
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-40 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 ACQJ80X90-40 is a double-acting JIS compact cylinder with an external M20x1.5 threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position on the machine, yielding a usable extend range of 50-90 mm from the 90 mm full stroke, while the retract stroke remains completely unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 2513.2 N push at 0.5 MPa. The body features integrated magnetic-switch grooves for adding sensors, and relies on a fixed NBR elastomer bumper at each end for end-of-travel deceleration rather than an adjustable air cushion.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-40 |
|---|---|
| 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 clamping reach on a CNC machining center during setup, absorbing part variance without fabricating custom spacer plates.
Rapidly reposition the extend endpoint for different carton sizes on an automated packaging line, minimizing mechanical downtime between product runs.
Establish trial end positions for pressing sub-components, allowing operators to safely tweak the 50-90 mm stroke window before finalizing the mechanical stop.
When sizing this 80 mm bore actuator, note that a smaller 63 mm bore yields 1558.6 N push, whereas a larger 100 mm bore provides 3927.0 N push at 0.5 MPa. If your setup never requires altering the extend endpoint, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable variant, confirm the 80 mm bore, 90 mm full stroke, 40 mm adjustment window, female M16x2.0 rod-end thread, and PT3/8 porting.
Quick checklist
This cylinder provides 2513.2 N push and 2267.8 N pull at 0.5 MPa, 3518.5 N push at 0.7 MPa, and a maximum push of 513 kgf at 1.0 MPa. The 40 mm adjustment window allows the usable extend range to be set anywhere from 50 mm up to the full 90 mm.
The M20x1.5 external threaded stop with lock nut limits only the extend length, meaning force stays identical to a standard ACQ. Deceleration relies on a fixed elastomer bumper, not an adjustable air cushion. The body includes sensor grooves, but this specific model ships without a magnet.
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