
The AirTAC Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ63X25-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø63mm bore and 25mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ63X25-30SB is a double-acting JIS compact cylinder with a 63mm bore and a 25mm full stroke. It features an external threaded stop with a lock nut on the extend side, allowing you to fine-tune the extend end position directly on your equipment. The usable extend range is 0-25mm, while the retract stroke remains completely unaffected.
Because the internal piston area is unchanged, the output force is identical to a standard ACQ of this bore, delivering 1558.6N push and 1401.5N pull at 0.5MPa. The unit includes a male M18x1.5 rod-end thread for direct load coupling, a PT1/4 port, and fixed NBR elastomer bumpers at both ends. The built-in piston magnet (-S) works seamlessly with both reed and solid-state electronic switches.
The external adjuster utilizes an M16x1.5 thread to set the extend limit. Operating pressure spans 0.15-1.0 MPa, with a proof pressure of 1.5 MPa and a speed range of 30-500 mm/s.
| Model | Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ63X25-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø63 mm |
| Full stroke | 25 mm |
| Adjuster thread | M16×1.5 |
| Port size | PT1/4 |
| 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 | M10×1.5 (F) / M18×1.5 (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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 to 0-25mm during part setup changes without swapping out cylinder hardware on the machining fixture.
Modify the extend end stop on packaging lines to accommodate different carton sizes quickly and accurately on the fly.
Test and set exact trial end positions for pressing operations on automated assembly machinery before final lock down.
If you need less force, the 50mm bore provides 981.8N push at 0.5MPa; for heavier loads, the 80mm bore yields 2513.2N. A fixed-stroke ACQ63 is sufficient if your extend position never varies. When ordering, verify the 63mm bore, 25mm full stroke, 30mm adjustment window, -S magnet, and -B male rod thread.
Quick checklist
The push force is 1558.6N and pull is 1401.5N at 0.5MPa, with 2182N push at 0.7MPa and a maximum push of 318kgf at 1.0MPa. The full stroke is 25mm with a 30mm window, giving a usable extend range of 0-25mm; the retract stroke is unaffected.
The external M16x1.5 threaded stop with lock nut limits the extend stroke length only, so the force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end, and the -S magnet supports both reed and electronic solid-state switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.