Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10S 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 ACQJ40X45-10S
The AirTAC ACQJ40X45-10S is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a 35-45mm usable extend range from the 45mm full stroke, adjustable directly on your machine without swapping parts. The retract stroke remains completely unaffected.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore, delivering 628.3N push at 0.5MPa. This 40mm bore version includes a 16mm rod, a PT1/8 port, and a built-in magnet for electronic or reed switches. It relies on fixed NBR elastomer bumpers at each end rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10S |
|---|---|
| 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 ACQJ40X45-10S
| 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 ACQJ40X45-10S Is Used
Machining Fixture Stops
Dial in the exact 35-45mm extend position for varying part sizes on a CNC machining fixture without machining new spacers.
Packaging Changeover
Quickly reset the extend endpoint during product family changeovers on a packaging line to accommodate different carton depths.
Prototype Positioning
Establish optimal end positions through trial runs on prototype assembly rigs, fine-tuning the stroke in 1mm increments via the M12x1.25 adjuster.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-10S the Right Cylinder?
If you need less push, the 32mm bore provides 402.1N at 0.5MPa, while the 50mm bore steps up to 981.8N if your application requires more force. Choose this 40mm model when you need precise 35-45mm extend tuning. If a fixed 45mm stroke always works, a standard ACQ series cylinder is sufficient. To order, confirm the 40mm bore, 45mm full stroke, 10mm window, the S magnet option, and your required rod-end 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 ACQJ40X45-10S FAQ
This 40mm bore cylinder provides 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The 10mm adjustable window gives a usable extend range of 35-45mm out of the 45mm full stroke.
An external M12x1.25 threaded screw with a lock nut mechanically limits how far the rod extends, shortening the stroke without changing piston area, so force remains identical to a standard ACQ. Deceleration relies on fixed NBR elastomer bumpers at both ends, not adjustable air cushions, so external shock absorbers are recommended for high-energy loads.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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