Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-20SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 35mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke35 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-20SB
The AirTAC ACQJ32X35-20SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend stroke. You get a usable extend range of 15 to 35 mm, set by subtracting the 20 mm window from the 35 mm full stroke. The retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore: 402.1 N push and 301.6 N pull at 0.5 MPa. The unit incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration and includes a male M14x1.5 piston rod thread for direct load coupling. The built-in magnet (-S) supports both reed and solid-state electronic switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-20SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 35 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 ACQJ32X35-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×35 | 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 ACQJ32X35-20SB Is Used
Fixture Setup Tuning
Dial in the exact clamping extend position on machining fixtures without machining new spacers or changing cylinder hardware.
Product Changeover Stops
Quickly reposition the extend end stop on packaging lines when switching between different package sizes or carton formats.
Trial End Positions
Establish optimal pressing or testing depths on laboratory equipment by fine-tuning the stroke extension in the field.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X35-20SB the Right Cylinder?
For sizing context, dropping to a 25 mm bore lowers the push force to 245.4 N at 0.5 MPa, while stepping up to a 40 mm bore raises it to 628.3 N. If your application never requires end-position tuning, a fixed-stroke ACQ32 cylinder is sufficient. To order this adjustable version correctly, confirm the 32 mm bore, 35 mm full stroke, 20 mm adjuster window, -S magnet, and -B male 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 ACQJ32X35-20SB FAQ
The usable extend range is 15-35 mm (35 mm full stroke minus the 20 mm window). Force is identical to a standard ACQ32: push is 402.1 N and pull is 301.6 N at 0.5 MPa, push is 562.9 N at 0.7 MPa, and maximum push is 82 kgf at 1.0 MPa. The external adjuster thread is M12x1.25.
No, the external stop alters stroke length only, so force remains unchanged. The cylinder uses fixed elastomer bumpers, not adjustable air cushions. Note that a plain cylinder does not hold its load on air loss; for fail-safe holding, use an external rod lock or pilot-operated check valve.
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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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