
The AirTAC Airtac ACE Compact Cylinder ACE50X25S is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 25mm stroke, 1/8" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
This AirTAC ACE50X25S is a double acting compact cylinder that extends and retracts its rod with air pressure, delivering a 981.7 N push and 881.2 N pull at 0.5 MPa. The 50 mm bore unit fits into tight spaces because its ISO 21287 body is about 50% shorter than an ISO 15552 profile cylinder, so it suits compact jigs and guarded machinery.
The optional -S magnet is already fitted on this model, letting you mount CMSE or DMSE reed or solid-state switches for position sensing. As a practical rule, plan for about 589 N of real work at 0.5 MPa, which lifts roughly 60 kg vertically with a 2:1 safety margin, so match it to actual part weights before you buy.
| Model | Airtac ACE Compact Cylinder ACE50X25S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 250 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Use this 50 mm bore cylinder to clamp a workpiece in a CNC milling vise, where the 981.7 N push at 0.5 MPa holds a steel bracket firmly during cutting.
Mount this compact unit on a packaging line to raise a stop gate that diverts cartons, with the 25 mm stroke providing quick, repeatable action at speeds up to 500 mm/s.
In a warehouse sorting station, this cylinder pushes lightweight parcels off a belt onto a chute, using its 881.2 N pull at 0.5 MPa to retract the arm cleanly.
For lighter duty, the ACE40X25 offers a 628.3 N push at 0.5 MPa, while the ACE63X25 steps up to 1558.6 N push at the same pressure, so size based on your load and speed needs. This ACE50X25S has a 1/8" port and a female M10x1.5 rod thread, and it accepts FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, or FTC brackets. Remember, the TPU bumper only softens end-of-stroke impact; it does not hold a load, so use a rod lock or pilot check valve if you need position holding when air is off.
Quick checklist
At 0.5 MPa, the push force is 981.7 N and the pull force is 881.2 N. At 0.7 MPa, push rises to 1374.4 N and pull to 1233.7 N. The theoretical maximum force is 200.2 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi), and the speed range is 30-500 mm/s.
The short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, which helps in tight spaces like guard enclosures or gantries. The fixed TPU bumper at both ends absorbs end-of-stroke energy, but it is not adjustable and does not lock the rod. The optional -S magnet is fitted here, so you can add CMSE or DMSE switches for position feedback.
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.