
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
This double-acting JIS compact cylinder features a 32mm bore and a 70mm base stroke, shortened by an external threaded stop with a lock nut. You get a usable extend span of 60-70mm, while the retract distance remains fixed at 70mm. The external adjuster uses an M12x1.25 thread for precise positioning.
Because the piston area is unchanged, output force is identical to a standard ACQ of this size, delivering 402.1N push and 301.6N pull at 0.5MPa. It integrates fixed elastomer bumpers at both ends and includes a built-in magnet for position sensing.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 70 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. |
| ×70 | 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 fixture during a product changeover without machining new spacers or swapping cylinders.
Alter the flap-folding end position on the fly to accommodate varying box heights while running a mixed packaging line.
Safely test different engagement depths for a press fit operation, backing the rod off by up to 10mm before finalizing the setup.
When sizing this unit, stepping down to a 25mm bore yields 245.4N push at 0.5MPa, while moving up to a 40mm bore provides 628.3N. If your machine setup never requires end-position tweaks, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 32mm bore, 70mm full stroke, 10mm window, the S magnet option, and the default female M8x1.25 rod thread.
Quick checklist
It provides 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 usable extend range is 60-70mm via a 10mm adjustment window, while the retract stroke stays at 70mm.
An external M12x1.25 threaded stop with a lock nut limits the extend distance, changing only the stroke length and not the piston area, so force remains identical to a standard ACQ. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions. The built-in S magnet works with reed or electronic solid-state switches.
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