Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50SB 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 ACQJ32X70-50SB
The AirTAC ACQJ32X70-50SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts the extend stroke. You can fine-tune the forward end position directly on your machinery, yielding a usable extend span of 20 to 70 mm out of the 70 mm full stroke. The retract movement remains completely unaffected by this adjustment.
Because the piston area stays the same, output force equals that of a standard ACQ counterpart, delivering 402.1 N push and 301.6 N pull at 0.5 MPa. This unit includes a male M14x1.5 rod end and a built-in magnet compatible with reed or solid-state switches. Fixed NBR elastomer bumpers absorb impact at both ends, functioning effectively within a 0.15 to 1.0 MPa operating pressure range.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50SB |
|---|---|
| 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 ACQJ32X70-50SB
| 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 ACQJ32X70-50SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC machining center during product-changeover, shortening the extend up to 50 mm to accommodate different part heights.
Carton Sealing Flaps
Adjust the folding arm position on packaging lines without swapping hardware, ensuring precise flap closure across various box dimensions.
Assembly Press Stops
Set trial end positions for pressing bearings on automated lines, tweaking the 20 to 70 mm forward travel to prevent over-travel and damage.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X70-50SB the Right Cylinder?
If your application only needs 301.6 N pull at 0.5 MPa, the smaller bore 25 version provides a more compact footprint, whereas the bore 40 unit steps up to 628.3 N push for heavier fixtures. A fixed-stroke ACQ is sufficient when your extend target never varies. For this ACQJ32X70-50SB configuration, verify the 32 mm bore, 70 mm full stroke, 50 mm window, male rod thread, and magnet options to match your assembly.
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 ACQJ32X70-50SB FAQ
It delivers 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, with a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 20 to 70 mm (a 50 mm window off the 70 mm full stroke). The piston rod is 16 mm with a male M14x1.5 thread, and the external adjuster uses an M12x1.25 thread.
No, the external stop changes only the forward travel distance, not the piston area, so force remains identical to a standard ACQ. Retract stroke is unaffected. Deceleration relies on fixed NBR elastomer bumpers at both ends, not adjustable air cushions. Note that a plain cylinder does not hold its load on air loss; use an external rod lock for fail-safe holding.
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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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