Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50 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 ACQJ32X300-50
The ACQJ32X300-50 is a double-acting JIS compact cylinder with an external stroke adjuster, configured as a 300 mm long-stroke variant for the 32 mm bore. A threaded stop and lock nut on the rod-end side restricts how far the piston rod travels outward, giving a usable extend range of 250 to 300 mm. The retract movement remains fixed at the full 300 mm. Because the adjuster solely limits travel distance without altering the piston face area, the output force stays identical to a standard ACQ of this size.
This unit pushes with 402.1 N and pulls with 301.6 N at 0.5 MPa, reaching a maximum push capacity of 82 kgf at 1.0 MPa. It features a 16 mm piston rod, a PT1/8 port, a female M8x1.25 rod-end thread, and an M12x1.25 external adjuster thread. Deceleration is handled by a fixed NBR elastomer bumper at each end rather than an adjustable air cushion. The body includes sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50 |
|---|---|
| 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 ACQJ32X300-50
| 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 ACQJ32X300-50 Is Used
Machining Center Changeover
Dial in the extend position from 250 to 300 mm during product family changeovers on a CNC machining center without machining new stop collars.
Carton Forming Stops
Adjust the pusher end-point on the fly for varying packaging carton sizes, ensuring precise flap folding and sealing across different box dimensions.
Prototype Press Testing
Trial different extend lengths on a pneumatic press to find the exact 250-300 mm engagement depth for new material compaction processes.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X300-50 the Right Cylinder?
Selecting this model requires the 32 mm bore, 300 mm full stroke, and the 50 mm adjustable window. If your application only needs a fixed 300 mm extend and retract, a standard ACQ cylinder will suffice without the external stop hardware. For lower force needs, a 25 mm bore provides 245.4 N of push at 0.5 MPa, whereas stepping up to a 40 mm bore yields 628.3 N. Keep in mind that a plain compact cylinder will drift and lose its load upon air loss, so an external rod lock or pilot-operated check valve is necessary for fail-safe holding. Confirm the female M8x1.25 rod thread, PT1/8 port, and the lack of a magnet when ordering.
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 ACQJ32X300-50 FAQ
The usable extend range is 250-300 mm (300 mm full stroke minus a 50 mm window). It delivers 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 retract stroke is unaffected.
An external M12x1.25 threaded stop with a lock nut limits the outward extend travel, changing only the stroke length and not the piston area, so the force remains identical to a standard ACQ. End-of-stroke deceleration relies on a fixed NBR elastomer bumper, not an adjustable air cushion. This model ships without a magnet but retains sensor grooves for adding external reed or solid-state switches.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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