Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke90 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20B
The AirTAC ACQJ32X90-20B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable forward travel from 70 mm up to the full 90 mm stroke directly on your equipment, while the retract stroke remains completely unaffected. Because the piston area is unchanged, output force is identical to a standard ACQ of this bore.
This 32 mm bore variant pushes 402.1 N and pulls 301.6 N at 0.5 MPa. It includes a male M14x1.5 rod-end thread for direct load coupling, a fixed NBR elastomer bumper at each end for end-of-stroke deceleration, and a PT1/8 port. The body features integrated magnetic-switch grooves, though this specific SKU ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 90 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 ACQJ32X90-20B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 ACQJ32X90-20B Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC fixture without machining new spacers, adjusting the stop screw to accommodate varying raw part thicknesses.
Product Changeover Stops
Quickly reposition the extend end stop on a packaging line when switching between different carton sizes, using the 20 mm adjustment window to set new end limits.
Assembly Press Trial Positions
Safely test different extend depths on an automated assembly press, relying on the fixed elastomer bumper to absorb the end-of-stroke impact during setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20B the Right Cylinder?
Selecting this model gives a 32 mm bore with a 90 mm total stroke and a 20 mm adjustment window, yielding a 70-90 mm usable forward range. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder provides the exact same force in a simpler package. When sizing force, stepping down to a 25 mm bore yields 245.4 N push at 0.5 MPa, whereas moving up to a 40 mm bore provides 628.3 N. Confirm your ordering essentials: 32 mm bore, 90 mm full stroke, 20 mm window, male rod thread (-B), and no magnet.
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 ACQJ32X90-20B FAQ
This 32 mm bore cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a push force of 562.9 N at 0.7 MPa and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 90 mm, but the external adjuster allows you to shorten the extend stroke by up to 20 mm, giving a usable extend range of 70-90 mm.
No, the adjuster changes only the stroke length, not the piston area, so force remains identical to a standard ACQ. This model features a male M14x1.5 rod-end thread for direct load coupling, and it uses fixed NBR elastomer bumpers at both ends for deceleration rather than adjustable air cushions.
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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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