Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30 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 ACQJ40X45-30
The AirTAC ACQJ40X45-30 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke from 15 mm up to the full 45 mm directly on your machinery without swapping components. The retract stroke remains completely unaffected by this mechanism.
Because the adjuster alters only the travel length and not the piston area, output force stays identical to a standard ACQ of this bore. This 40 mm bore unit delivers 628.3 N of push force at 0.5 MPa, features a 16 mm rod, and relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration. It operates effectively between 0.15 and 1.0 MPa.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30 |
|---|---|
| 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 ACQJ40X45-30
| 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 ACQJ40X45-30 Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC machining center to accommodate raw material thickness variations without manufacturing new fixture stops.
Packaging Product Changeover
Rapidly adjust the extend endpoint on a packaging line when switching between different carton sizes, using the external lock nut to set the new position.
Assembly Press Positioning
Establish trial end positions for pressing bearings on an assembly line, allowing operators to tweak the 15 to 45 mm stroke window until the optimal insertion depth is found.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X45-30 the Right Cylinder?
When sizing this actuator, consider the 32 mm bore option if your load requires less force, as it provides 402.1 N push at 0.5 MPa. If your application demands greater thrust, stepping up to the 50 mm bore yields 981.8 N push at 0.5 MPa. If your end position never varies, a fixed-stroke ACQ cylinder is sufficient and simpler. To order this adjustable version, confirm the 40 mm bore, 45 mm full stroke, 30 mm adjustment window, female rod-end thread M8x1.25, and PT1/8 porting. Note this specific unit ships without a magnet.
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 ACQJ40X45-30 FAQ
This 40 mm bore cylinder provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The full stroke is 45 mm, and with the 30 mm adjustment window, the usable extend range is 15 to 45 mm.
The external M12x1.25 threaded stop with lock nut mechanically limits how far the rod extends, shortening the stroke without changing the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration and will not hold a load if air pressure is lost; use an external rod lock for fail-safe holding.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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