Airtac ACE Compact Cylinder ACE20X40B
The AirTAC Airtac ACE Compact Cylinder ACE20X40B is a genuine double acting ISO 21287 compact air cylinder with a Ø20mm bore and 40mm stroke, M5×0.8 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.
- BoreØ20 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- 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 ACE20X40B
This AirTAC ACE20X40B is a double acting ISO 21287 compact cylinder with a 20 mm bore and 40 mm stroke, delivering 157.1 N push and 117.8 N pull at 0.5 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where a full-length unit will not.
The hard-anodized aluminium body and S45C hard-chrome rod resist wear in continuous cycling. With a male rod thread (B code), it connects directly to tooling without a rod-end adapter. For a safe working load, plan on about 94 N of real work at 0.5 MPa, which lifts roughly 9.6 kg vertically with a 2:1 safety margin.
Airtac ACE Compact Cylinder ACE20X40B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE20X40B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 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 ACE20X40B
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 ACE20X40B Is Used
Fixture Clamping
Clamp small plastic housings in a CNC drilling fixture; the 157.1 N push holds parts firmly without distorting thin walls.
Label Applicator
Drive a label tamp head on a carton sealing line; the 40 mm stroke matches the label length and the compact body fits under the conveyor.
Guard Door Stop
Position a safety guard stop on a small assembly station; the short ISO 21287 body mounts inside the frame and the TPU bumper prevents noise.
Is the Airtac ACE Compact Cylinder ACE20X40B the Right Cylinder?
For lighter duty, the ACE16X40 offers 100.5 N push at 0.5 MPa, while stepping up to the ACE25X40 gives 245.4 N push for heavier parts. The M5x0.8 port suits small-bore air lines, and the fixed TPU bumper absorbs end-of-stroke impact without adjustment. This model has no magnet, so it cannot accept CMSE or DMSE sensors; order the -S code if you need position sensing.
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 ACE20X40B FAQ
At 0.5 MPa, push is 157.1 N and pull is 117.8 N. At 0.7 MPa, push is 219.9 N and pull is 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with proof pressure 1.5 MPa (215 psi).
No, this ACE20X40B has no magnet because it lacks the -S code. To use CMSE or DMSE reed or solid-state switches, you must order the cylinder with the optional -S magnet. The fixed TPU bumper only absorbs end-of-stroke energy; it does not hold a load in position.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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