
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 45mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ80X45-30S 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 range from 15 mm up to the full 45 mm directly on the machine without swapping parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 2513.2 N push and 2267.8 N pull at 0.5 MPa. The bore 80 body uses a PT3/8 port, a 25 mm piston rod, and fixed elastomer bumpers at both ends. The included -S magnet works with reed or solid-state switches for position sensing.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 45 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. |
| ×45 | 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 extend position from 15 to 45 mm on CNC machining fixtures to accommodate varying part widths without fabricating new mechanical stop blocks.
Adjust the extend end stop rapidly during product changeovers on an assembly line, accommodating different package sizes while maintaining the full 2513.2 N push force.
Set precise trial end positions on packaging press mechanisms, using the external M20x1.5 adjuster to fine-tune the stroke window for delicate materials.
When sizing this model, consider the neighbouring bores: a 63 mm bore provides 1558.6 N push at 0.5 MPa, while a 100 mm bore yields 3927.0 N. The 80 mm bore hits 2513.2 N push at 0.5 MPa, making it suitable for medium-heavy tasks. If your extend position never varies, a fixed-stroke ACQ cylinder suffices. To order, confirm the 80 mm bore, 45 mm full stroke, 30 mm adjustable window, the -S magnet for sensing, and the female M16x2.0 rod-end thread.
Quick checklist
The usable extend range is 15-45 mm (a 30 mm window off the 45 mm full stroke). Force is identical to a standard ACQ: 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.
An external M20x1.5 threaded stop with a lock nut limits the extend stroke only; the retract stroke is unaffected. The adjuster changes stroke length only, so force remains unchanged. The cylinder uses fixed elastomer bumpers at both ends, not adjustable air cushions. For fail-safe load holding on air loss, use an external rod lock.
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