Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB
The AirTAC ACQJ32X75-50SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine, yielding a usable extension range of 25-75 mm from the 75 mm full stroke. The retract stroke remains completely unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This 32 mm bore unit delivers 402.1 N push and 301.6 N pull force at 0.5 MPa, with a maximum push capacity of 82 kgf at 1.0 MPa. It includes a male M14x1.5 piston rod end for direct load coupling, a PT1/8 port, and an M12x1.25 adjuster thread. The body uses fixed elastomer bumpers for end-of-stroke deceleration rather than adjustable air cushions. Equipped with a built-in magnet (-S), the cylinder is fully compatible with reed or electronic solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 75 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB Is Used
Machining Fixture Clamps
Dial in the exact clamping extension on milling fixtures to accommodate raw material thickness variations without fabricating custom spacers.
Packaging Changeover Stops
Rapidly reposition the end-of-stroke stop on a carton folding machine when switching between different box formats and product lines.
Assembly Press Testing
Iteratively test and set trial end positions for pressing bearings into housings, finding the optimal depth before finalizing the mechanical setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB the Right Cylinder?
When sizing this actuator, compare it against adjacent bores: the 25 mm version yields 245.4 N push, while the 40 mm bore provides 628.3 N at 0.5 MPa. Choose this 32 mm model when your application requires roughly 400 N of push force and on-the-fly stroke length tuning. If your extend position never changes, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 32 mm bore, 75 mm full stroke, 50 mm adjuster window, the -S magnet, and the -B male rod thread.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X75-50SB FAQ
It provides 402.1 N push and 301.6 N pull force 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 75 mm, and with the 50 mm adjustment window, the usable extend range is 25-75 mm.
No, the adjuster only limits how far the rod extends, leaving the piston area and force unchanged from a standard ACQ. The retract stroke is unaffected, and fixed elastomer bumpers handle end-of-stroke deceleration. Note that a plain cylinder does not hold its load on air loss, so an external rod lock is needed for fail-safe holding.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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