Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke300 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50S
The ACQJ160X300-50S is a double-acting JIS compact cylinder from AirTAC's big-bore range, featuring an external M36x2.0 threaded stop with a lock nut on the extend side. This mechanism allows you to fine-tune the extend end position on the machine, providing a usable forward travel range of 250 to 300 mm without swapping components. The retract stroke remains fixed at 300 mm.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this size. You get 10053.1 N push and 9424.8 N pull at 0.5 MPa, scaling to 14074.3 N push at 0.7 MPa, with a maximum push capacity of 2050 kgf at 1.0 MPa. The unit includes a built-in piston magnet (-S) compatible with reed or solid-state switches, fixed NBR elastomer bumpers for end-of-stroke deceleration, and a PT3/8 port.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 300 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 ACQJ160X300-50S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×300 | 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 ACQJ160X300-50S Is Used
Heavy Press Positioning
Dial in the exact 250 to 300 mm extend distance during heavy press setup changes without machining new spacer blocks.
Large Fixture Actuation
Accommodate varying large product dimensions on automotive assembly lines by tuning the extend stop on the fly.
Pallet Lift Stops
Adjust the upper lift position precisely for different pallet heights in compact material handling systems.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50S the Right Cylinder?
Choosing this 160 mm bore model provides massive thrust for heavy-duty compact setups. If you need slightly less force, stepping down to a 140 mm bore drops the 0.5 MPa push to 7696.9 N, while moving up is impossible within this big-bore series as 160 mm is the largest available. A non-adjustable standard ACQ cylinder is sufficient if your extend end position never requires field adjustments. When ordering, confirm the 300 mm full stroke, the 50 mm adjuster window, the -S magnet option, and the default female M24x3.0 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 ACQJ160X300-50S FAQ
The usable extend range is 250-300 mm (a 50 mm window shortening the 300 mm full stroke). The output force equals a standard ACQ: 10053.1 N push and 9424.8 N pull at 0.5 MPa, 14074.3 N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa.
An external M36x2.0 threaded stop with a lock nut mechanically limits the forward travel, leaving the retract stroke unaffected. The fixed NBR elastomer bumper decelerates the load near the end, but a plain ACQ-type cylinder will drift if air pressure is lost; for fail-safe holding, use an external rod lock or pilot-operated check valve.
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Related AirTAC ACQJ Compact Cylinders
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