Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-40B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-40B 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 ACQJ32X90-40B
The AirTAC ACQJ32X90-40B is a double-acting JIS compact cylinder featuring a 90mm full stroke and an external threaded stop with a lock nut. This mechanism limits the extend end position, providing a usable forward range of 50 to 90mm. The retract stroke remains completely unaffected by this adjustment. Because the piston area is unchanged, the output force is identical to a standard ACQ of the same 32mm bore.
This variant includes a male M14x1.5 piston rod end for direct load coupling and uses a PT1/8 port. It operates at speeds from 30 to 500mm/s and relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. The body retains magnetic-switch grooves, though this specific configuration ships without a magnet installed.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-40B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-40B |
|---|---|
| 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 ACQJ32X90-40B
| 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 ACQJ32X90-40B Is Used
Machining Fixture Stops
Set precise extend end positions up to 90mm during initial machining fixture setup, allowing rapid on-machine tweaks without swapping out cylinder bodies.
Product Changeover
Adapt automated equipment quickly when product sizes change by dialing back the extend stroke by up to 40mm to accommodate varying part dimensions.
Assembly Press Positioning
Dial in the exact forward pressing distance on an assembly line, relying on the fixed elastomer bumper to consistently decelerate the load near the end of travel.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X90-40B the Right Cylinder?
If you need slightly less thrust, the 25mm bore yields 245.4N push at 0.5MPa, while stepping up to the 40mm bore provides 628.3N push. Choose this 32mm bore if your required force sits around 402.1N. If your application always operates at the full 90mm extend distance without needing positional tweaks, a fixed-stroke ACQ32 cylinder is sufficient. When ordering, verify the 90mm full stroke, the 40mm adjustment window, the male rod thread, and the lack of a 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 ACQJ32X90-40B FAQ
The usable extend range is 50-90mm (90mm full stroke minus the 40mm window). Force is identical to a standard ACQ: 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 retract stroke remains unaffected.
The external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, changing only the stroke length and not the force. A plain ACQ-type cylinder does not hold its load on air loss; the rod drifts and the fixed NBR bumper only decelerates near the stroke end. For a fail-safe hold, use an external rod lock or pilot-operated check valve.
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 ACQJ32X90-40B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.