Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50S 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 ACQJ32X300-50S
The ACQJ32X300-50S is a double-acting, single-rod JIS compact cylinder engineered as a long-stroke, made-to-order variant for bore 32. It features an external M12x1.25 threaded stop with a lock nut on the extend side. This mechanism lets you shorten the outward travel by up to 50 mm, yielding a usable extension range of 250 to 300 mm. The return stroke remains fixed at its full length. Because the piston area stays constant, output force equals that of a standard ACQ unit.
Operating pressure spans 0.15 to 1.0 MPa, while the fixed NBR elastomer bumper at each end decelerates the motion near the end positions. Equipped with a built-in magnet (-S), the unit supports both reed and solid-state sensing via its magnetic-switch grooves. The Ø16 mm piston rod features a female M8x1.25 end thread, and air connects via a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50S |
|---|---|
| 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 ACQJ32X300-50S
| 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 ACQJ32X300-50S Is Used
Machining Fixture Tuning
Dial in the exact clamping reach on a CNC machining center during part-changeover without fabricating custom spacers.
Sorting Diverter Setup
Adjust the extension length of a package routing gate on the fly to accommodate varying box dimensions on a single line.
Press Trial Positions
Test different engagement depths on an assembly press to find the optimal end position before locking the stop nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50S the Right Cylinder?
This 32 mm bore actuator delivers 402.1 N of push and 301.6 N of pull at 0.5 MPa. If your setup requires less thrust, stepping down to a 25 mm bore yields 245.4 N push; conversely, moving up to a 40 mm bore provides 628.3 N push. A standard fixed-stroke ACQ is sufficient if you never need to alter the end position after installation. When ordering, verify the 300 mm full stroke, the 50 mm adjuster window, the -S magnet option, 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 ACQJ32X300-50S FAQ
It generates 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The usable extend range is 250 to 300 mm, created by shortening the 300 mm full stroke by up to the 50 mm window.
No, the external M12x1.25 stop only limits travel distance, not piston area, so force remains identical to a standard ACQ. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion.
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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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