Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke250 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S
The AirTAC ACQJ125X250-100S is a double-acting JIS compact cylinder with a 125mm bore and a 250mm full stroke. An external threaded stop with a lock nut limits the extend end position, giving a usable forward range of 150-250mm. You tune the forward endpoint directly on the machine without swapping parts. The retract stroke remains completely unaffected.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore. The adjuster modifies travel length only. This big-bore compact unit features a 32mm rod, an M27x2.0 adjuster thread, and fixed NBR elastomer bumpers at each end. The -S magnet enables position detection using either reed or solid-state switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 250 mm |
| Adjuster thread | M27×2.0 |
| Port size | PT3/8 |
| 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 | M22×2.5 (F) / M30×1.5 (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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×250 | 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S Is Used
Press Tooling Changeover
Dial in the exact 150-250mm extend position for different stamping dies on a large press line without machining new spacers.
Heavy Assembly Station Stops
Set precise end-of-stroke stops for multi-model industrial equipment assembly, accommodating varying product widths on the fly.
Material Handling Diverters
Adjust the forward pusher stroke on a heavy-duty conveyor diverter to handle different pallet sizes during production runs.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S the Right Cylinder?
This 125mm bore delivers 6135.9N push and 5733.8N pull at 0.5MPa. If you need less force, the 100mm bore provides 3927.0N push at 0.5MPa. If your application requires the full 250mm forward travel without variation, a fixed-stroke ACQ cylinder suffices. When ordering, confirm the 125mm bore, 250mm full stroke, 100mm window, the -S magnet, and the female M22x2.5 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-100S FAQ
At 0.5MPa, push force is 6135.9N and pull is 5733.8N. At 0.7MPa, push is 8590.3N. The maximum push at 1.0MPa is 1251kgf. The usable extend range is 150-250mm, adjustable via the 100mm window.
The external M27x2.0 threaded stop with lock nut limits only the extend travel, so force remains identical to a standard ACQ. The retract stroke is unaffected. Deceleration relies on fixed NBR elastomer bumpers, not adjustable air cushions. Note that a plain ACQ does not hold its load on air loss; use an external rod lock for fail-safe holding.
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1-Year Warranty
Covers non-human-caused product damage.
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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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