Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke150 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30
The ACQJ40X150-30 is a double-acting JIS compact cylinder built for applications requiring a variable extend end position. As a long-stroke made-to-order variant, it features a 150 mm total stroke with an external M12x1.25 threaded stop and lock nut. This mechanism allows you to fine-tune the extend travel anywhere within a 120 to 150 mm usable range directly on the machine, while the retract stroke remains completely unaffected.
Because the adjuster only limits travel length and not the piston area, output force stays identical to a standard ACQ of this bore. The 40 mm bore generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The body incorporates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration and includes magnetic-switch grooves, though this specific SKU ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 150 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 ACQJ40X150-30
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 ACQJ40X150-30 Is Used
Machining Center Changeovers
Adapts clamping extensions on CNC fixtures during product family changeovers, letting operators dial in the exact 120 to 150 mm reach without machining new stop collars.
Variable Carton Forming
Accommodates different box depths on packaging lines by tweaking the extend endpoint on the fly, ensuring precise flap folding across varied packaging dimensions.
Assembly Press Stroke Setup
Enables safe trial end positions for pressing sub-components, allowing engineers to limit the 150 mm travel to prevent over-travel during initial equipment commissioning.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X150-30 the Right Cylinder?
Selecting this model provides a 40 mm bore with a 150 mm total stroke and a 30 mm adjustment window, yielding an effective extend range of 120 to 150 mm. If your setup never requires end-position tuning, a fixed-stroke ACQ cylinder is sufficient. When sizing force, note that stepping down to a 32 mm bore yields 402.1 N of push at 0.5 MPa, while stepping up to a 50 mm bore provides 981.8 N. To order, confirm the 40 mm bore, 150 mm full stroke, 30 mm window, the default female M8x1.25 rod-end thread, and PT1/8 porting. Since this unit lacks the S magnet, add an external sensor bracket if detection 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 ACQJ40X150-30 FAQ
This 40 mm bore cylinder delivers 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 full stroke is 150 mm, but the external stop provides a 30 mm adjustment window, resulting in a usable extend range of 120 to 150 mm.
An external M12x1.25 threaded screw with a lock nut limits the extend travel without altering piston area, meaning force remains identical to a standard ACQ. The cylinder relies on fixed NBR elastomer bumpers for deceleration rather than adjustable air cushions. Because it is a standard compact cylinder, it will not hold a load if air pressure is lost; use an external rod lock or pilot-operated check valve for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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