Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40S 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 ACQJ40X200-40S
The ACQJ40X200-40S is a double-acting JIS compact cylinder with an external M12x1.25 threaded stop and lock nut that limits the extend stroke. You get a usable extension range of 160 to 200 mm, while the retract distance remains completely unaffected. Because the piston area stays the same, force equals a standard ACQ of this bore: 628.3 N push and 527.8 N pull at 0.5 MPa.
This long-stroke made-to-order variant exceeds the 100 mm standard maximum for a 40 mm bore. It features a fixed NBR elastomer bumper at each end for deceleration and a built-in piston magnet for position sensing. The -S magnet is fully compatible with both reed and electronic solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40S |
|---|---|
| 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 ACQJ40X200-40S
| 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 ACQJ40X200-40S Is Used
Machining Fixture Stops
Dial in the exact extend position for varying part heights on a CNC lathe loader without machining custom spacers.
Carton Changeover
Rapidly adjust the pressing height during packaging line product changeovers using the external lock nut.
Assembly Press Tuning
Find the optimal trial end position for pressing bearings during new machine setup and commissioning.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40S the Right Cylinder?
If your application needs less push force, the 32 mm bore provides 402.1 N at 0.5 MPa; for heavier loads, the 50 mm bore yields 981.8 N. A fixed-stroke ACQ is sufficient if your end position never requires tweaking. To order, confirm the 40 mm bore, 200 mm full stroke, 40 mm adjustment 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 ACQJ40X200-40S FAQ
Force is identical to a standard ACQ: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and 128 kgf max push at 1.0 MPa. The full stroke is 200 mm with a 40 mm window, giving an adjustable extend range of 160 to 200 mm.
An external M12x1.25 threaded stop with a lock nut limits the extend distance without changing the piston area or force. Retract remains unaffected. Deceleration is handled by a fixed elastomer bumper, not an adjustable air cushion; for high energy loads, use an external shock absorber.
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1-Year Warranty
Covers non-human-caused product damage.
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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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