Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-10SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-10SB 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 ACQJ125X250-10SB
The AirTAC ACQJ125X250-10SB is a double-acting, single-rod JIS compact cylinder featuring an external adjustable stroke mechanism. A threaded stop with a lock nut on the rod-end side restricts how far the piston extends, providing a usable extend range of 240-250mm from a 250mm full stroke. The retract movement remains completely unaffected by this adjustment.
Because the adjuster solely limits travel without altering piston area, the output force stays identical to a standard ACQ of the same bore, yielding 6135.9N push at 0.5MPa. This big-bore compact variant supports up to 300mm strokes and includes a fixed NBR elastomer bumper at each end for shock absorption. It comes equipped with a male M30x1.5 rod end and an internal piston magnet for position sensing.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-10SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-10SB |
|---|---|
| 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 ACQJ125X250-10SB
| 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 ACQJ125X250-10SB Is Used
Heavy Press Setup
Dial in the exact 240-250mm extend position during heavy-duty press machine setup without machining custom spacers.
Automated Palletizing
Modify the end-stop on the fly for different pallet heights or product changeovers in automated packaging lines.
Metal Forming Trial
Test varying stroke depths for sheet metal bending operations before finalizing the mechanical hard stop.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-10SB the Right Cylinder?
Choosing this 125mm bore provides massive thrust, delivering 8590.3N push at 0.7MPa. If your application requires less force, stepping down to a 100mm bore yields 3927.0N push at 0.5MPa; conversely, scaling up to a 160mm bore offers 10053.1N. A fixed-stroke ACQ cylinder is sufficient if your end-position never varies. For this adjustable model, verify your ordering essentials: 125mm bore, 250mm full stroke, 10mm window, -S magnet, and -B male 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 ACQJ125~160 Adjustable Compact Cylinder ACQJ125X250-10SB FAQ
This cylinder provides 6135.9N push and 5733.8N pull at 0.5MPa, 8590.3N push at 0.7MPa, and a maximum push of 1251kgf at 1.0MPa. The full stroke is 250mm with a 10mm adjustable window, resulting in a usable extend range of 240-250mm.
The external M27x2.0 threaded stop with a lock nut limits the extend distance only; it does not change piston area, so force remains identical to a standard ACQ. The cylinder uses a fixed NBR elastomer bumper for end-of-stroke deceleration, not an adjustable air cushion. Additionally, the -S magnet is compatible with both reed and electronic solid-state 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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