Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20SB 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 ACQJ32X125-20SB
The AirTAC ACQJ32X125-20SB is a double-acting, single-rod JIS compact cylinder featuring an external extend stop mechanism. A threaded adjuster with lock nut restricts outward travel, yielding a usable extension span of 105-125mm from the 125mm total length. Retraction depth remains factory standard. This unit is a made-to-order long-stroke variant, as 125mm surpasses the 100mm standard maximum for a 32mm bore.
Because the piston area is unaltered, output force equals a conventional ACQ of this size. The 16mm rod uses an M14x1.5 male thread for direct load coupling, while the M12x1.25 adjuster sets your end position. Fixed NBR elastomer bumpers absorb impact at both extremes. The built-in magnet (-S) interfaces with reed or solid-state sensors, and the PT1/8 port supplies air.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20SB |
|---|---|
| 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 ACQJ32X125-20SB
| 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 ACQJ32X125-20SB Is Used
Machining Fixture Stops
Dial in exact clamping positions on CNC fixtures during part-changeover without machining custom spacers.
Carton Sealing Heads
Adjust the pressing height of sealing jaws on the fly to accommodate varying box profiles.
Assembly Press Tunning
Set precise downward travel limits on electronic assembly presses during prototype runs and tooling setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-20SB the Right Cylinder?
For lower push requirements, the 25mm bore provides 245.4N at 0.5MPa, whereas the 40mm bore yields 628.3N if your application demands greater power. Choose a fixed-length ACQ if on-machine end-position tuning is unnecessary. To order, confirm the 32mm bore, 125mm stroke, 20mm window, magnet (-S), and male rod thread (-B).
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 ACQJ32X125-20SB FAQ
It provides 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 usable extend range is 105-125mm, allowing up to 20mm of shortening from the 125mm full stroke.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke without affecting the retract distance. Force remains identical to a standard ACQ. Fixed NBR bumpers decelerate the piston near the ends, but the cylinder will drift on air loss; use an external rod lock for fail-safe holding.
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 ACQJ32X125-20SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.