Airtac ACE Compact Cylinder ACE20X25S
The AirTAC Airtac ACE Compact Cylinder ACE20X25S is a genuine double acting ISO 21287 compact air cylinder with a Ø20mm bore and 25mm 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.
- BoreØ20 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACE Compact Cylinder ACE20X25S
This ACE20X25S is a double acting ISO 21287 compact cylinder that uses air to both extend and retract its 10 mm rod. 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 small part transfer duties in automated assembly lines.
The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting it fit inside tight machine guards and compact jigs. The optional -S magnet is fitted on this unit, so you can add CMSE or DMSE reed switches for position sensing. For a real-world load, plan for about 9.6 kg of safe vertical lifting at 0.5 MPa, which is roughly 0.6 times the push force divided by gravity.
Airtac ACE Compact Cylinder ACE20X25S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE20X25S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 25 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac ACE Compact Cylinder ACE20X25S
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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.
Where the Airtac ACE Compact Cylinder ACE20X25S Is Used
Small Part Clamping
Use the ACE20X25S to clamp small plastic or aluminum parts on a CNC fixture. Its 157.1 N push force at 0.5 MPa holds components securely during light drilling or engraving operations.
Conveyor Stop Gate
Mount this cylinder on a packaging conveyor to raise and lower a stop gate. The 25 mm stroke is ideal for blocking or releasing small cartons, and the compact body fits between conveyor rails.
Pick-and-Place Lift
In an automated assembly cell, use the ACE20X25S to lift a lightweight gripper or vacuum cup. Its 117.8 N pull force at 0.5 MPa can raise small components for transfer between stations.
Is the Airtac ACE Compact Cylinder ACE20X25S the Right Cylinder?
When sizing this ACE20X25S, compare it with the ACE16X25 which produces 100.5 N push at 0.5 MPa for lighter duty, or step up to the ACE25X25 for 245.4 N push if your application needs more force. The M5x0.8 port is standard for this 20 mm bore, and the stroke of 25 mm is well within the 100 mm maximum standard stroke for this size.
Since this model carries the -S magnet, you can mount CMSE or DMSE sensors to confirm rod position. The fixed TPU bumper at both ends absorbs end-of-stroke impact, but it does not hold a load if air pressure is lost, so add a rod lock or pilot check valve if you need position holding.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE20X25S FAQ
At 0.5 MPa, the push force is 157.1 N and the 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. The operating pressure range is 0.15-1.0 MPa (22-145 psi).
The ACE20X25S has a hard-anodized aluminum body that is about 50% shorter than an ISO 15552 profile cylinder, so it fits in tight spaces. It has a fixed TPU bumper at each end to absorb impact, and the optional -S magnet allows CMSE or DMSE sensors to detect rod position.
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