Airtac ACE Compact Cylinder ACE50X25B
The AirTAC Airtac ACE Compact Cylinder ACE50X25B is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 25mm 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.
- BoreØ50 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.5
- 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 ACE50X25B
This AirTAC ACE50X25B is a double acting ISO 21287 compact cylinder with a 50 mm bore and 25 mm stroke. Its hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where a full-length unit will not. The S45C piston rod is hard-chrome plated and has a male thread (B code) for direct coupling.
At 0.5 MPa this bore delivers 981.7 N push and 881.2 N pull, with 1374.4 N push at 0.7 MPa. For a real application, plan on about 589 N (60 kg) of safe working force at 0.5 MPa, which is roughly 60 kg of vertical lift with a 2:1 margin. The fixed TPU bumper absorbs end-of-stroke impact, and the body has magnet slots, but this unit has no magnet fitted unless you order the optional -S code.
Airtac ACE Compact Cylinder ACE50X25B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X25B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 25 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac ACE Compact Cylinder ACE50X25B
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | 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 ACE50X25B Is Used
Fixture Clamping
Use the ACE50X25B to clamp small parts in a CNC vise or fixture. The 981.7 N push at 0.5 MPa holds aluminum blanks firmly, and the short body fits under a low-profile workholding plate.
Carton Ejection
In a packaging line, this cylinder can push finished cartons off a conveyor onto a chute. The 25 mm stroke is enough to clear the edge, and the male rod thread simplifies attaching a pusher plate.
Gate Stop
Mount the ACE50X25B as a stop gate on a small conveyor. The 881.2 N pull at 0.5 MPa retracts the stop quickly, and the fixed TPU bumper prevents shock when the rod extends to block a box.
Is the Airtac ACE Compact Cylinder ACE50X25B the Right Cylinder?
Choose the ACE50X25B when you need a 50 mm bore with a 25 mm stroke and a male rod thread. It delivers 981.7 N push at 0.5 MPa, which is a step up from the ACE40's 628.3 N and a step down from the ACE63's 1558.6 N, so match the force to your actual load. The 1/8" port suits standard shop air, and the short body saves mounting length in compact fixtures. Since this model has no magnet, order the -S version if you need CMSE or DMSE sensors for position feedback. For a held load when air is lost, add a rod lock or pilot check valve because the bumper does not lock the rod.
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 ACE50X25B FAQ
At 0.5 MPa the push force is 981.7 N and the pull force 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).
It is an ISO 21287 compact cylinder, meaning its body is about 50% shorter than an ISO 15552 profile cylinder, saving space in tight machines. The body has slots for sensors, but this model has no magnet fitted. To use CMSE or DMSE switches, you must order the -S version with the optional magnet. The fixed TPU bumper at both ends absorbs end-of-stroke impact, but it does not hold a load.
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