
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-30B 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 ACQJ80X45-30B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that restricts the extend end position. By turning the M20x1.5 adjuster, you can shorten the extend stroke by up to 30 mm, yielding a usable forward range of 15 to 45 mm. The retract distance remains completely unaffected by this mechanism.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 2513.2 N of push force at 0.5 MPa. This variant includes a male M22x1.5 piston rod end for direct load coupling and relies on a fixed NBR elastomer bumper at each end for deceleration. The body features integrated sensor grooves, though this specific unit ships without a magnet.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-30B |
|---|---|
| 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 exact forward clamping reach on a CNC fixture without machining new spacers, accommodating varying part thicknesses on the fly.
Adjust the pressing depth for different package heights on an automated packing line, ensuring consistent flap closure without changing tooling.
Fine-tune the trial end position for inserting bearings or pins on an assembly press, allowing precise setup before finalizing the mechanical stop.
For lower force needs, a 63 mm bore provides 1558.6 N push at 0.5 MPa, whereas stepping up to a 100 mm bore yields 3927.0 N. If your machinery requires a fixed extend length that never deviates, a standard ACQ cylinder will suffice without the external stop hardware. When ordering this adjustable variant, confirm the 80 mm bore, 45 mm full stroke, 30 mm window, the male rod thread (-B), and note that no magnet (-S) is included.
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 45 mm with a 30 mm window, giving a usable extend range of 15 to 45 mm.
The M20x1.5 threaded stop with lock nut limits only the extend length, meaning force is unchanged from a standard ACQ. Deceleration relies on a fixed NBR elastomer bumper, not an adjustable air cushion, so for high-speed loads an external shock absorber is advised.
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