Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-75
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-75 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke125 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-75
The ACQJ32X125-75 is a double-acting, single-rod JIS compact cylinder featuring a 125mm stroke, which classifies it as a long-stroke made-to-order variant for the 32mm bore series. An external threaded stop with a lock nut restricts the extend travel, yielding a usable outward range of 50 to 125mm. The retract distance remains fixed at 125mm.
Because the piston area is unaltered, the output force matches a standard ACQ exactly, delivering 402.1N push and 301.6N pull at 0.5MPa. The unit incorporates fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. It operates at pressures from 0.15 to 1.0MPa with a speed range of 30-500mm/s, and the body includes sensor grooves for adding reed or solid-state switches, though this specific SKU ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-75 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-75 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 125 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 ACQJ32X125-75
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 ACQJ32X125-75 Is Used
Multi-Format Press Tooling
Dial in the extend stop between 50 and 125mm when swapping press die sets, avoiding the need to machine custom spacers for each new product family.
Variable Package Diverter
Adjust the pusher stroke on-site to deflect different carton widths on a packaging line, using the lock nut to secure the exact end position.
Assembly Machine Changeover
Fine-tune the clamping reach on an automated assembly fixture during product changeover, testing trial end positions before locking the mechanism down.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X125-75 the Right Cylinder?
When sizing this unit, consider the adjacent bores: the ACQJ25 provides 245.4N push at 0.5MPa, while the ACQJ40 yields 628.3N. If your machine only needs a fixed 125mm outward movement without on-machine tuning, a standard ACQ32X125 is simpler and sufficient. If you require position sensing, select the -S magnet option. Confirm your ordering essentials: 32mm bore, 125mm full stroke, 75mm window, female M8x1.25 rod end, PT1/8 port, and the M12x1.25 external adjuster thread. Note that a plain compact cylinder will drift if air is lost; use an external rod lock for fail-safe load holding.
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 ACQJ32X125-75 FAQ
It provides 402.1N push and 301.6N pull at 0.5MPa, 562.9N push at 0.7MPa, and a maximum push of 82kgf at 1.0MPa. The full stroke is 125mm with a 75mm window, allowing the extend end to be adjusted within a 50-125mm range. The external adjuster uses an M12x1.25 thread.
The external stop limits stroke length only; it does not change the piston area, so force remains identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at both ends. For high kinetic energy loads, an external shock absorber should be added since there is no 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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