
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X80-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ80X80-20SB is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You can fine-tune the usable extend stroke from 60 to 80 mm directly on the machine without swapping components, while the retract stroke remains completely unaffected. Equipped with a male M22x1.5 rod thread and a PT3/8 port, it couples directly to your load.
Because the internal piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 2513.2 N of push force at 0.5 MPa. The cylinder includes a built-in piston magnet for use with reed or electronic solid-state switches, and relies on a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X80-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 80 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. |
| ×80 | 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 end position for short-run machining fixtures without machining new spacer plates.
Adapt conveyor diverter stops on a packaging line quickly when switching to a different carton length.
Test multiple engagement depths on an assembly press safely before locking the final 60-80mm extend range.
If your application needs less thrust, the adjacent bore 63 provides 1558.6 N push at 0.5 MPa, whereas stepping up to bore 100 yields 3927.0 N. Choose this 80mm bore if you need 2513.2 N push force alongside on-the-fly 60-80mm extend tuning. If the exact 80mm extend position never varies, a fixed-stroke ACQ suffices. Confirm your ordering essentials: 80mm bore, 80mm full stroke, 20mm adjuster window, S magnet, and B male rod thread.
Quick checklist
It 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 usable extend range is 60-80 mm via the 20 mm adjustment window.
The external M20x1.5 threaded stop with lock nut limits the extend stroke length only, meaning force is identical to a standard ACQ. It uses fixed elastomer bumpers, and since it is a plain cylinder, the rod will drift on air loss, requiring an external rod lock for fail-safe holding.
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