
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10 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.
The ACQJ32X250-10 is a double-acting JIS compact cylinder with a 250mm stroke and an external extend stop. A threaded rod with a lock nut lets you dial the extend end position back by up to 10mm, yielding a usable forward travel of 240 to 250mm. The return stroke remains fixed at its full length. Because the piston area is unaltered, output force matches a standard ACQ exactly.
This variant features a 32mm bore, a 16mm rod, and a PT1/8 port. It incorporates fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. Note that the 250mm length exceeds the 100mm standard maximum for this bore, making it a long-stroke made-to-order unit. The body includes sensor grooves, though this specific configuration ships without a magnet.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10 |
|---|---|
| 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.
| 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.
| 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).
Dial in the exact extend position during machine changeovers without machining new spacers or swapping cylinder bodies.
Accommodate varying product heights on a single conveyor line by adjusting the forward stop within the 240 to 250mm window.
Establish trial end positions on test rigs by threading the external stop in or out to find the optimal operating point.
When sizing this unit, consider the 402.1N push force at 0.5MPa. If your application needs less force, dropping to a 25mm bore yields 245.4N push, while stepping up to a 40mm bore provides 628.3N push. If you do not require on-machine extend tuning, a fixed-stroke ACQ cylinder suffices. To order, confirm the 32mm bore, 250mm full stroke, 10mm window, female M8x1.25 rod thread, and whether you need the S magnet option for sensing.
Quick checklist
The 32mm bore 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 full stroke is 250mm, but the external adjuster shortens the extend travel to a usable range of 240 to 250mm. The retract stroke is unaffected.
An external M12x1.25 threaded stop with a lock nut limits forward travel without changing piston area, so force remains identical to a standard ACQ. Deceleration relies on fixed NBR elastomer bumpers, not adjustable air cushions. Note that a plain ACQ cylinder will not hold a load on air loss; for fail-safe holding, use an external rod lock.
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