
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10SB 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 AirTAC ACQJ32X250-10SB is a double-acting, single-rod JIS compact cylinder built for adjustable extend stroke. It features an external M12x1.25 threaded stop with a lock nut on the rod-end side. This mechanism lets you fine-tune the extend end position on the machine itself, yielding a usable extend range of 240-250 mm. The retract stroke remains completely unaffected by this adjustment.
Because the internal piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 402.1 N push at 0.5 MPa. This specific configuration is a long-stroke, made-to-order variant, as the 250 mm stroke exceeds the 100 mm standard maximum for a 32 mm bore. It includes a male M14x1.5 piston rod end for direct load coupling, a built-in piston magnet for position sensing, and fixed NBR elastomer bumpers at each end for shock absorption.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10SB |
|---|---|
| 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 clamping depth on deep-reach machining fixtures using the external stop, avoiding part deformation.
Adjust the extend position of a sorting diverter arm on the fly to accommodate varying package lengths on a packaging line.
Set trial end positions for testing equipment strokes without machining new spacers or swapping out components.
When sizing this unit, consider the neighbouring bores: a 25 mm bore provides 245.4 N push at 0.5 MPa, while a 40 mm bore yields 628.3 N. If your extend end position never varies, a fixed-stroke ACQ cylinder suffices. To order this adjustable model correctly, confirm the 32 mm bore, the 250 mm full stroke, the 10 mm adjustment window, the S magnet option, and the B male rod thread. Note that a plain compact cylinder does not hold its load on air loss; for fail-safe holding, an external rod lock or pilot-operated check valve is required.
Quick checklist
The usable extend range is 240-250 mm via a 10 mm adjustment window. Force is identical to a standard ACQ: 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 M12x1.25 threaded stop with lock nut limits only the extend length, leaving the retract stroke unaffected. It does not change force. Deceleration relies on fixed NBR elastomer bumpers, not adjustable air cushions. The included -S magnet works with reed or electronic solid-state switches.
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