Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-50B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-50B 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 ACQJ32X90-50B
The AirTAC ACQJ32X90-50B 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 extend travel anywhere from 40 mm up to the full 90 mm directly on the machine, while the retract stroke remains completely unaffected. Because the piston area stays the same, output force equals a standard ACQ of this bore size.
This 32 mm bore unit pushes 402.1 N and pulls 301.6 N at 0.5 MPa, with a maximum push capacity of 82 kgf at 1.0 MPa. It incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Equipped with a male M14x1.5 piston rod end for direct load coupling, the body retains sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-50B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-50B |
|---|---|
| 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 ACQJ32X90-50B
| 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 ACQJ32X90-50B Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during part family changeovers without machining new stop collars.
Carton Forming Pushers
Alter the extension length on a packaging line to accommodate different box dimensions on the fly.
Assembly Trial Positions
Test multiple end-of-stroke contact points during robotic assembly prototyping to find the optimal pressing depth.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-50B the Right Cylinder?
When sizing this actuator, consider the neighboring bores: a 25 mm unit yields 245.4 N push, whereas a 40 mm provides 628.3 N at 0.5 MPa. If your end-position never varies, a fixed-stroke ACQ is simpler and suffices. To order this adjustable variant correctly, confirm the 32 mm bore, 90 mm full stroke, 50 mm window, the male M14x1.5 rod thread, and note that no magnet is installed.
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 ACQJ32X90-50B FAQ
At 0.5 MPa it provides 402.1 N push and 301.6 N pull; at 0.7 MPa push is 562.9 N, and max push is 82 kgf at 1.0 MPa. The usable extend range is 40-90 mm (90 mm full stroke minus the 50 mm window), while the retract stroke is unaffected.
The M12x1.25 external adjuster acts as a mechanical screw with a lock nut to limit extension travel only; it does not change the piston area, so force remains identical to a standard ACQ. Deceleration relies on a fixed NBR elastomer bumper at each end, and for fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required.
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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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