Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X35B
The AirTAC Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X35B is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 35mm 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
- Stroke35 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-ACQ40X35B
The AirTAC B02-ACQ40X35B is a double-acting JIS compact cylinder engineered for welding-line automation. The B02- prefix marks this as a welding-industry dedicated variant of the standard ACQ40X35B, meaning it is mechanically identical to the base model while targeting fixture and spot welding cells. It delivers a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa.
This unit features a male M14x1.5 piston rod end that couples directly to your load, a 16 mm rod diameter, and a PT1/8 port. The short C-clip and riveted body design drastically reduces axial mounting depth compared to round-body alternatives. End-of-stroke energy is managed by fixed NBR elastomer bumpers rather than adjustable air cushions, so high-speed approaches may require external shock absorption.
Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X35B Technical Specifications
| Model | Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X35B |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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-ACQ40X35B
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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-ACQ40X35B Is Used
Spot Welding Gun Clamping
Utilizes the 628.3 N extend force to firmly position and hold upper electrode arms in robotic spot welding guns before the weld current fires.
Welding Fixture Positioning
Indexes small structural brackets into the exact weld location within automated fabrication cells using the 35 mm stroke and male M14x1.5 rod connection.
Assembly Line Ejection
Pushes welded sub-assemblies out of the fixture onto the downstream conveyor, relying on the compact body to fit within tight machine footprints.
Is the Airtac B02-ACQ Ultra-Thin Welding Special Cylinder B02-ACQ40X35B the Right Cylinder?
When sizing this 40 mm bore actuator, consider stepping down to the 32 mm bore if your load requires only 402.1 N of push force at 0.5 MPa, or stepping up to the 50 mm bore if you need 981.8 N to handle heavier tooling. This model ships with a male-thread rod end (M14x1.5) and lacks a sensor magnet, though the body retains switch grooves for future reed or electronic sensor integration.
Because this is a standard double-acting cylinder, it will not hold its position if air pressure is lost or the valve is centered—the piston will drift. For fail-safe load holding in vertical welding clamp applications, an external rod lock or 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-ACQ40X35B FAQ
At 0.5 MPa, this double-acting 40 mm bore cylinder provides 628.3 N of push force and 527.8 N of pull force. At 0.7 MPa, the push force increases to 879.6 N. The maximum push force is 128 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, runs at speeds of 30-500 mm/s, and has a maximum standard stroke of 100 mm.
The B02- prefix simply designates this unit as AirTAC's welding-industry dedicated line of the ACQ40X35B; it shares the exact same physical specs, seals, and materials as the base model. It uses fixed NBR elastomer bumpers at both ends to absorb end stops, which are not field-adjustable. If your welding cycle runs at high speeds or high kinetic energy, 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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