Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75B 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 ACQJ32X70-75B
The AirTAC ACQJ32X70-75B is a double-acting JIS compact cylinder with a 32mm bore and a 70mm full stroke. An external M12x1.25 threaded stop and lock nut on the rod-end side lets you limit the extend position, providing a usable extend range of 0-70mm. The retract stroke remains fixed and unaffected.
Because the piston area is unchanged, the output force equals a standard ACQ of this bore. You get 402.1N push and 301.6N pull at 0.5 MPa. The body features fixed NBR elastomer bumpers at each end and integrated sensor grooves, though this specific configuration ships without a magnet. It includes a male M14x1.5 rod-end thread for direct load coupling.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75B |
|---|---|
| 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 ACQJ32X70-75B
| 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 ACQJ32X70-75B Is Used
Assembly Line Changeovers
Dial in the extend stop from 0 to 70mm during product family transitions on an assembly fixture without swapping cylinder hardware.
Machining Cell Stops
Set precise end positions for clamping varying part heights, relying on the 82 kgf max push at 1.0 MPa to hold the workpiece securely.
Packaging Format Adjustments
Tune the extend stroke on the fly for different carton sizes using the external M12x1.25 adjuster, keeping the retract stroke constant.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-75B the Right Cylinder?
For lower force needs, the 25mm bore yields 245.4N push at 0.5 MPa, while the 40mm bore provides 628.3N if your application requires more thrust. If your end position never varies, a fixed-stroke ACQ cylinder is a simpler choice. When ordering, verify the 32mm bore, 70mm full stroke, 75mm adjustment window, the male M14x1.5 rod thread, and note the absence of the S magnet option.
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 ACQJ32X70-75B FAQ
It delivers 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 70mm with a 75mm adjustment window, giving a usable extend range of 0-70mm.
The external M12x1.25 threaded stop with lock nut limits the extend distance only, leaving the retract stroke unaffected. Force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed NBR elastomer bumpers at each end rather than adjustable air cushions, so external shock absorbers are recommended for high-energy loads.
Authorized Export Seller
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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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