Airtac ACE Compact Cylinder ACE20X40SB
The AirTAC Airtac ACE Compact Cylinder ACE20X40SB 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 ACE20X40SB
This AirTAC ACE20X40SB is a double acting compact cylinder with a 20 mm bore and 40 mm stroke, delivering 157.1 N of push force at 0.5 MPa. Its short ISO 21287 body takes up about 50% less mounting length than an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where space is limited.
The hard-anodized aluminium body and S45C hard-chrome plated rod resist wear in continuous cycling. The optional -S magnet is fitted here, so you can mount CMSE or DMSE reed or solid-state switches for position sensing. For a real-world load, plan for about 94 N of usable force at 0.5 MPa, which lifts roughly 9.6 kg vertically with a 2:1 safety margin.
Airtac ACE Compact Cylinder ACE20X40SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE20X40SB |
|---|---|
| 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 ACE20X40SB
| 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 ACE20X40SB Is Used
Compact Jig Clamping
Use in a CNC fixture to clamp small parts with 157.1 N force, fitting into a tight envelope where a longer cylinder would interfere with tool paths.
Label Applicator Press
Drive a light label applicator head in a packaging line, cycling at up to 500 mm/s to apply labels to cartons with consistent pressure.
Guard Door Interlock
Actuate a small safety guard latch on a machine enclosure, using the compact body to fit within the door frame and the optional magnet to confirm position.
Is the Airtac ACE Compact Cylinder ACE20X40SB the Right Cylinder?
For lighter duty, the ACE16X40 offers 100.5 N push at 0.5 MPa, while the ACE25X40 steps up to 245.4 N push. This 20 mm bore is a middle ground for small actuators on pick-and-place arms or light clamping fixtures. The male rod thread (B code) simplifies mounting with rod-end accessories, and the M5x0.8 port suits small-bore air lines. Remember, this cylinder does not hold position when air is removed; use a rod lock or pilot check valve if load holding is required.
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 ACE20X40SB FAQ
At 0.5 MPa, push is 157.1 N and pull is 117.8 N. At 0.7 MPa, push rises to 219.9 N and pull to 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. These figures apply to the 20 mm bore with a 10 mm rod.
The ACE20X40SB uses a short, hard-anodized aluminium body that saves about 50% of the mounting length compared to an ISO 15552 profile cylinder. This lets you install it in tight spaces like inside guarding or between machine frames. The fixed TPU bumper absorbs end-of-stroke impact, and the optional -S magnet enables CMSE or DMSE switches for position feedback.
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Covers non-human-caused product damage.
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