Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke45 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-30SB
The AirTAC ACQJ32X45-30SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend travel from 15 mm up to the full 45 mm directly on the machine without swapping parts, while the retract stroke remains completely unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This 32 mm bore model includes a built-in piston magnet (-S) compatible with reed or solid-state switches, and a male M14x1.5 piston rod end (-B) for direct load coupling. It pushes with 402.1 N at 0.5 MPa and features a fixed NBR elastomer bumper at each end to decelerate the load near stroke limits.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 45 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 ACQJ32X45-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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 ACQJ32X45-30SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining center during initial setup or when swapping part fixtures without machining new stop spacers.
Carton Size Changeover
Adjust the extend tamping or sealing head position on packaging lines to accommodate varying box heights quickly on the fly.
Bending Press Trial
Set and test varying material bend depths on a small metal forming press to find the exact end position before locking the adjuster nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-30SB the Right Cylinder?
If you need less push force, the 25 mm bore version provides 245.4 N at 0.5 MPa, whereas stepping up to the 40 mm bore yields 628.3 N for heavier loads. A fixed-stroke ACQ is sufficient if your end position never varies. To order this adjustable unit correctly, confirm the 32 mm bore, 45 mm full stroke, 30 mm 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 ACQJ32X45-30SB FAQ
The force is identical to a standard ACQ: 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 15 to 45 mm, shortened from the 45 mm full stroke by up to a 30 mm window.
The external M12x1.25 threaded stop and lock nut limit only the extend length, meaning the force stays unchanged since the piston area is not altered. Deceleration is handled by a fixed elastomer bumper at each end, not an adjustable air cushion, so you may need 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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Related AirTAC ACQJ Compact Cylinders
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