Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X25
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X25 is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Γ40mm bore and 25mm 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.
- BoreΓ40 mm
- Stroke25 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM8Γ1.25 (F) / M14Γ1.5 (B)
- ConfigurationStandard compact
- No minimum order. A single piece can be ordered.
- Ready in 3β5 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-ACQ40X25
The B02-ACQ40X25 is a double-acting single-rod JIS compact cylinder built for welding-line automation. The leading "B02-" prefix designates this as AirTAC's welding-industry dedicated variant, mechanically identical to the standard ACQ40X25. It delivers a robust 628.3 N push and 527.8 N pull force at 0.5 MPa, utilizing a 16 mm piston rod and a PT1/8 port.
A short C-clip and riveted piston-to-rod construction minimize overall axial length, saving valuable mounting depth in tight robotic weld cells. Deceleration at stroke ends relies on a fixed NBR elastomer bumper rather than an adjustable air cushion. This model ships without a sensor magnet, though the body retains magnetic-switch grooves for future position-sensing upgrades.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X25 Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X25 |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Γ40 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8Γ1.25 female / M14Γ1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 β 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 β 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 (Γ40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | β |
| 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-ACQ40X25
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| Γ25 | 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-ACQ40X25 Is Used
Spot Weld Gun Clamping
Provides the 628.3 N clamping thrust needed to hold steel panels together securely during robotic spot welding operations.
Welding Fixture Positioning
Uses its 25 mm stroke to push locating pins into place, indexing heavy structural frames accurately before the arc starts.
Robot Cell Part Ejection
Cycles quickly at 30-500 mm/s to eject finished welded assemblies from the cell, keeping automated production flowing.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X25 the Right Cylinder?
When sizing this 40 mm bore actuator, consider stepping down to the 32 mm bore for lighter loads, which provides 402.1 N push at 0.5 MPa. If your fixturing demands greater clamping power, the 50 mm bore offers 981.8 N push at 0.5 MPa. This specific SKU features a 25 mm stroke, a female M8x1.25 rod-end thread, and no internal magnet.
Because this is a standard double-acting cylinder, it will not hold a load if air pressure drops or the valve is centeredβthe piston will drift. For fail-safe position holding in critical welding jigs, an external rod lock or pilot-operated check valve must be integrated into the pneumatic circuit.
Quick checklist
- β Required force at your working pressure
- β Short-body depth vs. a round-body cylinder
- β Port/thread type (PT / G / NPT)
- β Magnet (S) for sensors?
- β Female (blank) or male (B) rod thread
- β Side load β avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 β 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-ACQ40X25 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 port size is PT1/8.
The B02- prefix indicates this is AirTAC's welding-industry dedicated variant of the ACQ40X25, sharing identical mechanical specifications. It does not have an adjustable air cushion; instead, it uses a fixed NBR elastomer bumper at each end to absorb the impact. For high-energy welding ejection cycles, an external shock absorber may be required.
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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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