Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke250 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B
The AirTAC ACQJ32X250-75B is a double-acting, JIS compact cylinder configured for specialized long-stroke applications. It provides a full 250mm stroke, operating as a made-to-order variant since it exceeds the standard 100mm maximum for a 32mm bore. An external M12x1.25 threaded stop and lock nut restricts forward travel, yielding a usable extend range of 175 to 250mm. The return stroke remains completely unaffected.
Output force mirrors a standard ACQ of this size, delivering 402.1N push and 301.6N pull at 0.5MPa, because the adjuster alters travel length only. This unit includes a male M14x1.5 piston rod end for direct coupling. It relies on fixed NBR elastomer bumpers for end-of-stroke deceleration rather than adjustable pneumatic cushions. While sensor grooves are integrated into the body, this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 250 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| 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 |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B Is Used
Diverging Fixture Calibration
Dial in exact extend endpoints from 175 to 250mm on machining centers when swapping out production fixtures.
Variable Length Diverter
Modify the pusher extension distance on packaging lines to accommodate cartons of varying depths.
Prototype Positioning
Establish optimal trial stop points for testing assembly probes without machining custom spacer rings.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B the Right Cylinder?
For sizing context, stepping down to a 25mm bore yields 245.4N push, while moving up to a 40mm bore provides 628.3N push at 0.5MPa. If your setup never requires altering the end position, a fixed-stroke ACQ cylinder is sufficient. When ordering, verify the 32mm bore, 250mm full stroke, 75mm adjuster window, the male rod thread, and confirm that no internal magnet is required.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75B FAQ
At 0.5MPa it generates 402.1N push and 301.6N pull; at 0.7MPa push is 562.9N. Maximum push is 82kgf at 1.0MPa. The full stroke is 250mm, and the external stop allows the extend length to be shortened within a 175-250mm usable range.
The external M12x1.25 threaded stop limits extension distance without changing the piston area, so force remains identical to a standard ACQ. Fixed NBR elastomer bumpers absorb end-impact energy. Because it lacks a magnet and a rod lock, the cylinder will drift if air pressure is lost; use an external lock for fail-safe holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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