
The AirTAC Airtac ACE Compact Cylinder ACE50X120 is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 120mm 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 ACE50X120 is a double acting compact cylinder built to ISO 21287, with a 50 mm bore and a 120 mm stroke. Its hard-anodized aluminium body and S45C hard-chrome plated rod deliver a theoretical push force of 981.7 N at 0.5 MPa, enough for moderate automation tasks. The fixed TPU bumper at each end absorbs impact, and the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames.
At 0.5 MPa, the pull force is 881.2 N, and at 0.7 MPa push rises to 1374.4 N. For a safe working load, plan on about 60 kg of real work, which is roughly 0.6 times the push force divided by gravity. The 1/8" port suits standard fittings, and the optional -S magnet is not fitted here, so CMSE or DMSE sensors cannot be mounted without ordering that code.
| Model | Airtac ACE Compact Cylinder ACE50X120 |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 120 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. |
| ×120 | 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 ACE50X120 to clamp sheet metal parts in a CNC milling fixture. The 981.7 N push force secures the workpiece, and the compact body fits under the spindle guard.
Mount this cylinder on a packaging conveyor to stop cartons at a labeling station. The 120 mm stroke retracts quickly, and the TPU bumper prevents shock to the product.
Drive a small arbor press for inserting bushings into aluminum housings. The 1374.4 N push at 0.7 MPa provides enough force for light interference fits, and the short body simplifies machine design.
For a lighter load, consider the ACE40X120 with 628.3 N push at 0.5 MPa, or step up to the ACE63X120 for 1558.6 N push. This 50 mm bore model handles medium-duty clamping or pressing with a 120 mm stroke, but remember it does not hold position when air pressure is lost; use a rod lock or pilot check valve for safety. Mounting options like FA/FB flanges or LB foot brackets bolt to the ISO 21287 face, and the optional -S magnet is needed for sensor feedback.
Quick checklist
At 0.5 MPa, push is 981.7 N and pull 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. Operating pressure is 0.15-1.0 MPa (22-145 psi), with proof pressure at 1.5 MPa (215 psi).
Yes. The ISO 21287 design saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, so it fits in tight jigs and guards. It has a fixed TPU bumper at both ends, not an adjustable cushion, and operates at speeds from 30 to 500 mm/s.
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