Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke50 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40B
The AirTAC ACQJ32X50-40B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. It provides a usable extend range of 10-50 mm (a 50 mm full stroke shortened by up to 40 mm), while the retract stroke remains unaffected. Because the piston area is unchanged, the force is identical to a standard ACQ of this bore.
This variant features a male M14x1.5 piston rod end for direct load coupling and a PT1/8 port. It includes fixed elastomer bumpers at both ends rather than adjustable air cushions. Although the body retains magnetic-switch grooves, this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 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 (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 ACQJ32X50-40B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | 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 ACQJ32X50-40B Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture using the external M12x1.25 adjuster thread without machining new spacer plates.
Product Changeover Guides
Shift the extend end position by up to 40 mm on a packaging line when switching carton sizes, keeping the full retract stroke intact.
Prototype Positioning
Find the optimal extension distance during equipment R&D by testing various end points within the 10-50 mm usable range.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X50-40B the Right Cylinder?
If 402.1 N push force at 0.5 MPa is insufficient, consider the ACQJ40 bore (628.3 N push); if it is excessive, the ACQJ25 bore provides 245.4 N. A fixed-stroke ACQ cylinder is adequate if your end position never varies. When ordering, confirm the 32 mm bore, 50 mm full stroke, 40 mm adjuster window, male rod thread, and whether a magnet is needed for sensors.
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 ACQJ32X50-40B FAQ
The usable extend range is 10-50 mm (50 mm full stroke minus the 40 mm window). Force is identical to a standard ACQ: 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 external threaded stop with lock nut limits only the extend length, leaving retract unaffected. It changes stroke length only, so piston area and force remain unchanged. The cylinder uses fixed elastomer bumpers for end-of-stroke deceleration, not an adjustable cushion or load-holding brake.
Authorized Export Seller
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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