Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20SB 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 ACQJ32X90-20SB
The ACQJ32X90-20SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke anywhere from 70 mm up to the full 90 mm directly on the machine, while the retract stroke remains unaffected. This on-machine tuning allows quick setup changes without swapping parts.
Because the adjuster only restricts travel length, the piston area stays the same, meaning force is identical to a standard ACQ of this bore. At 0.5 MPa it delivers 402.1 N of push force and 301.6 N of pull force. The unit includes a male M14x1.5 rod-end thread, a PT1/8 port, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20SB |
|---|---|
| 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 ACQJ32X90-20SB
| 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 ACQJ32X90-20SB Is Used
Multi-Product Machining Stops
Dial in the extend stop from 70 to 90 mm on a CNC fixture to accommodate different raw material lengths during rapid product changeovers.
Variable Carton Sealing
Adjust the extend end position on the fly to match varying package depths without replacing the cylinder or altering the pneumatic plumbing.
Prototype Press Tuning
Set precise trial end positions on a small assembly press, using the M12x1.25 adjuster thread to find the optimal working distance before locking it down.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20SB the Right Cylinder?
When sizing this 32 mm bore actuator, consider the 402.1 N push force at 0.5 MPa: stepping down to a 25 mm bore drops push to 245.4 N, while moving up to a 40 mm bore increases it to 628.3 N. If your application requires a fixed extend position every cycle, a standard ACQ32 cylinder without the external adjuster will suffice. To order this adjustable version, confirm the 90 mm full stroke, the 20 mm adjustment window, the -S magnet for switch readiness, and the -B male M14x1.5 rod thread.
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 ACQJ32X90-20SB FAQ
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. The full stroke is 90 mm with a 20 mm adjustment window, giving a usable extend range of 70-90 mm. The rod is 16 mm with a male M14x1.5 thread, and the external adjuster uses an M12x1.25 thread.
No, the external stop only changes the extend travel distance; the piston area remains the same, so force is identical to a standard ACQ32. End-of-stroke shock is handled by fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. The -S magnet works with reed or solid-state electronic switches for position sensing.
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-20SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.