Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke50 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30SB
The AirTAC ACQJ32X50-30SB is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend end position. With a 50 mm full stroke and a 30 mm adjustment window, the usable extend range is 20-50 mm. The retract stroke remains completely unaffected by this mechanism. Because the piston area stays the same, output force is identical to a standard ACQ of this bore.
This 32 mm bore unit pushes 402.1 N and pulls 301.6 N at 0.5 MPa, utilizing a fixed elastomer bumper at each end for end-of-stroke deceleration. The -S option includes a piston magnet compatible with reed or electronic solid-state switches, while the -B option provides a male M14x1.5 rod-end thread for direct load coupling. Operating pressure ranges from 0.15 to 1.0 MPa.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 50 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 ACQJ32X50-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 ACQJ32X50-30SB Is Used
Machining Fixture Clamping
Dial in the exact clamping extension on a CNC fixture without machining custom spacers, accommodating different raw material thicknesses on the fly.
Packaging Changeover Stops
Rapidly reposition the extend end stop for a new carton size on a packaging line, using the external M12x1.25 adjuster thread to fine-tune the push distance.
Assembly Press Positioning
Test and set trial end positions for pressing bearings on an assembly line, adjusting the stroke from 20 mm up to the full 50 mm as needed for specific parts.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-30SB the Right Cylinder?
When sizing this 32 mm bore actuator, stepping down to a 25 mm bore yields 245.4 N push force at 0.5 MPa, whereas stepping up to a 40 mm bore provides 628.3 N. If your machine setup never requires altering the extend endpoint, a fixed-stroke ACQ cylinder will suffice without needing the external adjuster. To order this adjustable variant correctly, confirm the 32 mm bore, 50 mm full stroke, 30 mm window, PT1/8 port, plus the S magnet and B male M14x1.5 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 ACQJ32X50-30SB FAQ
This 32 mm bore cylinder delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa, with a push force of 562.9 N at 0.7 MPa. The maximum push force is 82 kgf at 1.0 MPa. It has a 50 mm full stroke with a 30 mm adjustment window, allowing a usable extend range of 20-50 mm.
No, the external stop only limits how far the rod extends, leaving the piston area and force unchanged from a standard ACQ. The cylinder relies on a fixed elastomer bumper for deceleration, not an adjustable air cushion. Note that a plain compact cylinder will not hold its load if air pressure is lost; use an external rod lock or pilot-operated check valve for fail-safe holding.
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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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