Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100 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 ACQJ32X125-100
The ACQJ32X125-100 is a double-acting JIS compact cylinder featuring a 32mm bore and a 125mm full stroke. Because this stroke exceeds the 100mm standard maximum for this bore size, it is manufactured as a long-stroke made-to-order variant. An external M12x1.25 threaded stop with a lock nut limits the extend end position, providing a usable extend range of 25-125mm. The retract stroke remains completely unaffected by this adjustment.
Modifying the extension length does not alter the piston area, meaning the output force is identical to a standard ACQ of the same bore. At 0.5 MPa, it delivers a push force of 402.1 N and a pull force of 301.6 N. The body incorporates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions, and it operates at speeds between 30 and 500 mm/s.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100 |
|---|---|
| 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 ACQJ32X125-100
| 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 ACQJ32X125-100 Is Used
Machining Fixture Stops
Dial in the exact clamping extension on CNC fixtures without machining custom spacers, accommodating raw part tolerances directly on the machine.
Product Changeover Guides
Rapidly reposition the extend endpoint for diverting different carton sizes on a packaging line, cutting format changeover time to seconds.
Prototype End Positions
Establish optimal pushing depth during trial assembly of new electronic components by sweeping the extension length across the 25-125mm range.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-100 the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: a 25mm bore yields 245.4 N push, whereas a 40mm bore provides 628.3 N at 0.5 MPa. If your extend endpoint never varies, a fixed-stroke ACQ cylinder is sufficient and avoids the adjuster overhang. For this configuration, verify your ordering essentials: 32mm bore, 125mm full stroke, 100mm adjustment window, female M8x1.25 rod-end thread, and PT1/8 porting. Note that this unit ships without a magnet; select the -S option if reed or solid-state sensors are required.
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 ACQJ32X125-100 FAQ
This 32mm bore cylinder provides a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a push of 562.9 N at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 25-125mm, achieved by shortening the 125mm full stroke by up to the 100mm adjustment window.
The external M12x1.25 threaded stop with lock nut mechanically limits the extension distance without changing the piston area, so force remains identical to a standard ACQ. Fixed elastomer bumpers decelerate the rod near the ends, but the cylinder will not hold a load if air pressure is lost; use an external rod lock or pilot-operated check valve 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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