Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30SB 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 ACQJ32X250-30SB
The ACQJ32X250-30SB is a double-acting JIS compact cylinder built for applications requiring a long, made-to-order 250mm stroke with on-machine end-position tuning. Because 250mm exceeds the standard 100mm maximum for a 32mm bore, this unit is configured as a long-stroke variant. An external M12x1.25 threaded stop and lock nut lets you shorten the extend travel by up to 30mm, yielding a usable forward range of 220-250mm without swapping parts. The retract stroke remains fixed.
This model includes a piston magnet (-S) for position sensing alongside a male M14x1.5 rod-end thread (-B) for direct load coupling. The adjuster alters stroke length only, so output force matches a standard ACQ exactly: 402.1N push and 301.6N pull at 0.5MPa. It features a fixed NBR elastomer bumper at each end and PT1/8 ports. Note that a plain compact cylinder drifts on air loss; add an external rod lock for fail-safe holding.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30SB |
|---|---|
| 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 ACQJ32X250-30SB
| 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 ACQJ32X250-30SB Is Used
Extended-Reach Stop Tuning
Dial in the exact 220-250mm extend position on a long-stroke assembly fixture without machining custom spacers or replacing the actuator.
Product Changeover Stops
Quickly shift the forward end stop by up to 30mm when routing different pallet sizes through a conveyor handling station.
Trial End Positions
Establish optimal feeding depth on a CNC lathe bar feeder by testing extend endpoints within the 30mm adjustment window before locking the nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X250-30SB the Right Cylinder?
Choose this 32mm bore actuator when you need a 220-250mm forward stroke and on-the-fly adjustability. If a fixed 250mm stroke is sufficient, a standard ACQ series cylinder suffices. For higher force, the next bore up (40mm) provides 628.3N push at 0.5MPa; for lighter duty, a 25mm bore yields 245.4N. Confirm your ordering essentials: 32mm bore, 250mm full stroke, 30mm 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 ACQJ32X250-30SB FAQ
This 32mm bore cylinder has a 250mm full stroke with a 30mm adjustable window, giving a usable extend range of 220-250mm. Force is identical to a standard ACQ: 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.
An external M12x1.25 threaded stop with a lock nut limits forward travel; it changes stroke length only, leaving piston area and force unchanged. The retract stroke is unaffected. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions, so use an external shock absorber for high-energy loads.
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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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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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