
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-100S 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.
The ACQJ160X250-100S is a double-acting, big-bore JIS compact cylinder featuring an external extend-stop mechanism. By turning a threaded adjuster with a lock nut, you can set the forward stroke anywhere within a 150 to 250 mm usable range. The retraction distance remains fixed at the full 250 mm.
Because the piston area is unaltered, output power matches a standard ACQ exactly, yielding 10053.1 N of push force at 0.5 MPa. The unit incorporates a fixed NBR elastomer bumper at each end and a built-in piston magnet for electronic or reed sensing. Operating speed spans 30-500 mm/s.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-100S |
|---|---|
| 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.
| 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. |
| ×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).
Dial in the exact forming depth on large metal stamping presses during tooling setups without machining custom spacers.
Adapt the squaring fence extension distance on automated packaging lines to accommodate varying pallet dimensions instantly.
Restrict the upper travel of heavy-duty material lifts to test safe clearance heights before finalizing the mechanical end position.
As the largest standard bore in this compact family, this 160 mm variant provides a maximum push of 2050 kgf at 1.0 MPa. Stepping down to a 140 mm bore lowers the 0.5 MPa push to 7696.9 N, while no larger bore exists in the ACQJ line. If your machinery never requires end-position tweaking, a fixed-stroke ACQ cylinder is sufficient. When ordering, verify the 250 mm full stroke, 100 mm window, S magnet option, and PT3/8 porting.
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 usable extend range is 150-250 mm via a 100 mm window. The piston rod is Ø40 mm with an M24x3.0 female rod-end thread, an M36x1.5 male thread, and an M36x2.0 external adjuster thread.
No, the adjuster only limits the extend length, so output power is identical to a standard ACQ of the same bore. Deceleration is handled by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. For high-speed or high-energy loads, use an external shock absorber. Note that a plain ACQ-type cylinder will drift if air pressure is lost; use an external rod lock for fail-safe holding.
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