Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-100SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-100SB 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 ACQJ32X250-100SB
The AirTAC ACQJ32X250-100SB is a double-acting, single-rod JIS compact cylinder engineered as a long-stroke, made-to-order variant exceeding the standard 100mm maximum for a 32mm bore. It features an external threaded stop with a lock nut that permits on-machine end-position tuning of the extend stroke. You can shorten the full 250mm extension by up to 100mm, yielding a usable extend range of 150-250mm, while the retract stroke remains completely unaffected.
Because the adjustment mechanism solely limits travel length and leaves piston area untouched, output force stays identical to a standard ACQ counterpart. At 0.5 MPa, push force is 402.1N and pull is 301.6N. The unit incorporates fixed NBR elastomer bumpers at each end rather than adjustable air cushions, and the -S magnet enables tracking via reed or solid-state switches. The -B suffix equips the Ø16mm rod with a male M14x1.5 thread for direct load coupling.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-100SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-100SB |
|---|---|
| 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 ACQJ32X250-100SB
| 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 ACQJ32X250-100SB Is Used
Machining Fixture Tuning
Dial in clamping extension on machining fixtures during product changeover without fabricating new spacer blocks.
Diverter Gate Positioning
Set exact reject arm protrusion on conveyor lines to handle varying package dimensions on the fly.
Assembly Press Setup
Establish trial end positions for pressing sub-components on automated assembly machinery.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-100SB the Right Cylinder?
When sizing this bore, stepping down to a 25mm version drops the 0.5 MPa push force to 245.4N, whereas stepping up to a 40mm bore increases it to 628.3N. If your application never requires stroke modifications, a fixed-stroke ACQ cylinder will suffice and avoids the external adjuster overhang. To order correctly, confirm the 32mm bore, the 250mm full stroke, the 100mm adjustment window, the -S magnet for sensing, and the -B male M14x1.5 rod thread. Note that PT1/8 ports are standard.
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 ACQJ32X250-100SB FAQ
The usable extend range is 150-250mm (a 250mm full stroke minus up to 100mm via the external M12x1.25 adjuster). Force equals a standard ACQ: 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, with a maximum push of 82 kgf at 1.0 MPa.
The external threaded stop limits extension travel only; it does not alter force or affect the fixed NBR bumper. The retract stroke stays unchanged. A plain ACQ-type cylinder will drift if air is lost or valves are centered, so an external rod lock or pilot-operated check valve is required for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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