Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100
The AirTAC ACQJ40X300-100 is a double-acting, single-rod JIS compact cylinder built for specialized long-stroke applications. Featuring a 40mm bore and a 300mm total stroke, this made-to-order variant extends past the 100mm standard maximum. An external threaded stop with a lock nut restricts the extend end position, yielding a usable forward travel range of 200 to 300mm. The retract movement remains completely unaffected by this mechanism.
Because the piston area is unchanged, output force matches a standard ACQ exactly, delivering 628.3N push and 527.8N pull at 0.5MPa. The unit relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Sensor grooves are integrated into the body, though this specific configuration ships without a magnet. The PT1/8 port and Ø16mm rod ensure robust pneumatic performance.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 300 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 ACQJ40X300-100
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 ACQJ40X300-100 Is Used
Machining Center Changeover
Dial in the extend stop from 200 to 300mm on CNC fixtures to accommodate varying raw material lengths without fabricating new mechanical hard stops.
Packaging Line Diverter
Fine-tune the actuation end point on the fly to alter package routing distances, ensuring proper handoff to downstream labeling machinery.
Assembly Press Setup
Establish trial end positions for pressing operations across multiple product variants, relying on the fixed NBR bumper to absorb end impacts.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X300-100 the Right Cylinder?
Selecting this bore yields 879.6N of thrust at 0.7MPa. If your task requires less power, dropping to a 32mm bore provides 402.1N push at 0.5MPa, whereas scaling up to a 50mm bore offers 981.8N. A standard fixed-stroke ACQ is sufficient if your end position never varies. When ordering, confirm the 40mm bore, 300mm full stroke, 100mm adjuster window, female M8x1.25 rod thread, and whether you need the S magnet option for electronic or reed switch sensing.
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 ACQJ40X300-100 FAQ
This long-stroke cylinder provides 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 total stroke is 300mm, but the external adjuster allows you to shorten the extend travel by up to 100mm, giving a usable extend range of 200 to 300mm.
The adjuster only limits forward travel; it does not alter piston area, so force remains identical to a standard ACQ. Deceleration is managed by a fixed elastomer bumper at each end. For high-speed or heavy loads, an external shock absorber is recommended, and a separate rod lock is needed to hold loads on air loss.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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