
The AirTAC Airtac ACE Compact Cylinder ACE20X50SB is a genuine double acting ISO 21287 compact air cylinder with a Ø20mm bore and 50mm stroke, M5×0.8 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 ACE20X50SB is a double acting ISO 21287 compact cylinder that extends and retracts its 10 mm rod with air pressure. With a 20 mm bore it delivers 157.1 N of push force at 0.5 MPa, which is enough to handle light clamping and positioning tasks in automated assembly lines.
Its short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, making it ideal for tight machine guards and compact jigs. The optional -S magnet is fitted here, so you can mount CMSE or DMSE reed switches for end-of-stroke sensing. For real work, plan on about 94 N (roughly 9.6 kg) of usable force at 0.5 MPa, keeping a safety margin below the theoretical rating.
| Model | Airtac ACE Compact Cylinder ACE20X50SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 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 | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 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). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 in a benchtop fixture to clamp small plastic parts for drilling or gluing, with 157.1 N push force at 0.5 MPa holding components steady.
Actuate a diverting flap on a packaging conveyor to route lightweight cartons, with the 50 mm stroke providing quick redirection.
With the fitted -S magnet, mount CMSE switches to confirm the rod is fully extended or retracted in a pick-and-place station.
For a lighter load, consider the ACE16X50 with 100.5 N push at 0.5 MPa, while the ACE25X50 offers 245.4 N push if you need more force in the same compact footprint. The M5x0.8 port suits small-bore air lines, and the male rod thread (B) simplifies mounting to fixtures. This model includes the -S magnet, so you can add CMSE or DMSE sensors for position feedback, but remember it does not hold position if air pressure is lost.
Quick checklist
At 0.5 MPa, push force is 157.1 N and pull force is 117.8 N. At 0.7 MPa, push is 219.9 N and pull is 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa (22-145 psi).
The hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits in tight spaces like machine guards and gantries. It has a fixed TPU bumper at both ends to absorb end-of-stroke impact, and the optional -S magnet allows CMSE or DMSE sensors for position detection.
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.