
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-20S 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 ACQJ160X75-20S is a double-acting, single-rod JIS compact cylinder featuring an external extend stop. A threaded adjuster with a lock nut lets you set the outward end position on the machine, providing a usable extend range of 55 to 75 mm. The inward stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force equals a standard ACQ of this size: 10053.1 N push and 9424.8 N pull at 0.5 MPa. This big-bore unit includes a 40 mm rod, PT3/8 ports, and fixed NBR elastomer bumpers. The integrated -S magnet pairs with reed or solid-state sensors, and the M36x2.0 adjuster thread enables precise positioning without swapping parts.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X75-20S |
|---|---|
| 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 55 to 75 mm downward extend distance during heavy press setup without machining new spacers or changing cylinder bodies.
Adjust the outward end stop quickly when switching between automotive subassembly fixtures, accommodating varying part dimensions on the fly.
Fine-tune the extension endpoint on large pallet handling systems to align stops perfectly with varying load heights.
When sizing this unit, consider the 125 mm bore if your load is lighter, yielding 6135.9 N push at 0.5 MPa. If you need even greater power, the 160 mm bore provides 10053.1 N push at 0.5 MPa. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 160 mm bore, 75 mm full stroke, 20 mm window, -S magnet, and female M24x3.0 rod end.
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, with a maximum push of 2050 kgf at 1.0 MPa. The full stroke is 75 mm with a 20 mm window, allowing an adjustable extend range of 55 to 75 mm.
The M36x2.0 threaded stop limits the extend length only, leaving retract stroke and force unchanged. Fixed NBR bumpers decelerate the rod near stroke ends, but a plain cylinder does not hold loads on air loss; use an external rod lock for fail-safe holding.
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