Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-40
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-40 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 ACQJ32X250-40
The ACQJ32X250-40 is a double-acting JIS compact cylinder built for applications requiring a 250 mm stroke with on-machine end-position tuning. An external M12x1.25 threaded stop and lock nut limits the extend travel, providing a usable forward range of 210 to 250 mm. The retract stroke remains completely unaffected by this adjustment. As a long-stroke made-to-order variant, it exceeds the standard 100 mm maximum for this 32 mm bore size while retaining the compact body profile.
Because the adjuster solely restricts forward travel length, the internal piston area stays the same. Consequently, output force is identical to a standard ACQ of this bore, delivering 402.1 N of push and 301.6 N of pull at 0.5 MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion, and the body features magnetic-switch grooves for adding sensors later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-40 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-40 |
|---|---|
| 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 ACQJ32X250-40
| 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 ACQJ32X250-40 Is Used
Machining Center Changeovers
Dial in the extend stop from 210 to 250 mm during CNC fixture swaps without machining new spacer blocks.
Packaging Line Diverter
Tune the pusher rod end position on-site to handle varying carton depths on a packaging conveyor.
Palletizing Probe
Adjust the sensing probe extension on a palletizing station to clear different pallet load heights.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-40 the Right Cylinder?
Selecting this 32 mm bore unit involves sizing against its neighbors: a 25 mm bore provides 245.4 N push at 0.5 MPa, while stepping up to a 40 mm bore yields 628.3 N. If the exact 250 mm forward reach is never modified, a fixed-stroke ACQ cylinder suffices. When ordering this adjustable variant, confirm the 250 mm full stroke, the 40 mm window, the female M8x1.25 rod-end thread, and the PT1/8 port. Note that this configuration ships without a magnet.
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 ACQJ32X250-40 FAQ
This cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a push of 562.9 N at 0.7 MPa and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 210 to 250 mm, achieved via a 40 mm adjustment window on a 250 mm full stroke.
The external M12x1.25 threaded stop with lock nut physically limits forward travel without altering piston area, so force remains identical to a standard ACQ. Deceleration relies on a fixed elastomer bumper, not an adjustable air cushion. A plain cylinder does not hold its load on air loss, so use an external rod lock for fail-safe holding.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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