Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50S 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 ACQJ32X250-50S
The ACQJ32X250-50S is a double-acting, single-rod JIS compact cylinder built for long-stroke, made-to-order applications requiring on-the-fly extend-position tuning. It features a 32mm bore and a 250mm full stroke, which exceeds the 100mm standard maximum for this bore size. An external M12x1.25 threaded stop with a lock nut lets you limit the extend end position, providing a usable extend range of 200-250mm. The retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 402.1N push at 0.5MPa. The unit includes a -S piston magnet compatible with reed or solid-state switches, and relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50S |
|---|---|
| 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 ACQJ32X250-50S
| 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 ACQJ32X250-50S Is Used
Product Changeover Stops
Quickly dial in a new extended probe position on a machining fixture when swapping part families, using the external lock nut to set the exact 200-250mm reach.
Sorting Diverter Arms
Fine-tune the actuation endpoint of a package pusher on a packaging line to accommodate varying box widths without swapping the entire cylinder body.
Trial End Positions
Establish optimal clamping reach on an automated assembly press by threading the stop in or out, preventing overtravel during initial machine setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50S the Right Cylinder?
Choosing this 32mm bore yields 402.1N push and 301.6N pull at 0.5MPa. Stepping down to a 25mm bore drops push to 245.4N, while a 40mm bore raises push to 628.3N. If your extend length never varies, a fixed-stroke ACQ suffices. When ordering, confirm the 250mm full stroke, the 50mm adjuster window, the -S magnet, and the default female M8x1.25 rod-end thread.
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 ACQJ32X250-50S FAQ
This long-stroke model has a 32mm bore, 250mm full stroke, and a 50mm adjustable window, giving a usable extend range of 200-250mm. It generates 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa.
The external M12x1.25 threaded stop with lock nut limits the extend length only; force remains identical to a standard ACQ because the piston area is unchanged. The retract stroke is unaffected. A plain ACQ-type does not hold its load on air loss, so for fail-safe holding use an external rod lock or pilot-operated check valve. The fixed NBR bumper decelerates near stroke end.
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1-Year Warranty
Covers non-human-caused product damage.
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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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