Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-10S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 35mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke35 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-10S
The AirTAC ACQJ40X35-10S is a double-acting JIS compact cylinder with a 40mm bore and 35mm full stroke. An external M12x1.25 threaded stop and lock nut restricts the extend endpoint, yielding a usable forward travel of 25 to 35mm. The return stroke remains at its standard length. Because the piston area is unchanged, output power matches a fixed-stroke ACQ.
This unit includes a built-in magnet (-S) for tracking with reed or solid-state switches. It features a 16mm rod, PT1/8 port, and fixed NBR elastomer bumpers at both ends for end-of-travel deceleration. Operating pressure spans 0.15 to 1.0 MPa across a -20 to +70 C range.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-10S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 35 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 ACQJ40X35-10S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 ACQJ40X35-10S Is Used
Machining Fixture Stops
Dial in the exact 25-35mm clamping reach on a CNC fixture without swapping cylinders when raw material thickness varies.
Carton Forming Adjustments
Tune the extend position on packaging folder-sealers to handle different box heights on the fly.
Assembly Press Tuning
Set precise pressing depth for electronic connector seating, testing the ideal endpoint before finalizing the setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X35-10S the Right Cylinder?
This 40mm bore generates 628.3N push and 527.8N pull at 0.5 MPa. If your layout needs less force, the 32mm bore provides 402.1N push, while stepping up to 50mm yields 981.8N. A standard fixed-stroke ACQ suffices if your endpoint never requires field adjustment. When ordering, confirm the 35mm base travel, 10mm adjuster window, -S magnet, and female M8x1.25 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 ACQJ40X35-10S FAQ
At 0.5 MPa, push force is 628.3N and pull is 527.8N. At 0.7 MPa, push is 879.6N, with a maximum push of 128kgf at 1.0 MPa. The full stroke is 35mm with a 10mm adjuster window, meaning the usable extend range is 25 to 35mm.
No, the adjuster only limits the forward travel distance, not the piston area, so force remains identical to a standard ACQ. The retract stroke is completely unaffected. End-of-travel energy is managed by fixed elastomer bumpers, not adjustable air cushions.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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