Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke125 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S
The AirTAC ACQJ125X125-100S is a double-acting, JIS compact cylinder from the big-bore range (up to 300mm max stroke). It features an external M27x2.0 threaded stop with a lock nut that limits the extend stroke, providing a usable extension range of 25 to 125mm. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same size. The cylinder body houses fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration and includes a piston magnet (-S) for position sensing with reed or solid-state switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 125 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 ACQJ125X125-100S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S Is Used
Heavy Press Tonnage Checks
Dial in the exact pressing distance on large metal-forming equipment during setup, allowing operators to test different material thicknesses without swapping out the entire cylinder body.
Automotive Welding Fixture Stops
Accommodate vehicle model changeovers on a single line by externally adjusting the extend end position, ensuring the welding gun retracts to the precise programmed spot for each chassis type.
Pallet Positioning Control
Vary the push-off distance for different pallet sizes on a packaging conveyor, using the external stop to fine-tune the extend limit on the factory floor without changing pneumatic plumbing.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-100S the Right Cylinder?
When sizing this 125mm bore unit, consider the 100mm bore for lower thrust (3927.0N push @0.5MPa) or step up to 160mm for higher thrust (10053.1N push @0.5MPa). If your application always operates at a fixed extension length and never requires on-machine tuning, a standard fixed-stroke ACQ cylinder is sufficient. To order this adjustable version, confirm the 125mm bore, 125mm full stroke, 100mm window, the -S magnet option, and the default 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 ACQJ125X125-100S FAQ
It delivers 6135.9N push and 5733.8N pull at 0.5MPa, and 8590.3N push at 0.7MPa, with a maximum push force of 1251kgf at 1.0MPa. The full stroke is 125mm, but the external stop provides an adjustable extend range of 25-125mm.
The M27x2.0 threaded stop with lock nut mechanically limits only the extend stroke; force remains identical to a standard ACQ because the piston area is unchanged. It uses fixed NBR elastomer bumpers for deceleration, and since it is a plain pneumatic cylinder, the rod will drift on air loss, requiring an external rod lock for fail-safe load holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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