N of extend force to hold parts firmly against the locators while the torch completes the seam.
Spot Weld Gun Actuation
Drives the lower arm of a resistance spot weld gun on an automotive line, utilizing the 75mm stroke to clear the upper tip during part loading and unloading.
Fixture Indexing Gate
Operates a sliding safety gate on a multi-station welding fixture, moving the guard 75mm to isolate the weld zone during the high-current cycle.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X75 the Right Cylinder?
When sizing this model, stepping down to the 32mm bore reduces the 0.5 MPa push force to 402.1 N, while stepping up to the 50mm bore increases it to 981.8 N. To verify your ordering essentials for this cylinder: confirm the 40mm bore, 75mm stroke, PT1/8 port, and the default female rod thread. This specific SKU ships without a sensor magnet, though the body retains the grooves for adding reed or electronic switches later.
Because a plain compact cylinder does not hold its position if air pressure is lost or the valve is centered, the rod will drift. For a fail-safe hold in a welding fixture, an external rod lock or a pilot-operated check valve is required.
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-ACQ40X75 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. The operating pressure range is 0.15-1.0 MPa, and the speed range is 30-500 mm/s.
The B02- prefix indicates this is AirTAC's welding-industry dedicated variant of the ACQ40X75, sharing the exact same physical specs as the base model. Instead of an adjustable air cushion, it uses a fixed NBR elastomer bumper at each end to decelerate the piston, which cannot be tuned in the field.
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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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