Airtac ACE Compact Cylinder ACE50X20SB
The AirTAC Airtac ACE Compact Cylinder ACE50X20SB is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 20mm 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
- Stroke20 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 ACE50X20SB
This AirTAC ACE50X20SB is a double acting ISO 21287 compact cylinder that extends and retracts its 16 mm rod with air pressure. It delivers 981.7 N of push force and 881.2 N of pull force at 0.5 MPa, making it a solid choice for medium-duty automation tasks.
The short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding. The optional -S magnet is fitted on this model, allowing CMSE or DMSE reed and solid-state switches to sense the piston position. For a 2:1 safety margin, plan to lift about 50 kg vertically with this unit at 0.5 MPa, based on its 981.7 N push force.
Airtac ACE Compact Cylinder ACE50X20SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X20SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 20 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 ACE50X20SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 ACE50X20SB Is Used
Fixture Clamping
Use the ACE50X20SB to clamp small parts in a CNC vise or workholding fixture. Its 981.7 N push force holds components firmly during drilling or milling, and the compact body fits under a machine guard.
Carton Tabbing
In a packaging line, this cylinder can push a tab or flap into place on a cardboard carton. The 20 mm stroke is enough for a quick action, and the 881.2 N pull force retracts the rod reliably for the next cycle.
Stop Gate
Mount the ACE50X20SB as a stop gate on a light conveyor. With a 50 mm bore, it provides 981.7 N of force to halt a product carrier, and the optional magnet lets a sensor confirm the gate is up or down.
Is the Airtac ACE Compact Cylinder ACE50X20SB the Right Cylinder?
For lighter work, consider the ACE40X20 with 628.3 N push at 0.5 MPa, while the ACE63X20 offers 1558.6 N push for heavier loads. This 50 mm bore model with a 20 mm stroke is ideal for short, repetitive strokes where space is limited. The male rod thread (B) simplifies mounting to tooling, and the 1/8" port matches common air line sizes. Since the magnet is fitted, you can add CMSE or DMSE sensors for position feedback. Remember, this cylinder does not hold its position if air pressure is lost, so use a rod lock or pilot check valve for load 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 ACE50X20SB 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 rod diameter is 16 mm and the port is 1/8".
The ACE50X20SB has a short body that saves about 50% of the mounting length compared to an ISO 15552 profile cylinder. This lets you install it in confined areas like inside machine guards or on small gantries. The fixed TPU bumper at each end absorbs end-of-stroke impact, and the optional -S magnet allows CMSE or DMSE sensors to detect the piston position.
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