
The AirTAC Airtac ACE Compact Cylinder ACE50X250B is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 250mm 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 ACE50X250B is a double acting compact cylinder built to ISO 21287, with a hard-anodized aluminium body and an S45C hard-chrome plated rod. At 0.5 MPa it delivers 981.7 N of push force and 881.2 N of pull force, making it a solid choice for mid-range automation tasks.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames where a longer cylinder would not. With a 250 mm stroke and a 16 mm rod, it suits applications needing a moderate reach. The optional -S magnet is not fitted here, so CMSE or DMSE sensors cannot be mounted without ordering that code. For a real-world load, plan on about 60 kg of safe vertical lift at 0.5 MPa, which is roughly 0.6 times the push force divided by gravity.
| Model | Airtac ACE Compact Cylinder ACE50X250B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 250 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. |
| ×250 | 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 the 981.7 N push at 0.5 MPa to clamp fixtures in a CNC milling machine, holding parts securely during drilling operations.
In a parcel sorting line, this 250 mm stroke cylinder can push packages off a conveyor onto a side chute, with enough force to move boxes up to 60 kg safely.
Mount on a mechanical press guard door to slide it open and closed; the compact body saves space and the 881.2 N pull retracts the door reliably.
For a lighter duty, consider the ACE40X250 with a 628.3 N push at 0.5 MPa, or step up to the ACE63X250 which provides 1558.6 N push at 0.5 MPa. This ACE50X250B has a male rod thread (B code) and a 1/8" port, so verify your fittings match. Since it lacks the optional -S magnet, it is not sensor-ready; order the -S version if you need position sensing with CMSE or DMSE switches.
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 is 1374.4 N and pull is 1233.7 N. The theoretical maximum force is 200.2 kgf at 1.0 MPa.
No, because this model does not have the optional -S magnet. Without the magnet, CMSE or DMSE switches cannot detect the piston position. You would need to order the -S version to enable sensor mounting.
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