
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X300-10S is a double-acting, single-rod JIS compact cylinder engineered for precise extend-position tuning. An external M12x1.25 threaded stop and lock nut lets you dial the extension back by up to 10 mm, yielding a usable extend span of 290 to 300 mm. The retract distance remains fixed at the full 300 mm. Because the piston area stays constant, output force is identical to a standard ACQ of this bore size. This unit features a built-in magnet (-S) for position sensing and a 300 mm stroke, placing it in the long-stroke, made-to-order category for the 32 mm bore range.
Operating between 0.15 and 1.0 MPa, this cylinder relies on fixed NBR elastomer bumpers at both ends for end-of-travel deceleration rather than adjustable air cushions. The Ø16 mm piston rod uses a PT1/8 port and a female M8x1.25 rod-end thread. The integrated magnetic band supports both reed and solid-state switches, giving you flexible sensor mounting options along the body.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 300 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. |
| ×300 | 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 reach on a CNC milling fixture without machining new spacers, allowing quick adaptation for varying raw casting lengths.
Adjust the extend endpoint on a packaging line diverter arm to handle different carton widths on the fly, minimizing changeover downtime.
Set precise trial end positions on an electronic component insertion press, testing engagement depth before locking the nut for production runs.
When sizing this actuator, compare it against neighbouring bores: a 25 mm bore provides 245.4 N push at 0.5 MPa, while a 40 mm bore yields 628.3 N push. The 32 mm bore here generates 402.1 N push, making it suitable for medium-duty tasks. If your machine requires a fixed 300 mm extension without on-site variance, a standard ACQ32X300 cylinder will suffice. To order this adjustable version, confirm the 32 mm bore, the 300 mm base stroke, the 10 mm adjust window, the -S magnet option, and the 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 full stroke is 300 mm, but the external stop allows you to shorten the extend distance within a 290 to 300 mm window. The retract stroke remains unaffected.
The external M12x1.25 threaded stop only limits how far the rod extends; it does not alter the piston area, so force output remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions. The built-in magnet works with reed or electronic solid-state switches.
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