Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20B 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 ACQJ40X200-20B
The ACQJ40X200-20B is a double-acting, single-rod JIS compact cylinder engineered for applications requiring precise extend-end positioning. Featuring a 40 mm bore and a 200 mm full stroke, this long-stroke variant incorporates an external M12x1.25 threaded stop with a lock nut. This mechanism allows you to fine-tune the extend travel down by 20 mm, yielding a usable extension range of 180 to 200 mm without swapping parts. The retract stroke remains completely unaffected.
Because the adjuster only limits travel length, the piston area stays constant, delivering force identical to a standard ACQ of this bore: 628.3 N push and 527.8 N pull at 0.5 MPa. The unit includes a male M14x1.5 rod-end thread (-B) for direct load coupling, PT1/8 ports, and fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration. Operating pressure spans 0.15 to 1.0 MPa, and the body retains sensor grooves, though this specific SKU ships without a magnet. Since 200 mm exceeds the 100 mm standard maximum for this bore, it is provided as a made-to-order long-stroke unit.
When sizing this actuator, compare its 628.3 N push force at 0.5 MPa against the adjacent bores: the 32 mm bore yields 402.1 N, while the 50 mm bore provides 981.8 N. If your extend endpoint never varies, a fixed-stroke ACQ40X200 will suffice and simplifies setup. To order, confirm the 40 mm bore, 200 mm full stroke, 20 mm adjustment window, the male rod thread (-B), and whether you require the -S magnet for solid-state or reed switch sensing. Note that a plain compact cylinder will not hold a load on air loss; for fail-safe holding, specify an external rod lock or pilot-operated check valve.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20B |
|---|---|
| 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 ACQJ40X200-20B
| 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 ACQJ40X200-20B Is Used
Machining Fixture Stops
Dial in the extend stop on a CNC machining fixture to accommodate varying raw part thicknesses without machining custom spacers.
Packaging Changeover
Adjust the extend position on a packaging line carton sealer during product format changes, saving setup time between different box sizes.
Prototype Press Testing
Test trial end positions on a laboratory press by tweaking the external M12x1.25 adjuster to find the optimal compression distance.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20B the Right Cylinder?
When sizing this actuator, compare its 628.3 N push force at 0.5 MPa against the adjacent bores: the 32 mm bore yields 402.1 N, while the 50 mm bore provides 981.8 N. If your extend endpoint never varies, a fixed-stroke ACQ40X200 will suffice and simplifies setup. To order, confirm the 40 mm bore, 200 mm full stroke, 20 mm adjustment window, the male rod thread (-B), and whether you require the -S magnet for solid-state or reed switch sensing. Note that a plain compact cylinder will not hold a load on air loss; for fail-safe holding, specify an external rod lock or pilot-operated check valve.
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 ACQJ40X200-20B FAQ
It delivers 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 usable extend range is 180-200 mm (200 mm full stroke minus up to 20 mm via the external stop).
No. The adjuster limits extend length only, leaving the retract stroke unaffected. Because the piston area is unchanged, force remains identical to a standard ACQ. The unit relies on fixed elastomer bumpers for deceleration and ships without a magnet, though the body retains sensor grooves for adding switches.
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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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