Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke75 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10S
The AirTAC ACQJ40X75-10S is a double-acting JIS compact cylinder featuring a 40mm bore and 75mm full stroke. An external threaded stop with a lock nut limits the extend end position, providing a usable forward range of 65 to 75mm. The retract distance remains completely unaffected by this adjustment. Because the piston area is unchanged, output force equals that of a standard ACQ unit.
This model includes a 16mm piston rod, a PT1/8 port, and a female M8x1.25 rod-end thread. The integrated piston magnet (-S) supports both reed and electronic solid-state sensors fitted into the body grooves. Fixed elastomer NBR bumpers handle end-of-stroke deceleration, operating effectively across a 30 to 500 mm/s speed range.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 75 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 ACQJ40X75-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 ACQJ40X75-10S Is Used
Machining Fixture Clamps
Dial in the exact 65 to 75mm clamping depth on a CNC fixture without machining custom spacers, allowing rapid accommodation of varying raw material thicknesses.
Product Changeover Stops
Adjust the external rod stop to switch package sizes on a packaging conveyor line, securely locking the new extend position with the jam nut in seconds.
Assembly Press Tonnage
Set trial end positions for pressing bearings on an assembly line, using the fixed bumper to absorb the 879.6N peak force at 0.7MPa without needing external cushions.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X75-10S the Right Cylinder?
Selecting this 40mm bore yields 628.3N push and 527.8N pull at 0.5MPa. If your application requires less force, the adjacent 32mm bore provides 402.1N push, whereas stepping up to a 50mm bore offers 981.8N push. Choose this adjustable version when exact forward positioning varies between setups; if a fixed depth is always required, a standard ACQ cylinder suffices. Confirm your ordering essentials: 40mm bore, 75mm full stroke, 10mm window, S magnet, and the default female 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 ACQJ40X75-10S FAQ
The usable forward range is 65-75mm (75mm full stroke minus the 10mm window). The retract stroke is unaffected. Force is identical to a standard ACQ: push 628.3N, pull 527.8N at 0.5MPa, push 879.6N at 0.7MPa, and a maximum push of 128kgf at 1.0MPa.
The external M12x1.25 threaded stop mechanically limits how far the rod extends, shortening the forward stroke only. It does not alter piston area, so force remains unchanged. Fixed elastomer bumpers decelerate the load at stroke end, and the -S magnet works with reed or electronic switches.
Authorized Export Seller
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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