
The AirTAC Airtac ACE Compact Cylinder ACE50X5S is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 5mm 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 ACE50X5S is a double acting ISO 21287 compact cylinder with a 50 mm bore and a 5 mm stroke, delivering 981.7 N of push force at 0.5 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting it fit into tight machine guarding and compact jigs where a full-length cylinder would not fit.
For a 2:1 safety margin, plan to lift about 30 kg vertically with this unit at 0.5 MPa, since the theoretical lift is about 100 kg. The fixed TPU bumper at both ends absorbs end-of-stroke energy for quiet cycling, and the optional -S magnet is fitted here so CMSE or DMSE reed and solid-state switches can be mounted for position sensing.
| Model | Airtac ACE Compact Cylinder ACE50X5S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 5 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. |
| ×5 | 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 ACE50X5S to clamp thin workpieces in a CNC fixture, where its 5 mm stroke and 981.7 N push at 0.5 MPa provide firm holding without over-travel.
Mount this cylinder as a pneumatic stop on a packaging line, where the short stroke and 881.2 N pull force at 0.5 MPa retract a stop pin quickly between product batches.
In a robotic cell, this cylinder can actuate a small guard door latch, using its 50 mm bore and 5 mm stroke to fit within a slim profile while the optional magnet signals door position.
For a lighter duty in the same family, the ACE40X5 delivers 628.3 N push at 0.5 MPa, while stepping up to the ACE63X5 gives 1558.6 N push at the same pressure. This 5 mm stroke suits short indexing moves, and the 1/8" port keeps plumbing simple. Since this model carries the -S magnet, you can add CMSE or DMSE switches directly; without the -S code, no magnet is present. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all matching the ISO 21287 face. Remember, a plain ACE does not hold its position when air is lost, so for a held load use a rod lock or pilot check valve.
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. The operating pressure range is 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi).
The ACE50X5S has a hard-anodized aluminium body that is about 50% shorter than an ISO 15552 profile cylinder, saving mounting length. It includes a fixed TPU bumper at both ends to absorb shock, and the optional -S magnet allows CMSE or DMSE switches to detect rod position. Mounting options include flange, foot, clevis, and pivot brackets.
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