Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10B 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 ACQJ32X250-10B
The ACQJ32X250-10B is a double-acting JIS compact cylinder featuring a 250mm extended stroke and a male M14x1.5 piston rod end. An external M12x1.25 threaded stop with a lock nut limits the extend end position, providing a usable extend range of 240-250mm. 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 this bore.
This long-stroke made-to-order variant exceeds the 100mm standard maximum for a 32mm bore, reaching into the 300mm long-stroke range. It delivers 402.1N push and 301.6N pull force at 0.5MPa, with a maximum push capacity of 82kgf at 1.0MPa. The body incorporates fixed NBR elastomer bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions, and includes sensor grooves for adding reed or solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10B |
|---|---|
| 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 ACQJ32X250-10B
| 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 ACQJ32X250-10B Is Used
Fixture Position Tuning
Dial in the exact clamping extend position on a CNC machining center within the 240-250mm window without machining new spacer blocks or swapping cylinders.
Product Changeover Stops
Adjust the end-of-stroke stop on an assembly line conveyor diverter to accommodate new package lengths rapidly, keeping downtime to a minimum.
Prototype End Positions
Test various extend end positions on a packaging machine prototype to find the optimal travel distance before finalizing the mechanical hard stop.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-10B the Right Cylinder?
When sizing this 32mm bore actuator, stepping down to a 25mm bore yields 245.4N push and 188.9N pull at 0.5MPa, whereas stepping up to a 40mm bore provides 628.3N push and 527.8N pull at 0.5MPa. If your application requires a fixed extend length that never varies, a standard ACQ cylinder without the external stop is sufficient. To order this adjustable model correctly, confirm the 32mm bore, 250mm full stroke, 10mm adjustment window, the male M14x1.5 rod thread, and note that this unit ships without 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 ACQJ32X250-10B FAQ
This cylinder provides 402.1N push and 301.6N pull force at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The full stroke is 250mm, but the external M12x1.25 adjuster allows you to shorten the extend stroke by up to 10mm, giving a usable extend range of 240-250mm.
No, the adjuster only changes the extend stroke length, not the piston area, so the force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers for deceleration rather than adjustable air cushions. A plain ACQ-type cylinder does not hold its load on air loss, so for fail-safe load holding, an external rod lock or pilot-operated check valve is recommended.
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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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