Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-20S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-20S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke250 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-20S
The AirTAC ACQJ160X250-20S is a double-acting, single-rod JIS compact cylinder featuring a 160 mm bore and a 250 mm full stroke. An external M36x2.0 threaded stop with a lock nut limits the extend end position, providing a usable extend range of 230 to 250 mm. The retract stroke remains completely unaffected. Because the piston area is unchanged, the force output is identical to a standard ACQ of this bore.
This big-bore variant delivers a push force of 10053.1 N at 0.5 MPa and 14074.3 N at 0.7 MPa. It includes a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Equipped with a -S piston magnet, the cylinder operates with both reed and electronic solid-state switches. The piston rod is 40 mm in diameter with a female M24x3.0 rod-end thread, and the air supply connects via PT3/8 ports.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-20S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-20S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 250 mm |
| Adjuster thread | M36×2.0 |
| 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 | M24×3.0 (F) / M36×1.5 (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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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 ACQJ160X250-20S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | 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 ACQJ160X250-20S Is Used
Heavy Press Tonnage Setup
Dial in the exact 230-250 mm extend position during heavy press commissioning without machining custom spacers or changing the cylinder body.
Large Mold Product Changeover
Quickly shift the extend end stop to accommodate varying large mold heights during product family changeovers on injection molding lines.
Palletizer Platen Positioning
Fine-tune the upper platen stopping distance on heavy palletizing equipment to adapt to different pallet or load heights on the fly.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-20S the Right Cylinder?
When sizing this model, consider the adjacent bores: the ACQJ140 provides 7696.9 N push at 0.5 MPa, while the ACQJ160 offers 10053.1 N. If your application requires the full 250 mm extend stroke without ever needing on-the-fly adjustments, a fixed-stroke ACQ160X250 cylinder is sufficient. To order, confirm the 160 mm bore, 250 mm full stroke, 20 mm adjustment window, the -S magnet option, and the female M24x3.0 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 ACQJ160X250-20S FAQ
The usable extend range is 230 to 250 mm (a 250 mm full stroke minus up to a 20 mm window). The force is identical to a standard ACQ: push is 10053.1 N and pull is 9424.8 N at 0.5 MPa, push is 14074.3 N at 0.7 MPa, and the maximum push is 2050 kgf at 1.0 MPa.
The M36x2.0 external threaded stop limits only the extend stroke length, leaving the retract stroke intact and the piston area unchanged, so force output is not reduced. Deceleration is handled by fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. For fail-safe load holding on air loss, an external rod lock or pilot-operated check valve is required.
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Related AirTAC ACQJ Compact Cylinders
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