Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke250 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75
The AirTAC ACQJ32X250-75 is a double-acting, single-rod JIS compact cylinder built for applications requiring variable extend end positions. As a long-stroke made-to-order variant, it features a 250mm total stroke and an external M12x1.25 threaded stop with a lock nut. This mechanism allows you to fine-tune the extend travel anywhere between 175mm and 250mm directly on your equipment, while the retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 402.1N push and 301.6N pull at 0.5 MPa. The 32mm bore uses a PT1/8 port and a Ø16mm rod with an M8x1.25 female thread end. Deceleration is handled by fixed NBR elastomer bumpers at both ends, and the body includes sensor grooves for adding reed or solid-state switches, though this specific unit ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 250 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 ACQJ32X250-75
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 ACQJ32X250-75 Is Used
Variable Length Stopper
Adjusting the extend stop on a packaging conveyor to accommodate different carton depths without swapping out the entire cylinder assembly.
Product Changeover
Fine-tuning the extend position during automated machine changeovers to test new end-of-arm tooling reach before locking the nut.
Prototype Positioning
Dialing in the exact 175mm to 250mm extend length on a machining fixture during R&D trials to find the optimal clamping point.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-75 the Right Cylinder?
When sizing this actuator, note that the 402.1N push force at 0.5 MPa can be stepped down to 301.6N by choosing a 25mm bore, or increased to 628.3N by moving up to a 40mm bore. If your extend end position never varies, a fixed-stroke ACQ cylinder is simpler and more cost-effective. For this adjustable model, confirm your ordering essentials: 32mm bore, 250mm full stroke, 75mm window, female rod thread, and no magnet. Since the 250mm length exceeds the 100mm standard maximum for this bore, it is provided as a special long-stroke unit.
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 ACQJ32X250-75 FAQ
This cylinder provides a push force of 402.1N and a pull force of 301.6N at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 175mm to 250mm, adjustable via the 75mm window.
The external M12x1.25 threaded stop limits extend length without altering piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers rather than adjustable air cushions, and it will not hold a load if air pressure is lost, requiring an external rod lock for fail-safe holding.
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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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