Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-20
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-20 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 ACQJ32X70-20
The AirTAC ACQJ32X70-20 is a double-acting JIS compact cylinder with a 32mm bore and 70mm full stroke. An external M12x1.25 threaded stop and lock nut limits the extend end position, providing a usable forward range of 50 to 70mm without swapping parts. The retract stroke remains unaffected by this adjustment.
Because the piston area stays constant, output force equals a standard ACQ of this bore: 402.1N push and 301.6N pull at 0.5MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-travel deceleration and operates between 0.15 and 1.0 MPa. Although the body features magnetic-switch grooves, this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-20 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-20 |
|---|---|
| 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 ACQJ32X70-20
| 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 ACQJ32X70-20 Is Used
Machining Fixture Stops
Dial in the exact 50 to 70mm forward position on a CNC machining fixture to accommodate raw casting variations without fabricating new spacer blocks.
Packaging Format Changeover
Rapidly reposition the extend endpoint on a carton sealing head to handle different box heights, using the external stop to shift the stroke within the 20mm window.
Assembly Press Trials
Test multiple insertion depths on an electronics assembly press by adjusting the rod extension in the field, preventing damage to delicate components during setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-20 the Right Cylinder?
Selecting this 32mm bore provides 402.1N push at 0.5MPa; stepping down to a 25mm bore drops push to 245.4N, while a 40mm bore raises it to 628.3N. If your machine never requires end-position tuning, a fixed-stroke ACQ cylinder delivers identical thrust in a simpler package. When ordering, confirm the 70mm full stroke, the 20mm adjustment window, the default female M8x1.25 rod end, and the PT1/8 port.
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 ACQJ32X70-20 FAQ
This 32mm bore cylinder delivers 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 full stroke is 70mm, but the external adjuster allows you to shorten the extend stroke by up to 20mm, yielding a usable forward range of 50 to 70mm.
No, the external M12x1.25 threaded stop only limits the rod extension length; it does not alter piston area, so thrust remains identical to a standard ACQ. Deceleration is provided by fixed NBR elastomer bumpers at both ends, not an adjustable air cushion. Note that this model lacks a sensor magnet.
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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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