Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke45 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30B
The AirTAC ACQJ40X45-30B is a double-acting, single-rod JIS compact cylinder featuring an external extend-stroke adjuster. An external threaded stop with a lock nut limits the outward travel, providing a usable extend range of 15 to 45 mm. The retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore.
This unit delivers 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. It uses a PT1/8 port and a 16 mm rod. The male M14x1.5 rod-end thread (-B option) couples directly to your load. Fixed elastomer bumpers handle end-of-stroke deceleration, while the body retains sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ40X45-30B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | 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 ACQJ40X45-30B Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC machining fixture during initial setup or when switching part families.
Packaging Diverter Arms
Modify the stroke length of a packaging line diverter arm to accommodate varying box sizes without changing hardware.
Laboratory Test Rigs
Establish trial end positions on a materials testing rig, allowing researchers to set precise extension limits per test parameters.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30B the Right Cylinder?
When sizing this 40 mm bore actuator, stepping down to a 32 mm bore yields 402.1 N push at 0.5 MPa, while stepping up to a 50 mm bore provides 981.8 N. If your application requires a fixed extend length that never varies, a standard ACQ cylinder will suffice and saves adjustment time. To order this adjustable version correctly, confirm the 40 mm bore, 45 mm full stroke, 30 mm window, the male M14x1.5 rod thread, and that no magnet (-S) is required.
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 ACQJ40X45-30B FAQ
The usable extend range is 15-45 mm (a 45 mm full stroke minus up to a 30 mm window). The retract stroke is unaffected. Force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
The external M12x1.25 threaded stop with a lock nut limits outward travel without altering piston area, so force remains unchanged. Fixed NBR elastomer bumpers decelerate the rod near stroke ends. A plain ACQ-type cylinder will drift on air loss, so add an external rod lock or pilot-operated check valve for fail-safe load holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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