Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke70 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50S
The AirTAC ACQJ32X70-50S is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. With a 70mm full stroke and a 50mm adjustment window, the usable extend range runs from 20mm up to 70mm. The retract stroke remains completely unaffected by this mechanism. Because the piston area stays constant, the output force is identical to a standard ACQ of the same bore.
This model delivers a push force of 402.1N at 0.5MPa and 562.9N at 0.7MPa. It features a 16mm piston rod, a PT1/8 port, and a female M8x1.25 rod-end thread. The M12x1.25 external adjuster allows on-machine end-position tuning without buying new parts. Fixed NBR elastomer bumpers decelerate the load at both ends, while the built-in magnet (-S) works with reed or solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 70 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 ACQJ32X70-50S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 ACQJ32X70-50S Is Used
Machining Fixture Stops
Dial in the exact extend position from 20 to 70mm on a CNC machining fixture to accommodate different raw material widths without fabricating custom stop blocks.
Carton Changeover Flaps
Adjust the end stroke on the fly during packaging line product changeovers to securely seal various carton dimensions using the external M12x1.25 lock nut.
Press Trial Positions
Test multiple engagement depths on an assembly press by tweaking the extend limit, ensuring perfect part mating before finalizing the mechanical setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50S the Right Cylinder?
When sizing this 32mm bore actuator, note the 402.1N push force at 0.5MPa. Stepping down to a 25mm bore yields 245.4N push, whereas moving up to a 40mm bore provides 628.3N. If your extend position never varies, a fixed-stroke ACQ cylinder is sufficient and simpler. To order this adjustable version, confirm the 32mm bore, 70mm full stroke, 50mm window, the -S magnet, and the 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 ACQJ32X70-50S FAQ
The usable extend range is 20-70mm (70mm full stroke minus the 50mm window). Force is identical to a standard ACQ: push is 402.1N and pull is 301.6N at 0.5MPa, push is 562.9N at 0.7MPa, and maximum push is 82kgf at 1.0MPa. The retract stroke is unaffected.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke, changing only the travel length, not the force. Fixed NBR elastomer bumpers decelerate the load at stroke ends. The included -S magnet is compatible with reed or solid-state switches.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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