
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-40 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 35mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ32X35-40 is a double-acting JIS compact cylinder with a 32mm bore and a 35mm full stroke. It features an external M12x1.25 threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend range from 0 up to 35mm directly on the machine, while the retract stroke remains completely unaffected.
Because the adjuster only changes the travel length and not the piston area, the output force is identical to a standard ACQ of this bore. At 0.5 MPa it provides 402.1N of push force and 301.6N of pull force. The unit incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and includes body grooves for mounting magnetic switches.
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-40 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 35 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. |
| ×35 | 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 for varying raw material thicknesses on a milling fixture without swapping out physical spacer rings.
Quickly reset the extend endpoint on a packaging line pusher to accommodate different box dimensions during product changeovers.
Establish the ideal trial end position for a pressing operation on a test rig, safely limiting the travel to prevent workpiece damage.
When sizing this 32mm bore actuator, note that stepping down to a 25mm bore yields 245.4N push at 0.5 MPa, while stepping up to a 40mm bore provides 628.3N. If your application requires a fixed end position and never needs on-the-fly adjustments, a standard ACQ cylinder will suffice. To order this adjustable version correctly, confirm the 32mm bore, 35mm full stroke, 40mm adjustment window, and the default female M8x1.25 rod-end thread.
Quick checklist
It delivers 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 35mm, but the external stop allows you to shorten the extend travel by up to 40mm, giving a usable extend range of 0 to 35mm.
The external M12x1.25 threaded stop mechanically limits how far the rod extends, letting you set the end position on the fly. It does not alter the piston area, so force remains identical to a standard ACQ. Deceleration is handled by a fixed elastomer bumper, not an adjustable air cushion, so external shock absorbers may be needed for high-energy loads.
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