
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-75S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 75mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ80X75-75S is a double-acting JIS compact cylinder with an external extend stop, letting you fine-tune the forward end position directly on your equipment. With a 75mm full stroke and a 75mm adjustment window, the usable extend range spans 0-75mm. The retract stroke remains completely unaffected. An M20x1.5 adjuster thread with a lock nut secures the setting.
Because the adjustment only limits travel length, the piston area stays the same, meaning force is identical to a standard ACQ of this bore. You get 2513.2N push and 2267.8N pull at 0.5MPa, rising to 3518.5N push at 0.7MPa, with a maximum push capacity of 513kgf at 1.0MPa. This 80mm bore unit features a 25mm rod, PT3/8 porting, fixed NBR elastomer bumpers, and a built-in magnet (-S) compatible with reed or solid-state switches.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-75S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 75 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. |
| ×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 clamping extension on CNC machining centers during part setups without machining new spacer blocks.
Quickly reposition conveyor sorting gates for different package sizes by rotating the external stopper nut.
Test and set the precise downward travel for sealing jaws or forming tools on packaging lines to prevent product crushing.
Selecting this 80mm bore provides substantial power, delivering 2513.2N push at 0.5MPa. If your application requires less force, stepping down to a 63mm bore yields 1558.6N push, whereas moving up to a 100mm bore provides 3927.0N push. A fixed-stroke ACQ cylinder is sufficient if your extend position never needs variation. When ordering, confirm the 80mm bore, 75mm full stroke, 75mm window, the -S magnet for sensing, and the default female M16x2.0 rod-end thread.
Quick checklist
The usable extend range is 0-75mm (75mm full stroke minus the 75mm window). Force is identical to a standard ACQ: 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.
An external M20x1.5 threaded stop with a lock nut limits the forward travel length without altering piston area, so force remains unchanged. The cylinder uses fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. The included -S magnet works with both reed and electronic solid-state switches.
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