Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 25mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke25 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30SB
The AirTAC ACQJ32X25-30SB is a double-acting JIS compact cylinder with a 32mm bore and a 25mm full stroke. An external M12x1.25 threaded stop and lock nut limits the extend end position, providing a usable extend range of 0-25mm. The retract stroke remains unaffected. Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore: 402.1N push and 301.6N pull at 0.5MPa.
This unit includes a male M14x1.5 rod-end thread for direct load coupling and a built-in piston magnet (-S) compatible with reed or solid-state electronic switches. It features a fixed NBR elastomer bumper at each end for end-of-stroke deceleration, operating within a 0.15-1.0MPa pressure range. The standard PT1/8 port supplies air to the 16mm diameter piston rod.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 25 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 ACQJ32X25-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 ACQJ32X25-30SB Is Used
Product Changeover Stops
Quickly dial in a new extended end position on packaging machinery when switching product sizes, using the external stop to set the exact 0-25mm reach.
Trial End Positions
Dial in the precise extend stroke during CNC machine door or guard actuation setup without machining new spacers or swapping cylinder hardware.
Setup-Varying Fixtures
Accommodate varying clamping depths on machining fixtures by turning the threaded stop to shorten the extend stroke exactly where the part requires.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30SB the Right Cylinder?
If you require less push force, the 25mm bore yields 245.4N at 0.5MPa, while stepping up to a 40mm bore provides 628.3N. If the exact 25mm extend position is permanently fixed and never needs on-machine tweaking, a standard ACQ32X25 cylinder will suffice. When ordering this adjustable variant, confirm the 32mm bore, 25mm full stroke, 30mm adjustment window, the -S magnet for sensing, 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 ACQJ32X25-30SB FAQ
The usable extend range is 0-25mm (25mm full stroke minus the 30mm window). The force is identical to a standard ACQ: 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa.
The external M12x1.25 threaded stop changes only the extend stroke length, not the piston area, so force remains identical to a standard ACQ. Retract is unaffected. The cylinder relies on fixed NBR elastomer bumpers for deceleration, not adjustable air cushions.
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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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