
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-50S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ160X75-50S is a big-bore JIS compact cylinder featuring a double-acting, single-rod design with an external extend stroke adjuster. A threaded stop and lock nut limit the outward travel, yielding a usable forward range of 25 to 75 mm. The return motion remains fixed at the full 75 mm. Because the adjuster solely restricts travel length, the piston area stays intact, delivering 10053.1 N of push force at 0.5 MPa, identical to a standard ACQ of this size.
This massive 160 mm bore variant includes an integrated piston magnet (-S) for positioning feedback. It utilizes fixed NBR elastomer bumpers at both ends rather than adjustable pneumatic cushions. Operating at pressures from 0.15 to 1.0 MPa, the unit accepts PT3/8 supply ports and features an M36x2.0 external adjuster thread. Note that a standard compact build does not hold loads on air loss; deploy an external rod lock for fail-safe positioning.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-50S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 75 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. |
| ×75 | 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 clamping reach on heavy stamping presses during tool changeovers without machining new spacers.
Tune the product push-off distance on large injection molding machines to safely clear varied part geometries.
Establish precise end stops for heavy pallet lift stations, allowing quick reconfiguration of package heights.
Selecting this 160 mm unit provides 14074.3 N of thrust at 0.7 MPa, sitting below the largest big-bore option and above the 140 mm variant which yields 7696.9 N push at 0.5 MPa. If your fixture always moves to a fixed 75 mm endpoint without variation, a non-adjustable ACQ160X75 standard cylinder suffices. When ordering, confirm the 75 mm full stroke, the 50 mm adjuster window, the -S magnet for electronic or reed sensors, and the female M24x3.0 rod-end thread.
Quick checklist
It delivers 10053.1 N push and 9424.8 N pull force at 0.5 MPa, and 14074.3 N push at 0.7 MPa. The maximum push is 2050 kgf at 1.0 MPa. The full stroke is 75 mm with a 50 mm adjustment window, yielding a usable extend range of 25 to 75 mm.
An external M36x2.0 threaded stop with a lock nut limits outward travel without altering piston area, so force remains unchanged. Fixed NBR bumpers absorb end-of-stroke energy instead of air cushions. The cylinder will drift on air loss, so an external rod lock is required for fail-safe load holding.
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