Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke40 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40S
The AirTAC ACQJ32X40-40S is a double-acting JIS compact cylinder with a 32mm bore and 40mm full stroke. An external M12x1.25 threaded stop and lock nut limits the extend end position, providing a usable extend range of 0-40mm. You can fine-tune the forward stroke directly on the machine without swapping parts, while the retract stroke remains unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore. The unit pushes 402.1N and pulls 301.6N at 0.5MPa, with a maximum push capacity of 82kgf at 1.0MPa. It features a fixed NBR elastomer bumper at each end for end-of-stroke deceleration, and the included -S magnet works with reed or electronic solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 40 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 ACQJ32X40-40S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 ACQJ32X40-40S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during part setup, allowing operators to shorten the extend stroke from 40mm down to 0mm without machining new spacers.
Product Changeover Guides
Adapt rejector arms on a packaging line for different carton widths by rotating the external stop screw to shift the extended end position on the fly.
Prototype End Positions
Test various pressing depths on an R&D assembly rig by adjusting the forward stroke limit in small increments until the optimal travel is found.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X40-40S the Right Cylinder?
This 32mm bore provides a middle-ground option between the 25mm bore (245.4N push @0.5MPa) and the 40mm bore (628.3N push @0.5MPa). If your application never requires end-position changes, a fixed-stroke ACQ cylinder is sufficient. When ordering, confirm the 40mm full stroke, the 40mm adjuster window, the -S magnet, and the default female M8x1.25 rod-end 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 ACQJ32X40-40S FAQ
It delivers a push force of 402.1N and a pull force of 301.6N at 0.5MPa, with a push of 562.9N at 0.7MPa and a maximum push of 82kgf at 1.0MPa. The 40mm full stroke has a 40mm adjustment window, giving a usable extend range of 0-40mm.
No, the external M12x1.25 stop only changes the extend length, not the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration rather than adjustable air cushions, and the -S magnet supports both reed and solid-state sensors.
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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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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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