
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-30SB 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 ACQJ160X300-30SB is a double-acting JIS compact cylinder featuring an external extend stop mechanism. A threaded rod with a lock nut lets you dial in the extend end position on the machine, yielding a usable forward travel range of 270 to 300 mm. The return stroke remains completely unaffected by this adjustment.
Because the piston diameter is unchanged, output force equals a standard ACQ of this size, generating 10053.1 N push at 0.5 MPa. This big-bore unit includes a male M36x1.5 rod end, a fixed NBR elastomer bumper at each end, and a built-in magnet for position sensing.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-30SB |
|---|---|
| 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 reach on a large stamping press during initial tooling setup without machining new spacers.
Adapt a bulky machining fixture to new part heights by tweaking the external lock nut, saving downtime between product runs.
Fine-tune the forward push distance on a heavy-duty palletizing machine to accommodate varying box dimensions on the fly.
For 0.5 MPa push requirements around 7696.9 N, the adjacent Ø140 bore provides slightly less thrust, whereas the Ø160 unit shown here delivers 10053.1 N. If your setup never requires end-position tuning, a fixed-stroke ACQ160X300 is simpler and sufficient. When ordering this adjustable version, confirm the 300 mm total travel, 30 mm window, male rod thread, and magnet option.
Quick checklist
At 0.5 MPa, push force is 10053.1 N and pull force is 9424.8 N. At 0.7 MPa, push is 14074.3 N, with a maximum push of 2050 kgf at 1.0 MPa. The total stroke is 300 mm with a 30 mm adjustable window, giving a usable extend range of 270 to 300 mm.
The external M36x2.0 threaded stop with lock nut limits only the forward stroke length, leaving the return stroke intact. Force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed elastomer bumpers, not a lock, so for fail-safe load holding on air loss you must add an external rod lock.
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