Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke70 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75
The AirTAC ACQJ32X70-75 is a double-acting JIS compact cylinder featuring an external extend stop. A threaded M12x1.25 adjuster and lock nut restrict how far the rod travels outward. This permits an on-machine usable extend range of 0 to 70 mm, shortening the 70 mm full stroke by up to 75 mm. The retract distance remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore: 402.1 N push and 301.6 N pull at 0.5 MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Body sensor grooves are present, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 70 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 ACQJ32X70-75
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 ACQJ32X70-75 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during initial setup, allowing perfect alignment against raw material without machining custom stop spacers.
Carton Changeover Flaps
Adapt the folding stroke rapidly on a packaging line when switching between different carton heights, ensuring the platen meets the new panel size perfectly.
Assembly Press Tuning
Test and set trial end positions for pressing bearings on an assembly press, tweaking the outward travel limit safely until the desired insertion depth is achieved.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75 the Right Cylinder?
When sizing this 32 mm bore actuator, consider the neighbouring capacities. Dropping to a 25 mm bore yields 245.4 N push, whereas stepping up to a 40 mm bore provides 628.3 N push at 0.5 MPa. If your end position never varies, a fixed-stroke ACQ cylinder is simpler and entirely sufficient. To order this adjustable unit correctly, confirm the 32 mm bore, 70 mm full stroke, 75 mm window, female M8x1.25 rod end, and PT1/8 porting.
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 ACQJ32X70-75 FAQ
This cylinder 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. It features a 32 mm bore, PT1/8 port, female M8x1.25 rod end, and an M12x1.25 adjuster thread. The usable extend range is 0 to 70 mm via the 75 mm window, while the retract stroke stays fixed.
The external threaded stop physically limits the rod extension distance without altering the piston area, meaning the force remains identical to a standard ACQ. Deceleration is handled solely by a fixed elastomer bumper, not an adjustable air cushion. Note that a plain ACQ body does not hold its load on air loss; for fail-safe holding, use an external rod lock or pilot-operated check valve.
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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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