
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-30S 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.
The AirTAC ACQJ160X300-30S is a double-acting, big-bore JIS compact cylinder featuring an external threaded stop and lock nut to limit the extend end position. You can fine-tune the usable extend range from 270 to 300 mm on the machine without changing parts, while the retract stroke remains unaffected. It incorporates a built-in piston magnet (-S) for position sensing.
Because the adjuster alters stroke length only, the piston area stays the same, meaning the force is identical to a standard ACQ of this 160 mm bore. The cylinder delivers 10053.1 N push and 9424.8 N pull at 0.5 MPa, operating via PT3/8 ports and a 40 mm rod. It relies on fixed NBR elastomer bumpers at each end rather than adjustable air cushions, making it suitable for heavy-duty compact automation up to 300 mm strokes.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-30S |
|---|---|
| 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.
| 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.
| 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).
Dial in the exact 270 to 300 mm extend end position during heavy press setup without machining new spacers or swapping components.
Adjust the extend stop on an automotive assembly line to accommodate different chassis lengths rapidly on the factory floor.
Fine-tune the downward clamping stroke on a palletizer to safely handle varying pallet heights without reprogramming the motion controller.
Selecting this 160 mm bore provides massive thrust in a compact footprint; if 9424.8 N pull at 0.5 MPa is excessive, dropping to a 140 mm bore yields 7294.8 N pull, while stepping up is impossible as this is the largest diameter available. If your application never requires end-position variance, a fixed-stroke ACQ cylinder is simpler and sufficient. When ordering, confirm the 300 mm full stroke, the 30 mm adjustment window, the -S magnet for electronic or reed switches, and the default female M24x3.0 rod-end thread.
Quick checklist
It delivers 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. The full stroke is 300 mm with a 30 mm adjustment window, allowing a usable extend range of 270 to 300 mm.
The external M36x2.0 threaded stop with lock nut limits the extend length only, so force remains identical to a standard ACQ because the piston area is unchanged. It uses fixed elastomer bumpers instead of air cushions; for fail-safe load holding on air loss, you must add an external rod lock or pilot-operated check valve, as the cylinder will drift.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.