Airtac ACE Compact Cylinder ACE50X20B
The AirTAC Airtac ACE Compact Cylinder ACE50X20B 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 ACE50X20B
This ACE50X20B is a double acting ISO 21287 compact cylinder with a 50 mm bore and a 20 mm stroke, delivering 981.7 N of push force at 0.5 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, making it a strong fit for tight automation cells where space is at a premium.
With a male rod thread (B code) and a hard-anodized aluminium body, this unit is built for frequent cycling in confined spaces. Since it lacks the optional -S magnet, it cannot accept CMSE or DMSE sensors as configured; order the -S variant if position sensing is needed. For a 2:1 safety margin on vertical lifts, plan to lift about 30 kg (981.7 N divided by 9.81 and halved) rather than the full theoretical rating.
Airtac ACE Compact Cylinder ACE50X20B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X20B |
|---|---|
| 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 ACE50X20B
| 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 ACE50X20B Is Used
Compact Press Fixture
Use in a small stamping or pressing jig where the 981.7 N push at 0.5 MPa drives a punch or die, and the short body fits within a guarded machine envelope.
Conveyor Stop Gate
Mount on a packaging line to raise or lower a stop gate that diverts boxes; the 20 mm stroke is enough to block or release products at speeds up to 500 mm/s.
Clamping Unit
In a CNC workholding fixture, this cylinder can clamp small parts with a pull force of 881.2 N at 0.5 MPa, holding them steady during drilling or milling operations.
Is the Airtac ACE Compact Cylinder ACE50X20B the Right Cylinder?
For lighter duty, consider the ACE40X20 with 628.3 N push at 0.5 MPa, or step up to the ACE63X20 for 1558.6 N push if your application demands more force. This 50 mm bore version offers a balanced middle ground for medium-load pick-and-place tasks, but remember it is not a load-holding cylinder - if air pressure drops, the rod will drift, so add a pilot check valve or rod lock for vertical applications. The male rod thread simplifies mounting with rod-end accessories, and the 1/8" port matches standard fittings for this bore class.
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 ACE50X20B 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 at 1.0 MPa is 200.2 kgf.
No, this model without the -S code has no magnet, so CMSE or DMSE switches cannot be mounted. To use sensors, you must order the ACE50X20BS variant, which includes the optional magnet for switch detection.
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