Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50SB 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 ACQJ32X250-50SB
The AirTAC ACQJ32X250-50SB is a double-acting, single-rod JIS compact cylinder built for applications requiring precise extend positioning. Featuring a 32mm bore and a 250mm full stroke, this long-stroke made-to-order variant utilizes an external M12x1.25 threaded stop with a lock nut. This mechanism allows you to fine-tune the extend travel on the machine, creating a usable extension range of 200 to 250mm without swapping components. The retract stroke remains completely unaffected.
Because the adjustment only limits travel and not piston area, output force stays identical to a standard ACQ of this bore. You get 402.1N of push and 301.6N of pull at 0.5MPa. The unit includes a male M14x1.5 rod-end thread for direct load coupling and a built-in piston magnet (-S) compatible with reed or solid-state switches. Deceleration relies on fixed NBR elastomer bumpers at both ends, so external shock absorbers are recommended for high-speed approaches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50SB |
|---|---|
| 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 ACQJ32X250-50SB
| 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 ACQJ32X250-50SB Is Used
Product Changeover Stops
Ideal for packaging lines running multiple carton sizes, allowing operators to dial in the 200-250mm extend position rapidly during format changes without changing hardware.
Trial End Positions
Perfect for CNC fixture clamping where the exact reach must be dialed in physically on the machine during prototype runs or tooling setup.
Varying Assembly Fixtures
Used in automated assembly stations to accommodate parts of varying widths, providing a adjustable hard stop while maintaining the 402.1N clamping force.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-50SB the Right Cylinder?
Selecting this 32mm bore actuator involves balancing your force and reach requirements. At 0.5MPa it provides 402.1N push force; stepping up to a 40mm bore yields 628.3N, while dropping to a 25mm bore offers 245.4N. A standard fixed-stroke ACQ is sufficient if your end position never varies, but the ACQJ is essential for product-changeover setups. This specific 250mm stroke exceeds the 100mm standard maximum for the bore, classifying it as a special long-stroke configuration. Confirm your ordering essentials: 32mm bore, 250mm full stroke, 50mm adjuster window, -S magnet, and -B male 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 ACQJ32X250-50SB FAQ
This 32mm bore cylinder delivers a push force of 402.1N and a pull force of 301.6N at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The full stroke is 250mm with a 50mm adjustment window, resulting in a usable extend range of 200-250mm.
The external M12x1.25 threaded stop with lock nut limits only the extend length, meaning force is unchanged from a standard ACQ. The cylinder uses fixed elastomer bumpers for end-of-stroke deceleration. It does not hold load on air loss; for fail-safe holding, install an external rod lock or pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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