Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-30
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke125 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-30
The ACQJ32X125-30 is a double-acting, single-rod JIS compact cylinder built for applications requiring a longer travel distance with on-machine end-position tuning. As a long-stroke variant, the 125 mm total travel exceeds the standard 100 mm maximum for this 32 mm bore, making it a made-to-order solution for extended reach. An external threaded stop with a lock nut limits the forward movement, providing a usable extend range of 95 to 125 mm. The retract distance remains completely unaffected by this adjustment.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore. You can expect a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa. The unit features a 16 mm piston rod, a PT1/8 port, and fixed elastomer bumpers at both ends to absorb impact. The body includes sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-30 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 125 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 ACQJ32X125-30
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 ACQJ32X125-30 Is Used
Machine Tending Changeover
Dial in the extend stop during product family changeovers on a CNC lathe loader without machining new spacers or swapping cylinders.
Package Diverter Setup
Adjust the pusher rod extension on a packaging conveyor to handle varying carton widths on the fly, ensuring precise sorting.
Multi-Height Fixture Stops
Fine-tune the end position of clamping fixtures on an assembly press to accommodate different part stack heights during trial runs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-30 the Right Cylinder?
When sizing this unit, consider the neighbouring bores: a 25 mm bore yields 245.4 N push @0.5 MPa, while a 40 mm bore provides 628.3 N. If your extend position never needs tuning, a fixed-stroke ACQ32X125 will suffice and avoids the adjuster overhang. For this made-to-order model, confirm the 32 mm bore, 125 mm full travel, 30 mm adjuster window, and whether you need the -S magnet option for reed or solid-state switches. Note that a plain compact cylinder will not hold a load on air loss; add an external rod lock or pilot-operated check valve for fail-safe holding.
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 ACQJ32X125-30 FAQ
This 32 mm bore cylinder has a full stroke of 125 mm with a 30 mm adjustment window, allowing a usable extend range of 95 to 125 mm. The output force matches a standard ACQ: 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 retract stroke remains fixed at 125 mm.
An external M12x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the forward travel without altering the piston area, so force is unchanged. Deceleration relies on fixed NBR elastomer bumpers rather than adjustable air cushions. For high-speed or high-energy loads, consider adding an external shock absorber or slowing the approach.
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 ACQJ32X125-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.