Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50B 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 ACQJ40X200-50B
The AirTAC ACQJ40X200-50B is a double-acting, JIS compact cylinder built for long-stroke, made-to-order applications requiring precise extend positioning. It features a 40mm bore and a 200mm full stroke. An external M12x1.25 threaded stop with a lock nut limits the rod extension, yielding a usable extend range of 150 to 200mm. The retract stroke remains unaffected. Because the piston area is unchanged, force output is identical to a standard ACQ of this bore.
This variant includes a male M14x1.5 rod-end thread (-B) for direct load coupling and uses a PT1/8 port. It ships without a magnet, though the body retains sensor grooves for external reed or solid-state switches. Deceleration relies on fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. Operating pressure spans 0.15 to 1.0 MPa, and the proof pressure is 1.5 MPa.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50B |
|---|---|
| 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 ACQJ40X200-50B
| 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 ACQJ40X200-50B Is Used
Machining Fixture Stops
Dial in the exact extend position of a clamping fixture during product-changeover on a CNC line without swapping out cylinder hardware.
Transfer Diverters
Adjust the pusher extension distance on a packaging conveyor to handle varying box sizes on the fly, ensuring precise sorting.
Assembly Press Testing
Set trial end positions for a press operation during new product introduction, allowing rapid tweaking of the engagement depth.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50B the Right Cylinder?
This 40mm bore delivers 628.3N push and 527.8N pull at 0.5MPa. If your setup requires less force, consider the 32mm bore (402.1N push); for heavier demands, the 50mm bore offers 981.8N push. A standard fixed-stroke ACQ suffices if your end position never varies. When ordering, confirm the 200mm full stroke, the 50mm adjuster window, the male M14x1.5 rod thread, and the PT1/8 port. Note that this 200mm stroke exceeds the 100mm standard max for this bore, making it a long-stroke configuration.
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 ACQJ40X200-50B FAQ
At 0.5MPa it provides 628.3N push and 527.8N pull; at 0.7MPa push is 879.6N. Maximum push is 128kgf at 1.0MPa. The usable extend range is 150-200mm (200mm full stroke minus the 50mm adjustment window).
The M12x1.25 threaded stop with lock nut limits only the extend stroke length, meaning force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers for end-of-stroke deceleration, not an adjustable air cushion. Note that this model ships without a sensor magnet.
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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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