
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-50B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ80X50-50B is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the EXTEND end position. With a 50 mm full stroke and a 50 mm window, the usable extend range is 0-50 mm. The RETRACT stroke remains unaffected, allowing on-machine end-position tuning without swapping parts.
Because the piston area is unchanged, force is identical to a standard ACQ of this bore. It delivers 2513.2 N push and 2267.8 N pull at 0.5 MPa, and 3518.5 N push at 0.7 MPa. This bore 80 unit features a 25 mm rod, PT3/8 port, male M22x1.5 rod-end thread, and fixed elastomer bumpers at each end.
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-50B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 50 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. |
| ×50 | 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 extend position for varying part fixtures on a CNC loader, using the external stop to adapt lengths instantly.
Adjust the extend endpoint on the fly during packaging line product changeovers to handle different box sizes without replacing hardware.
Set trial end positions on an assembly press, relying on the 0-50 mm usable range to test stroke depth before finalizing the movement.
When sizing this model, the adjacent bore 63 yields 1558.6 N push at 0.5 MPa, while the larger bore 100 provides 3927.0 N push. If the exact extend distance is fixed and never needs tuning, a standard ACQ cylinder suffices. Confirm your ordering essentials: 80 mm bore, 50 mm full stroke, 50 mm window, male rod thread (-B), and no magnet.
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 max push of 513 kgf at 1.0 MPa. The usable extend range is 0-50 mm (50 mm full stroke minus the 50 mm window). The male rod-end thread is M22x1.5, the adjuster thread is M20x1.5, and the port is PT3/8.
The external M20x1.5 threaded stop with lock nut limits only the extend stroke length, meaning force is identical to a standard ACQ. The cylinder uses fixed elastomer bumpers, not adjustable air cushions. Note that a plain ACQ does not hold its load on air loss; for a fail-safe hold, use an external rod lock or pilot-operated check valve.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.