Airtac ACE Compact Cylinder ACE50X55S
The AirTAC Airtac ACE Compact Cylinder ACE50X55S is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 55mm 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
- Stroke55 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 ACE50X55S
This AirTAC ACE50X55S is a double acting ISO 21287 compact cylinder that delivers 981.7 N of push force at 0.5 MPa, with a matching pull of 881.2 N. The 50 mm bore unit uses a 16 mm hard-chrome plated S45C rod and a 1/8" port, all wrapped in a hard-anodized aluminium body that is about 50% shorter than an ISO 15552 profile cylinder.
The -S code means the optional magnet is already fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly to sense the piston position. At 0.5 MPa, a practical safe working load is about 60 kg (roughly 0.6 times the push force), which makes this a solid choice for vertical lifting or pressing tasks where a 2:1 safety margin is needed.
Airtac ACE Compact Cylinder ACE50X55S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X55S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 55 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 ACE50X55S
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×55 | 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 ACE50X55S Is Used
Fixture Clamping
Use the ACE50X55S to clamp a 50 kg workpiece in a CNC milling fixture. Its 981.7 N push force at 0.5 MPa holds parts securely, while the short ISO 21287 body fits between the vise and the machine table.
Carton Tamping
Mount this cylinder on a packaging line to tamp down a 55 mm tall carton flap before sealing. The 881.2 N pull force retracts the rod quickly, and the optional magnet lets a CMSE sensor confirm the rod is fully retracted.
Guard Door Interlock
Install the ACE50X55S on a machine guard door to push a locking pin into place. The 60 kg safe working load at 0.5 MPa provides a strong hold, and the compact body fits within the slim guard frame.
Is the Airtac ACE Compact Cylinder ACE50X55S the Right Cylinder?
For lighter duty, the ACE40X55 offers 628.3 N push at 0.5 MPa, while stepping up to the ACE63X55 gives you 1558.6 N push at the same pressure. This 50 mm bore model sits in the middle, providing a good balance of force and compact size for medium-weight automation tasks. Since the magnet is fitted, you can add CMSE switches for position sensing, and the fixed TPU bumper handles end-of-stroke impact without the need for adjustable cushioning.
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 ACE50X55S 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), and the speed range is 30-500 mm/s.
The ACE50X55S body is about 50% shorter than an ISO 15552 profile cylinder, saving valuable mounting length in tight jigs and gantries. It uses a fixed TPU bumper at both ends to absorb impact, and since this model has the -S magnet, you can add CMSE or DMSE switches for position feedback. The body is hard-anodized aluminium with an S45C hard-chrome rod for durability.
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1-Year Warranty
Covers non-human-caused product damage.
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