
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-75 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 ACQJ80X75-75 is a double-acting JIS compact cylinder with a full 75mm stroke and an external threaded stop that limits extension. By turning the M20x1.5 adjuster rod with its lock nut, you can shorten the extend end position on the machine without swapping parts. The usable extend range is 0-75mm, while the retract stroke remains unaffected.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore. At 0.5 MPa, it pushes 2513.2N and pulls 2267.8N. The unit uses a fixed NBR elastomer bumper at each end for deceleration and operates at speeds from 30 to 500 mm/s. This model ships without a magnet, though the body retains sensor grooves for future upgrades.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-75 |
|---|---|
| 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).
Tune the extend end position on the fly during robotic welding fixture changeovers without machining new spacer collars.
Adjust the extend stroke rapidly when switching between different box sizes on a packaging line to maintain precise flap contact.
Dial in trial end positions for workholding clamps on machining centers to accommodate varying raw material thicknesses.
For tasks needing less thrust, the 63mm bore yields 1558.6N push at 0.5 MPa; if your application requires more power, the 100mm bore provides 3927.0N push. If your extend position never varies, a fixed-stroke ACQ80 cylinder is simpler and sufficient. When ordering this adjustable unit, confirm the 80mm bore, 75mm full stroke, 75mm window, female rod thread M16x2.0, and PT3/8 porting.
Quick checklist
At 0.5 MPa, the push force is 2513.2N and the pull force is 2267.8N. At 0.7 MPa, the push force is 3518.5N, with a maximum push of 513 kgf at 1.0 MPa. The usable extend range is 0-75mm (full 75mm stroke minus a 75mm window), while the retract stroke is unaffected.
The external M20x1.5 threaded stop with lock nut limits how far the rod extends, allowing on-machine stroke tuning without changing the piston area. The force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration, and this specific model ships without a sensor magnet.
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