
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-50 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 ACQJ80X90-50 is a double-acting, single-rod JIS compact cylinder featuring an external extend stop. A threaded adjuster screw with a lock nut limits how far the rod travels outward. With a 90mm full stroke and a 50mm window, you can set the usable extend range anywhere from 40mm up to 90mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays the same, output force equals a standard ACQ of this size. At 0.5 MPa it generates 2513.2N of push and 2267.8N of pull. The body incorporates fixed elastomer bumpers rather than adjustable pneumatic cushions. While this unit lacks a magnet, the cylinder body retains sensor grooves for adding external switches.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X90-50 |
|---|---|
| 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 extension on a CNC fixture without machining new spacer plates for every part revision.
Adjust the folding flap contact point on the fly during packaging line changeovers for different box sizes.
Find the ideal end position during light assembly press trials to prevent over-travel and component damage.
When sizing this 80mm bore unit, consider the 63mm bore option if you need less power, which provides 1558.6N push at 0.5 MPa. If your application requires more force, stepping up to the 100mm bore yields 3927.0N push. A fixed-stroke ACQ is sufficient if your end position never varies. To order this adjustable version, confirm the 80mm bore, 90mm full stroke, 50mm window, female rod thread, and whether you need a magnet.
Quick checklist
It provides 2513.2N push and 2267.8N pull at 0.5 MPa, 3518.5N push at 0.7 MPa, and a maximum push of 513 kgf at 1.0 MPa. The usable extend range is 40-90mm (90mm full stroke minus the 50mm window).
An external M20x1.5 threaded screw with a lock nut limits the outward stroke length only, meaning force is identical to a standard ACQ. The retract stroke is unaffected. Deceleration relies on fixed elastomer bumpers, not adjustable air cushions, so external shock absorbers are recommended for high energy loads.
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