
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-30B 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 ACQJ80X75-30B is a double-acting JIS compact cylinder featuring an external male-threaded rod end (M22x1.5) for direct load coupling. An external stop screw with a lock nut limits the forward stroke, allowing you to dial in the extend position from 45mm up to the full 75mm without changing parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, output force is identical to a standard ACQ of the same bore, delivering 2513.2N push at 0.5MPa. The cylinder body features integrated magnetic-switch grooves, though this specific configuration ships without a magnet. Deceleration is handled by a fixed NBR elastomer bumper at each end, rather than an adjustable air cushion.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-30B |
|---|---|
| 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).
Adapt stop positions rapidly on a press line when switching between product families, using the external adjuster to set precise 45-75mm extend depths without machining new spacers.
Accommodate varying package heights on a packaging conveyor by tweaking the extend end stop on the fly, ensuring consistent sealing pressure across different box profiles.
Dial in trial end positions on metal-bending fixtures to find the exact material deflection point, locking the M20x1.5 adjuster nut once the perfect angle is achieved.
For lighter duties, a 63mm bore provides 1558.6N push at 0.5MPa, while stepping up to a 100mm bore yields 3927.0N. If your machine never requires end-position tuning, a fixed-stroke ACQ80 cylinder will achieve the same clamping force. When ordering this adjustable unit, verify the 75mm full stroke, the 30mm adjuster window, the male M22x1.5 rod thread, and the PT3/8 port size. Since this model lacks the -S magnet, add one separately if position sensing is required.
Quick checklist
The usable extend range is 45-75mm (75mm full stroke minus the 30mm 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.
The external M20x1.5 threaded stop screw with lock nut physically blocks the rod from extending further, shortening the forward stroke only. The retract stroke is unaffected. Because the piston area remains the same, force is unchanged; the fixed elastomer bumper still handles end-of-stroke deceleration.
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