Airtac ACE Compact Cylinder ACE50X120S
The AirTAC Airtac ACE Compact Cylinder ACE50X120S is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 120mm 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
- Stroke120 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 ACE50X120S
This AirTAC ACE50X120S is a double acting compact cylinder built to ISO 21287, with a hard-anodized aluminium body and an S45C hard-chrome plated rod. At 0.5 MPa it delivers 981.7 N of push force and 881.2 N of pull force, while at 0.7 MPa the push rises to 1374.4 N and pull to 1233.7 N, with a theoretical maximum of 200.2 kgf at 1.0 MPa.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding. The optional -S magnet is fitted on this model, enabling CMSE or DMSE reed and solid-state switches for position sensing. For a real-world load, plan on about 60 kg of safe vertical lift at 0.5 MPa, a practical figure derived from the rated push force with a safety margin.
Airtac ACE Compact Cylinder ACE50X120S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X120S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 120 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 ACE50X120S
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 ACE50X120S Is Used
Fixture Clamping
Use in a CNC fixture to clamp a 50 kg workpiece during drilling, with the 981.7 N push force at 0.5 MPa providing secure holding and the compact body fitting under the spindle guard.
Conveyor Stop Gate
Mount on a packaging line to stop boxes on a conveyor; the 120 mm stroke retracts the gate fully, and the -S magnet triggers a CMSE switch to confirm the gate is clear.
Press Ram
In a small assembly press, this cylinder pushes a stamping die with 1374.4 N at 0.7 MPa, while the fixed TPU bumper absorbs the impact at the end of each stroke, protecting the tooling.
Is the Airtac ACE Compact Cylinder ACE50X120S the Right Cylinder?
When sizing for a 50 mm bore, compare with the 40 mm bore that pushes 628.3 N and the 63 mm bore that pushes 1558.6 N at 0.5 MPa, so this unit suits medium-force applications like clamping or pressing. The 120 mm stroke is within the 250 mm maximum standard stroke for this bore, and the 1/8" port matches the bore size. Since this model carries the -S magnet, you can add CMSE or DMSE switches directly; without the -S code, no magnet is present. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all compatible with the ISO 21287 face. Remember, this cylinder does not hold its position if air pressure is lost; for load holding, use a rod lock or pilot check valve.
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 ACE50X120S 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 bore is 50 mm, the rod is 16 mm, and the port is 1/8".
The ACE50X120S has a short body that saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, so it fits in tight spaces. It has a fixed TPU bumper at both ends to absorb impact, not an adjustable cushion. The optional -S magnet is fitted here, allowing CMSE or DMSE switches to detect the piston position.
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