Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40 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 ACQJ32X45-40
The AirTAC ACQJ32X45-40 is a double-acting JIS compact cylinder featuring an external M12x1.25 threaded stop with a lock nut that restricts the extend stroke. You can tune the outward travel from 5mm up to the full 45mm directly on your machinery, while the retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ equivalent of this bore size.
Operating pressure spans 0.15-1.0 MPa with a velocity range of 30-500 mm/s. The unit incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body includes sensor grooves, but this specific configuration ships without a magnet. It uses a PT1/8 port and a female M8x1.25 rod-end thread on a 16mm diameter rod.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40 |
|---|---|
| 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 ACQJ32X45-40
| 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 ACQJ32X45-40 Is Used
Machining Fixture Calibration
Dial in the exact 5-45mm extend position for varying part heights on a CNC lathe without machining custom spacers.
Carton Forming Stops
Adapt sealing head extension depth on the fly during packaging format changeovers to handle different box sizes.
Press Tonnage Setup
Establish precise lower dead points on light assembly presses during initial tool setup or prototype trials.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X45-40 the Right Cylinder?
When sizing this 32mm bore actuator, dropping to a 25mm bore reduces the 0.5 MPa push force to 245.4 N, whereas stepping up to a 40mm bore increases it to 628.3 N. If your application never requires end-position adjustments, a fixed-stroke ACQ cylinder provides the same holding force in a simpler package. To order this adjustable version correctly, confirm the 32mm bore, the 45mm full stroke, the 40mm adjustment window, the female rod thread, and whether you need the S magnet option for electronic or reed switch sensing.
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 ACQJ32X45-40 FAQ
The usable extend range is 5-45mm (a 45mm full stroke minus up to a 40mm window). 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 external M12x1.25 adjuster with lock nut limits only the extend length, leaving the retract stroke unchanged. The cylinder uses fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. Also, a plain ACQ-type cylinder will drift if air pressure is lost; use an external rod lock or pilot-operated check valve for fail-safe load holding.
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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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