
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10S 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 ACQJ32X250-10S is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut to limit the extend stroke. This long-stroke made-to-order variant provides a usable extend range of 240-250 mm, shortening the full 250 mm stroke by up to 10 mm, while the retract stroke remains unaffected. An M12x1.25 adjuster thread enables precise on-machine end-position tuning.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 402.1 N push and 301.6 N pull at 0.5 MPa. The unit incorporates a fixed NBR elastomer bumper at each end for end-of-travel deceleration and includes a built-in piston magnet (-S) for position sensing. It operates at 30-500 mm/s within a -20 to +70 C environment, utilizing a PT1/8 port and a 16 mm rod.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10S |
|---|---|
| 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 extend position within the 240-250 mm window during packaging format changes without machining new spacers.
Test clamping reach on automated assembly machines by tweaking the external stopper lock nut to find the exact contact point.
Accommodate multiple part heights on a single test rig by adjusting the extend limit rather than swapping the entire cylinder.
When sizing this 32 mm bore actuator, stepping down to a 25 mm bore yields 245.4 N push, whereas stepping up to a 40 mm bore provides 628.3 N push at 0.5 MPa. If your application never requires stroke shortening, a fixed-stroke ACQ cylinder is sufficient. For setup-varying fixtures or trial end positions, this adjustable stop prevents the need for new parts. Confirm ordering essentials: 32 mm bore, 250 mm full stroke, 10 mm window, -S magnet, and female M8x1.25 rod thread.
Quick checklist
It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 240-250 mm (a 10 mm window off the 250 mm full stroke).
No, the external M12x1.25 threaded stop alters only the extend stroke length, leaving the force identical to a standard ACQ. The cylinder uses a fixed NBR elastomer bumper at each end, not an adjustable air cushion. The -S magnet works with reed or electronic solid-state switches.
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