Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-30S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke50 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-30S
The AirTAC ACQJ40X50-30S is a double-acting JIS compact cylinder with a 40mm bore and 50mm full stroke. An external M12x1.25 threaded stop and lock nut restricts the extend end position, yielding a usable extend range of 20-50mm without swapping parts. The retract stroke remains fixed at its standard length.
Because the piston area is unaltered, output force matches a standard ACQ exactly, delivering 628.3N push at 0.5MPa. The unit includes a -S piston magnet compatible with reed or solid-state switches, NBR elastomer bumpers for end-stop deceleration, and a PT1/8 port.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-30S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 50 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 ACQJ40X50-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 ACQJ40X50-30S Is Used
Machining Fixture Clamping
Dial in the exact clamping reach on a CNC machining center during product-changeover without machining new spacer blocks.
Carton Sealing Flap Folding
Adjust the folding arm end-stop on a packaging line to accommodate varying carton heights and flap thicknesses rapidly.
Assembly Press Positioning
Set trial end positions for a press operation during prototype development, allowing incremental 20-50mm extend adjustments.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X50-30S the Right Cylinder?
If your application only requires a fixed 50mm extend stroke, a standard ACQ40X50 cylinder is sufficient. If you need to fine-tune the end position on the machine, this ACQJ40X50-30S is the correct choice. For lower force needs (527.8N pull at 0.5MPa), consider the 32mm bore; for higher force (879.6N push at 0.7MPa), step up to the 50mm bore. Confirm your ordering essentials: 40mm bore, 50mm full stroke, 30mm window, -S magnet, and 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 ACQJ40X50-30S FAQ
It provides 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The full stroke is 50mm with a 30mm adjustable window, giving a usable extend range of 20-50mm. The retract stroke is unaffected.
No, the external M12x1.25 threaded stop limits extend length only, so force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers for deceleration, not adjustable air cushions, and the -S magnet works with reed or electronic 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.
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Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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