Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke200 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40
The ACQJ40X200-40 is a double-acting JIS compact cylinder built for applications requiring a long 200mm stroke with on-machine extend adjustability. An external M12x1.25 threaded stop and lock nut lets you fine-tune the forward end position within a 160-200mm usable range. The retract stroke remains completely unaffected by this adjustment. Because the piston area stays constant, output force equals a standard ACQ of the same bore.
This made-to-order variant extends past the 100mm standard maximum for a 40mm bore, utilizing the 32-100mm long-stroke capacity up to 300mm. It features a 16mm piston rod, an M8x1.25 female rod-end thread, and a PT1/8 port. The body incorporates fixed elastomer NBR bumpers at both ends for end-of-stroke deceleration, plus integrated magnetic-switch grooves, though this specific SKU ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 200 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 ACQJ40X200-40
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 ACQJ40X200-40 Is Used
Machining Fixture Stops
Dial in the exact clamping extension on a CNC lathe bar puller, allowing operators to tweak the 160-200mm forward reach for different raw material lengths without swapping cylinders.
Packaging Diverter Arms
Adjust the stroke length on a packaging line sorter to accommodate varying carton widths, ensuring the diverter pushes precisely to the correct lane without reprogramming the machine.
Assembly Press Positioning
Set trial end positions on an electronic component insertion press, fine-tuning the downward travel limit during product changeovers to prevent damage to delicate PCBs.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40 the Right Cylinder?
When sizing this actuator, consider the 628.3N push force at 0.5MPa; stepping down to a 32mm bore yields 402.1N, while a 50mm bore provides 981.8N. If your extend endpoint never varies, a fixed-stroke ACQ cylinder is simpler and avoids the adjuster overhang. For this model, confirm the 40mm bore, 200mm full stroke, 40mm window, female rod thread, and note that no magnet is installed. Remember that a standard compact cylinder will drift and lose its load if air pressure drops, so specify an external rod lock for fail-safe holding.
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 ACQJ40X200-40 FAQ
The usable extend range is 160-200mm (200mm full stroke minus up to 40mm). Force is identical to a standard ACQ: 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, with a maximum push of 128kgf at 1.0MPa.
The M12x1.25 external threaded stop with lock nut limits only the extend length, leaving retract unaffected and changing stroke length rather than force. The cylinder uses fixed NBR bumpers, not adjustable cushions, and will not hold its load on air loss; use an external rod lock for fail-safe positioning.
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Related AirTAC ACQJ Compact Cylinders
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