Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50 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 ACQJ32X70-50
The AirTAC ACQJ32X70-50 is a double-acting JIS compact cylinder featuring an external M12x1.25 threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine across a 20 to 70 mm usable range, shortening the 70 mm full stroke by up to a 50 mm window. The retract movement remains completely unaffected.
Because the piston area stays constant, output force equals a standard ACQ of the same bore, yielding 402.1 N push and 301.6 N pull at 0.5 MPa. The unit integrates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. Sensor grooves are built into the body, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50 |
|---|---|
| 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 ACQJ32X70-50
| 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 ACQJ32X70-50 Is Used
Product Changeover Stops
Quickly modify the extend endpoint on packaging lines when switching to a different carton size, avoiding physical parts replacement.
Machining Fixture Setup
Dial in the exact clamping reach on a CNC fixture during initial part trials to prevent over-travel and workpiece damage.
Assembly Press Positioning
Regulate the pressing depth of pins or bearings on an automated assembly rig without altering the pneumatic valve flow.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50 the Right Cylinder?
When sizing this 32 mm bore, stepping down to a 25 mm bore yields 245.4 N push at 0.5 MPa, while stepping up to a 40 mm bore provides 628.3 N push. If your equipment never requires end-position adjustments, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable variant, confirm the 32 mm bore, 70 mm full stroke, 50 mm window, female M8x1.25 rod thread, and whether a -S magnet is needed for switching.
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 ACQJ32X70-50 FAQ
The usable extend range is 20-70 mm, created by subtracting up to a 50 mm window from the 70 mm full stroke. It 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.
No, the external M12x1.25 threaded stop only limits the extend length; the piston area is unchanged so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers, not adjustable air cushions, and the retract stroke is unaffected.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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