Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X45S
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X45S is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 45mm 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
- Stroke45 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-ACQ40X45S
The AirTAC B02-ACQ40X45S is a double-acting, single-rod JIS compact cylinder engineered with a 40 mm bore and 45 mm stroke. The leading "B02-" prefix designates this as a welding-industry dedicated variant of the standard ACQ40X45S, meaning it is mechanically identical to the base model but targeted at welding-line automation. It delivers a robust 628.3 N of push force and 527.8 N of pull force at 0.5 MPa, making it well-suited for fixturing and clamping tasks within robotic welding cells.
The short C-clip and riveted body design drastically reduces axial mounting depth compared to traditional round-body cylinders, saving valuable machine footprint. This 40 mm bore features a 16 mm piston rod, a PT1/8 port, and a fixed NBR elastomer bumper at each end to absorb end-stop impact—note this is not an adjustable air cushion. Equipped with the -S option, the piston includes a built-in magnet for position sensing via AirTAC reed or electronic switches mounted in the body grooves.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X45S Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X45S |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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-ACQ40X45S
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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-ACQ40X45S Is Used
Robot Welding Cell Clamping
Secures mild steel brackets in a robotic MIG welding cell, utilizing the 628.3 N push force at 0.5 MPa to hold parts firmly against locators while maintaining a compact footprint near the torch.
Spot Weld Gun Actuation
Drives the lower arm of a resistance spot weld gun on an automotive assembly line, where the 45 mm stroke provides the precise travel needed to pinch and form sheet metal panels.
Weldment Transfer Ejection
Ejects completed tubular frames from a welding jig after the arc process finishes, using the 527.8 N retract pull force at 0.5 MPa to swiftly clear the part for the next cycle.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X45S the Right Cylinder?
When sizing this cylinder, consider stepping to the next bore down (32 mm, offering 402.1 N push at 0.5 MPa) for lighter clamping loads, or moving up to the 50 mm bore (providing 981.8 N push at 0.5 MPa) if your welding fixture demands greater holding power. The standard maximum stroke for this 40 mm bore is 100 mm, with long-stroke options available up to 300 mm for extended reach requirements.
Keep in mind that a plain compact cylinder like this does not hold its position or load if air pressure is lost or the valve is centered; the rod will drift. For fail-safe load holding in critical vertical welding fixtures, an external rod lock or pilot-operated check valve is required. To order, confirm your requirements for the 40 mm bore, 45 mm stroke, PT1/8 port, female M8x1.25 rod-end thread, and the -S magnet option.
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-ACQ40X45S FAQ
This 40 mm bore cylinder provides a push (extend) force of 628.3 N and a pull (retract) force of 527.8 N at 0.5 MPa. At 0.7 MPa, the push force increases to 879.6 N, with a maximum push capacity of 128 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
The B02- prefix simply indicates this is a welding-industry dedicated variant of the ACQ40X45S; mechanically, it shares the exact same physical specs, seals, and dimensions as the base model. It does not have adjustable air cushions; instead, it uses a fixed NBR elastomer bumper at each end to absorb impact. For high-speed or high-energy welding applications, you should add an external shock absorber or slow the approach speed.
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1-Year Warranty
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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