Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30S 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 ACQJ40X45-30S
The AirTAC ACQJ40X45-30S is a double-acting JIS compact cylinder featuring a 40mm bore and a 45mm base stroke. An external M12x1.25 threaded stop with a lock nut limits the extend end position, giving a usable forward range of 15-45mm. You tune this forward travel directly on the machine without swapping parts, while the retract stroke stays completely unaffected.
Because the piston area remains standard, output force equals a regular ACQ of identical size: 628.3N push and 527.8N pull at 0.5MPa, or 879.6N push at 0.7MPa. The unit integrates fixed NBR elastomer bumpers at both ends for end-of-travel deceleration, and the built-in -S magnet supports reed or solid-state sensors via the body grooves.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30S |
|---|---|
| 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 ACQJ40X45-30S
| 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 ACQJ40X45-30S Is Used
Changeover Stops
Set precise extend endpoints during product format changes on packaging lines without machining new spacers.
Trial End Positions
Dial in the exact forward clamping depth on machining fixtures during initial prototype runs safely.
Variable Pressing Force
Adjust the downward travel distance on light assembly presses to accommodate different material thicknesses.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30S the Right Cylinder?
Choosing this 40mm bore provides 628.3N push at 0.5MPa. If your application needs less force, the smaller 32mm bore yields 402.1N push; for heavier demands, the 50mm bore offers 981.8N push. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 40mm bore, 45mm full stroke, 30mm adjuster window, -S magnet, and the default female M8x1.25 rod thread with PT1/8 ports.
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 ACQJ40X45-30S 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 full stroke is 45mm with a 30mm window, allowing an adjustable extend range of 15-45mm.
The external M12x1.25 adjuster screw mechanically limits the forward extension distance, leaving retract travel untouched. Force remains identical to a standard ACQ because the piston area is unchanged. Fixed elastomer bumpers handle end-of-stroke deceleration, and the -S magnet works with reed or solid-state 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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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