
The AirTAC Airtac ACE Compact Cylinder ACE20X5 is a genuine double acting ISO 21287 compact air cylinder with a Ø20mm bore and 5mm 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 ACE20X5 is a double acting ISO 21287 compact cylinder with a 20 mm bore and a 5 mm stroke. It delivers 157.1 N of push force and 117.8 N of pull force at 0.5 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, making it ideal for tight spaces.
The body is hard-anodized aluminium alloy with a roller-burnished bore, and the S45C carbon-steel rod is hard-chrome plated. A fixed TPU bumper at both ends absorbs end-of-stroke energy. For a safe working load, plan for about 94 N (0.6 x 157.1 N) of real work at 0.5 MPa, which translates to lifting about 9.6 kg vertically with a 2:1 margin.
| Model | Airtac ACE Compact Cylinder ACE20X5 |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 5 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. |
| ×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 in a 20 mm bore fixture to clamp small parts on a CNC mill. The 5 mm stroke and 157.1 N push at 0.5 MPa provide precise, repeatable holding force in a compact envelope.
Drive a label applicator head in a packaging line. The short stroke and 117.8 N pull force at 0.5 MPa retract the head quickly, fitting under guarding where a longer cylinder would not.
Actuate a test probe on an electronics assembly line. The 5 mm stroke and 157.1 N push force at 0.5 MPa make contact with circuit boards, while the TPU bumper protects the probe from impact.
For a smaller force option, consider the ACE16X5 with 100.5 N push at 0.5 MPa; for more power, the ACE25X5 offers 245.4 N push at 0.5 MPa. This ACE20X5 has a 5 mm stroke, well within the 100 mm maximum standard stroke for this bore. The M5x0.8 port is standard for 20 mm bores. This model has no magnet, so order the -S code if you need CMSE or DMSE sensor capability. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets.
Quick checklist
At 0.5 MPa, push force is 157.1 N and pull force is 117.8 N. At 0.7 MPa, push force is 219.9 N and pull force is 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi).
Yes, it is an ISO 21287 compact cylinder, with a body about 50% shorter than an ISO 15552 profile cylinder. It has a fixed TPU bumper at both ends. This model does not include a magnet; the optional -S code adds one for CMSE or DMSE sensors. The rod is female thread M6x1.0, and the port is M5x0.8.
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