The Airtac ACQ50X25B is a double-acting compact cylinder from the AirTAC ACQ series, built to JIS, with a 50 mm bore, 25 mm stroke, male (external) thread on the piston rod (B) and without magnet. The short body is held together by C-clips, the bore is roller-burnished and hard-anodised, and switch slots run around the barrel.
Reading the code: ACQ = compact cylinder (double acting), 50×25 = bore x stroke in mm, B = male rod thread; no S means no magnet; no further suffix means no mounting accessory and the standard PT port thread.
Technical data
| Airtac model | ACQ50X25B |
|---|---|
| Series | ACQ compact cylinder (JIS) |
| Bore | 50 mm |
| Piston rod diameter | 20 mm |
| Stroke | 25 mm (max. standard stroke for this bore: 100 mm) |
| Rod end | Male thread (B) |
| Magnet | No |
| Acting type | Double acting |
| Operating pressure | 0.15-1.0 MPa (22-145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Fluid | Air, filtered by a 40 µm filter element |
| Temperature | -20 to 70 °C |
| Speed range | 30-500 mm/s |
| Cushion | Bumper |
| Stroke tolerance | +1.0/0 mm up to 100 mm stroke, +1.5/0 mm above 100 mm |
| Port size | 1/4″ (PT standard; G and NPT on request) |
| Mounting | Body through-holes; FA, FB, LB and CB accessories available |
| Theoretical force at 0.5 MPa | push 981.7 N / pull 824.7 N (calculated, matches AirTAC thrust table) |
| Condition | New original, factory packaged |
| Origin | Made in China (Airtac International Group) |
Typical applications
- Clamping and locating on jigs and fixtures
- Gate and flap actuation on packaging machines
- Mould and tooling clamps
- Punching, marking and pressing stations
- Like-for-like replacement of an Airtac ACQ50X25B
Compatibility and replacement
ACQ cylinders follow the JIS compact-cylinder standard, so the 50 mm bore shares its basic envelope with JIS compact cylinders of other brands; still compare overall length, rod thread and mounting holes before swapping makes. Because this unit has no magnet, cylinder switches cannot sense it. If you need sensing with a male rod end, order ACQ50X25SB.
Frequently asked questions
What is the difference between ACQ50X25B and ACQ50X25S?
S means the piston carries a magnet for cylinder switches; B means the piston rod has a male thread instead of a female one. This ACQ50X25B has a male thread and no magnet.
Is ACQ50X25B a standard stroke?
25 mm is a standard stroke for the 50 mm bore in the AirTAC catalog, where the standard range goes up to 100 mm.
Can it take side load?
It should not. AirTAC advises keeping side load off the cylinder in operation and notes that the short front cover and piston limit the usable stroke; use a guided cylinder (such as the TCL/TCM series) or an external guide for offset loads.
Related parts
- Airtac ACQ50X25S ACQ Compact Cylinder
- Airtac ACQ50X30B ACQ Compact Cylinder
- Airtac ACQ50X20B ACQ Compact Cylinder
- All ACQ Compact Cylinders
Common spare part for machines already running Airtac pneumatic components. Tell us the quantity and destination country and we will confirm stock and lead time.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the part number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
