Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30S 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 ACQJ32X25-30S
The AirTAC ACQJ32X25-30S is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 0 to 25 mm directly on your machinery without swapping parts, while the retract stroke remains completely unaffected. The adjuster mechanism alters stroke length only, so output force stays identical to a standard ACQ of the same bore.
Featuring a 32 mm bore and a 16 mm piston rod, this unit pushes with 402.1 N and pulls with 301.6 N at 0.5 MPa. It incorporates fixed elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. The -S magnet option enables position detection using either reed or solid-state electronic switches, and the PT1/8 port ensures reliable pneumatic connection.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30S |
|---|---|
| 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 ACQJ32X25-30S
| 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 ACQJ32X25-30S Is Used
CNC Fixture Positioning
Dial in the extend stop on machining fixtures to accommodate varying raw material thicknesses without manufacturing new spacer blocks.
Carton Sealing Changeover
Adjust the extend endpoint on packaging lines during product format changeovers to set precise sealing head heights on the fly.
Assembly Press Trials
Establish trial end positions for pressing operations during initial machine setup, locking the M12x1.25 adjuster nut once the optimal depth is found.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X25-30S the Right Cylinder?
When sizing this cylinder, consider the 25 mm bore neighbour below (188.9 N pull at 0.5 MPa) or the 40 mm bore above (527.8 N pull at 0.5 MPa) if your force margins are tight. If your application requires a fixed extend length and no on-machine adjustability, a standard ACQ32 cylinder is sufficient. To order this adjustable version correctly, confirm the 32 mm bore, 25 mm full stroke, 30 mm adjustment window, -S magnet option, 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 ACQJ32X25-30S FAQ
This 32 mm bore cylinder provides 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 30 mm adjustment window allows a usable extend range of 0 to 25 mm, while the retract stroke remains fixed.
The external M12x1.25 threaded stop limits the extend stroke but does not change the piston area, meaning force output is identical to a standard ACQ. End-of-stroke damping is handled by fixed NBR elastomer bumpers at both ends, not adjustable air cushions, so external shock absorbers are recommended for high-energy loads.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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