
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-50S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ80X90-50S is a double-acting JIS compact cylinder with an external extend-stroke adjuster. A threaded stop and lock nut let you fine-tune the extend end position on the machine, giving a usable extend range of 40 to 90mm. The retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore. At 0.5MPa it delivers 2513.2N of push force and 2267.8N of pull force. The cylinder body features fixed NBR elastomer bumpers at both ends and integrated magnetic-switch grooves. The -S option includes a piston magnet compatible with reed or solid-state electronic sensors.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-50S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 90 mm |
| Adjuster thread | M20×1.5 |
| 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 | M16×2.0 (F) / M22×1.5 (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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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 extend position on CNC loading stations when raw material thickness varies, avoiding the need to swap out hard stops.
Adapt sealing or forming head heights on packaging lines rapidly for different carton profiles without replacing the actuator.
Set precise trial end positions on light assembly presses to verify tooling clearance before locking down the final stroke.
If 2513.2N push at 0.5MPa is excessive, stepping down to the 63mm bore yields 1558.6N; if more thrust is required, the 100mm bore provides 3927.0N. A fixed-stroke ACQ is sufficient if your end position never varies. When ordering this adjustable unit, confirm the 80mm bore, 90mm full stroke, 50mm window, the -S magnet, and the default female M16x2.0 rod-end thread.
Quick checklist
It provides 2513.2N push and 2267.8N pull at 0.5MPa, 3518.5N push at 0.7MPa, and a maximum push of 513kgf at 1.0MPa. The full stroke is 90mm with a 50mm adjustable window, yielding a usable extend range of 40 to 90mm. The port is PT3/8, the female rod-end thread is M16x2.0, and the external adjuster thread is M20x1.5.
No, the external stop only limits how far the rod extends; the piston area remains the same, so force is identical to a standard ACQ. Deceleration is handled by fixed NBR elastomer bumpers at both ends, not adjustable air cushions. The included -S magnet works with both reed and electronic solid-state switches.
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