Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30S 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 ACQJ32X300-30S
The AirTAC ACQJ32X300-30S is a double-acting, single-rod JIS compact cylinder built for specialized long-stroke applications. This made-to-order variant features a 300 mm stroke, exceeding the 100 mm standard maximum for a 32 mm bore. An external threaded stop with a lock nut limits the EXTEND end position, giving you a usable extend range of 270 to 300 mm. The RETRACT stroke remains completely unaffected. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
Operating at 0.15-1.0 MPa, the unit delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa. It features a 16 mm piston rod, a PT1/8 port, and fixed elastomer NBR bumpers at both ends for end-of-stroke deceleration. The -S suffix indicates a built-in piston magnet compatible with reed or electronic solid-state switches. The external adjuster utilizes an M12x1.25 thread.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30S |
|---|---|
| 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 ACQJ32X300-30S
| 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 ACQJ32X300-30S Is Used
Product-Changeover Stops
Adapt pressing or clamping end positions on a machining line instantly when switching between part families, using the external stop to dial in the new stroke without replacing cylinders.
Long-Reach Material Handling
Index or push parts across a 300 mm span on a conveyor system, fine-tuning the final push distance by up to 30 mm to accommodate varying package widths on the fly.
Trial End Positions
Dial in prototype actuation depths on testing rigs by adjusting the extend limit externally, allowing rapid iteration of end positions without disassembling the fixture.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-30S the Right Cylinder?
For sizing context: a 25 mm bore yields 245.4 N push @0.5 MPa, while a 40 mm bore provides 628.3 N, making this 32 mm bore an optimal middle ground at 402.1 N. If your machine never requires end-position adjustments, a fixed-stroke ACQ cylinder will suffice and simplify maintenance. When ordering this adjustable variant, confirm the 32 mm bore, 300 mm full stroke, -30 mm window, -S magnet, and female M8x1.25 rod-end 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 ACQJ32X300-30S FAQ
It delivers a push force of 402.1 N and a pull force of 301.6 N at 0.5 MPa (562.9 N push at 0.7 MPa), with a maximum push of 82 kgf at 1.0 MPa. The full stroke is 300 mm with a -30 mm adjustable window, giving a usable extend range of 270-300 mm. It features a 16 mm rod, PT1/8 port, and an M12x1.25 adjuster thread.
No, the external stop alters only the extend stroke length, not the piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer NBR bumpers at both ends for deceleration rather than adjustable air cushions. For high-speed or high-energy loads, consider adding an external shock absorber or slowing the approach.
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Related AirTAC ACQJ Compact Cylinders
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