Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke300 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30B
The ACQJ32X300-30B is a double-acting JIS compact cylinder featuring a 32mm bore and a 300mm full stroke. As a long-stroke made-to-order variant exceeding the standard 100mm maximum, it incorporates an external male-threaded piston rod end (M14x1.5) for direct load coupling. It operates within 0.15-1.0 MPa pressure limits and reaches speeds of 30-500 mm/s.
An external M12x1.25 threaded stop with a lock nut restricts the outward movement, yielding a usable extend range of 270 to 300mm while leaving the retract stroke entirely unaffected. Because the piston area remains constant, output force is identical to a standard ACQ, delivering 402.1N push and 301.6N pull at 0.5 MPa. The unit relies on fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 300 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 ACQJ32X300-30B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 ACQJ32X300-30B Is Used
Prototype Fixture Positioning
Dial in exact extend end positions during prototype machining setups without machining new spacers or swapping cylinders.
Product Changeover Diverter
Adjust the pusher stroke on a packaging line diverter on-site to accommodate varying carton lengths quickly.
Long-Reach Clamp Tuning
Fine-tune the clamping reach on extended machinery arms where a 300mm stroke is required to clear large workpieces.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30B the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: stepping down to a 25mm bore yields 245.4N push force, while stepping up to a 40mm bore provides 628.3N at 0.5 MPa. If your end position never varies, a fixed-stroke ACQ cylinder is simpler and more compact. To order correctly, confirm the 32mm bore, 300mm full stroke, 30mm adjustment window, male M14x1.5 rod thread, and note this unit ships without a magnet. For load-holding safety, add an external rod lock, as air loss will cause drift.
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 ACQJ32X300-30B FAQ
This 32mm bore cylinder delivers 402.1N push and 301.6N pull at 0.5 MPa, 562.9N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The full stroke is 300mm, but the external adjuster allows you to set the extend end position anywhere within a 270 to 300mm usable range via a 30mm window.
No, the external M12x1.25 threaded stop only limits the extend stroke length; it does not alter piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at each end, not adjustable air cushions, so external shock absorbers are recommended for high-energy impacts.
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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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