
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-50 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 AirTAC ACQJ80X45-50 is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that limits the extend end position. You get an on-machine usable extend range of 0-45mm (full stroke 45mm minus the 50mm window), while the retract stroke remains completely unaffected. Because the piston area stays the same, output force is identical to a standard ACQ of this bore.
This bore 80 unit delivers 2513.2N push and 2267.8N pull at 0.5MPa, running via PT3/8 ports with a 25mm rod. It relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X45-50 |
|---|---|
| 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 clamping reach on a CNC fixture during setup. The external stop lets you hit a precise end position without machining custom spacers.
Adapt a carton sealing station for different box heights. Adjust the extend stroke on the fly to maintain proper sealing pressure across product variants.
Test insertion depths on an electronics assembly press. Safely limit the 2513.2N push force travel to prevent damaging delicate components during initial runs.
If you need less thrust, the bore 63 version offers 1558.6N push at 0.5MPa, whereas the larger bore 100 provides 3927.0N. If your application never requires altering the extend endpoint, a fixed-stroke ACQ cylinder will suffice. When ordering this adjustable variant, confirm the 45mm full stroke, the 50mm window, the female M16x2.0 rod thread, and whether you require the S magnet option for sensor tracking.
Quick checklist
It delivers 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 full stroke is 45mm with a 50mm adjustable window, giving a usable extend range of 0-45mm.
An external M20x1.5 threaded stop with a lock nut limits only the extend stroke length, meaning force remains identical to a standard ACQ because the piston area is unchanged. The cylinder uses fixed NBR elastomer bumpers for deceleration, not an adjustable air cushion, so the retract stroke is unaffected.
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