Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30S 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 ACQJ32X250-30S
The ACQJ32X250-30S is a double-acting JIS compact cylinder built for applications requiring a long, made-to-order 250mm stroke that exceeds the standard 100mm maximum for a 32mm bore. An external M12x1.25 threaded stop and lock nut limits the extend end position, allowing you to fine-tune the usable extend range from 220mm up to the full 250mm directly on the machine without swapping parts. The retract stroke remains completely unaffected.
Because the adjuster only alters travel length and not the piston area, the output force is identical to a standard ACQ of this size. You get 402.1N push and 301.6N pull at 0.5 MPa. The -S option includes a built-in piston magnet compatible with reed or electronic solid-state switches, and the body uses fixed NBR elastomer bumpers at each end rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30S |
|---|---|
| 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 ACQJ32X250-30S
| 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 ACQJ32X250-30S Is Used
Machining Center Changeover
Dial in the extend stop from 220 to 250mm when swapping part fixtures on a CNC loading station, ensuring the pusher meets varying raw material lengths precisely.
Packaging Line Diverter
Adjust the extend end position on the fly for different carton sizes without replacing the actuator, using the external lock nut to set the exact reject push distance.
Palletizing Stopper Gate
Fine-tune the physical stopping point for mixed-load pallet heights, utilizing the 30mm adjustment window to safely accommodate varying box dimensions.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30S the Right Cylinder?
When sizing this unit, consider the 32mm bore's force limits: it delivers 402.1N push at 0.5 MPa. Stepping down to a 25mm bore drops the push force to 245.4N, while moving up to a 40mm bore increases it to 628.3N. If your extend position never needs adjustment, a fixed-stroke ACQ cylinder will suffice. For this made-to-order long-stroke variant, confirm your ordering essentials: 32mm bore, 250mm full stroke, 30mm adjustable window, the -S magnet for sensing, and the default female M8x1.25 rod-end thread with PT1/8 port.
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 ACQJ32X250-30S FAQ
This 32mm bore cylinder provides 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 250mm, but the external stop allows you to shorten the extend stroke by up to 30mm, giving a usable extend range of 220-250mm.
No, the adjuster only changes the extend stroke length; the force remains identical to a standard ACQ because the piston area is unchanged. Note that this cylinder uses fixed elastomer bumpers, not adjustable air cushions, and it will not hold a load on air loss—use an external rod lock or pilot-operated check valve for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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