Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke125 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100SB
The ACQJ32X125-100SB is a double-acting JIS compact cylinder with a 125 mm stroke and a 32 mm bore. As a long-stroke made-to-order variant exceeding the standard 100 mm maximum, it features an external M12x1.25 threaded stop with a lock nut. This mechanism allows you to fine-tune the extend end position on the machine, yielding a usable forward range of 25-125 mm without swapping components. The retract stroke remains completely unaffected.
Because the piston area stays constant, output force equals a standard ACQ of this size. At 0.5 MPa it delivers 402.1 N of push force and 301.6 N of pull force. The unit includes a male M14x1.5 rod end for direct load coupling, a PT1/8 port, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 125 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 ACQJ32X125-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 ACQJ32X125-100SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining center during setup, accommodating different part heights without machining custom spacers.
Packaging Changeover
Rapidly reposition the product pusher end-point on a packaging line when switching between varying carton lengths or box formats.
Assembly Press Testing
Establish trial end positions for pressing operations on automated assembly machines, finding the optimal travel before finalizing hard stops.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100SB the Right Cylinder?
Choosing this 32 mm bore provides 402.1 N push at 0.5 MPa. If your application requires less force, stepping down to a 25 mm bore yields 245.4 N push, while moving up to a 40 mm bore offers 628.3 N. If you never need to alter the extend length, a fixed-stroke ACQ cylinder is simpler and more compact. When ordering this adjustable model, confirm the 125 mm full stroke, 100 mm window, the -S magnet for electronic or reed switches, 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 ACQJ32X125-100SB FAQ
This long-stroke cylinder has a 125 mm stroke with a 100 mm adjustment window, giving a usable extend range of 25-125 mm. 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 external M12x1.25 threaded stop with lock nut limits forward travel only; retract is unaffected and force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers, not adjustable cushions, and will not hold a load on air loss—use an external rod lock 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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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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