
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-30SB 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 ACQJ80X75-30SB is a double-acting JIS compact cylinder with an external M20x1.5 threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend stroke from 45 mm up to the full 75 mm directly on the machine without swapping parts, while the retract stroke remains unaffected. It includes a male M22x1.5 rod end and a built-in piston magnet.
Because the adjuster only changes stroke length and not the piston area, output force is identical to a standard ACQ of the same bore. At 0.5 MPa it delivers 2513.2 N of push force and 2267.8 N of pull force. The body uses fixed NBR elastomer bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X75-30SB |
|---|---|
| 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).
Dial in the extend position on CNC machining fixtures to accommodate raw material variations without fabricating custom spacer blocks.
Adjust the extend endpoint during packaging line format changeovers to handle different carton depths quickly and keep downtime minimal.
Set trial end positions on automated assembly presses to test insertion depths before locking down the final mechanical stop.
Select this 80 mm bore if your application requires a push force of 2513.2 N at 0.5 MPa and on-machine extend-position tuning within a 45-75 mm range. If you need less force, the 63 mm bore provides 1558.6 N of push; for heavier loads, the 100 mm bore offers 3927.0 N. A fixed-stroke ACQ cylinder is sufficient if your end position never varies. Confirm your ordering essentials: 80 mm bore, 75 mm full stroke, 30 mm adjuster window, S magnet, and B male rod thread.
Quick checklist
The usable extend range is 45-75 mm (75 mm full stroke minus the 30 mm window). Force is identical to a standard ACQ: push is 2513.2 N and pull is 2267.8 N at 0.5 MPa, push is 3518.5 N at 0.7 MPa, and maximum push is 513 kgf at 1.0 MPa.
An external M20x1.5 threaded screw with a lock nut limits the extend stroke length without altering piston area, so force remains unchanged. Fixed NBR bumpers decelerate the rod at travel ends. The included S magnet works with reed or electronic solid-state switches for position sensing.
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