Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke40 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10SB
The AirTAC ACQJ40X40-10SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You get a usable extend range of 30-40mm (full 40mm stroke minus the 10mm adjustment window), while the retract stroke remains completely unaffected. Because the piston area stays constant, output force equals a standard ACQ of the same bore.
This unit includes a male M14x1.5 rod-end thread for direct load coupling and a built-in piston magnet (-S) for position sensing. It uses a PT1/8 port and relies on fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable pneumatic cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 40 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 ACQJ40X40-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 ACQJ40X40-10SB Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture without machining custom spacers, accommodating varied part heights on the fly.
Packaging Machine Changeover
Rapidly adjust the extend endpoint for different carton sizes during format changeovers, keeping downtime to a minimum.
Assembly Press Positioning
Set trial end positions for pressing or seating components precisely, allowing operators to fine-tune insertion depth safely.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X40-10SB the Right Cylinder?
Providing 628.3N push and 527.8N pull at 0.5MPa, this 40mm bore sits neatly between the 32mm (402.1N push) and 50mm (981.8N push) sizes. If your application never requires end-position tweaks, a fixed-stroke ACQ will suffice. When ordering, confirm the 40mm full stroke, 10mm window, S magnet, B male rod thread, and PT1/8 porting.
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 ACQJ40X40-10SB FAQ
It delivers 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 usable extend range is 30-40mm (a 40mm full stroke minus the 10mm window).
The M12x1.25 external stop screw mechanically limits the extend length without altering piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers, and because it lacks a rod lock, the load will drift on air loss unless an external pilot check valve is used.
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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