
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X80-40S 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 ACQJ80X80-40S is a double-acting JIS compact cylinder with an 80 mm full stroke and a 40 mm external adjustment window. An external M20x1.5 threaded stop and lock nut restricts the extend end position, yielding a usable forward range of 40 to 80 mm. The retract stroke remains completely unaffected by this mechanism.
Because the adjuster only limits travel length, the piston area stays the same, meaning force output is identical to a standard ACQ of this bore. At 0.5 MPa it delivers 2513.2 N of push force and 2267.8 N of pull force. The body incorporates fixed NBR elastomer bumpers at both ends and magnetic-switch grooves for position sensing.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X80-40S |
|---|---|
| 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 clamping reach on a CNC lathe during part family changeovers without machining new spacer blocks.
Vary the tucking arm extension depth on a packaging line to accommodate different box heights rapidly on the fly.
Establish safe trial end positions for a light assembly press, testing different engagement depths before finalizing the mechanical setup.
Selecting this 80 mm bore provides 2513.2 N push at 0.5 MPa; dropping to a 63 mm bore reduces push to 1558.6 N, while stepping up to a 100 mm bore yields 3927.0 N. If your machine never requires altering the end position, a fixed-stroke ACQ cylinder is sufficient and simpler. When ordering, confirm the 80 mm full stroke, the 40 mm window, the -S magnet, and the default female M16x2.0 rod-end 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 full stroke is 80 mm with a 40 mm window, allowing the usable extend range to be fine-tuned anywhere from 40 to 80 mm.
No, the external M20x1.5 stop only shortens the extend travel, leaving force identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed elastomer bumpers rather than adjustable air cushions, and it will not hold a load if air pressure is lost, requiring an external rod lock for fail-safe holding.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.