Airtac ACED Double-acting Compact Cylinder ACED40X20SB
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X20SB is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- 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 ACED Double-acting Compact Cylinder ACED40X20SB
A double acting compact cylinder built to ISO 21287, the ACED40X20SB pushes a 12 mm rod out of BOTH covers, so thrust is identical on the extend and retract strokes: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, peaking at 116.6 kgf. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight pick-and-place gantries and guarded stations where a full-length body simply will not fit.
The through-rod resists rotation and light side load and gives a symmetric mount, and the rear rod can carry a sensor flag or a second tooling plate. Because this code carries the S option, the magnet is fitted and CMSE / DMSE reed or solid-state switches mount directly in the body slots. A fixed TPU bumper at each end absorbs end-of-stroke shock, the hard-anodized aluminium body runs on a hard-chrome S45C rod, and at 0.5 MPa you can plan on roughly 343 N of usable work, enough to lift about 29 kg vertically with a 2:1 margin.
Airtac ACED Double-acting Compact Cylinder ACED40X20SB Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X20SB |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 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 (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 572 N |
| 0.7 MPa | 800 N |
| Max (@1.0 MPa) | 117 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac ACED Double-acting Compact Cylinder ACED40X20SB
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 40 | 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 ACED Double-acting Compact Cylinder ACED40X20SB Is Used
Symmetric clamp fixture
The 571.8 N equal thrust on both rod ends lets one ACED40X20SB clamp a machined aluminium housing from two sides in a CNC fixture, with the male M8x1.25 threads taking standard tooling studs.
Conveyor pusher station
A 20 mm stroke is ideal for kicking cartons off a packaging line belt; the through-rod keeps the pusher plate square and the fitted magnet feeds a CMSE switch to confirm each push.
Battery-lift test rig
With about 29 kg of vertical lift capacity at a 2:1 margin, this cylinder raises forklift battery modules on an assembly-checking stand, the rear rod driving a DMSE-flagged position indicator.
Is the Airtac ACED Double-acting Compact Cylinder ACED40X20SB the Right Cylinder?
At 40 mm bore this sits above the 32 mm size (345.6 N at 0.5 MPa) and below the 50 mm size (881.2 N at 0.5 MPa), so choose it when a 32 mm unit is under-rated for your clamp or lift. The 20 mm stroke suits short-reach press, index and transfer motions; longer standard strokes run up to 200 mm on this bore if the job grows. Note that a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check valve if the load must stay put.
The B code gives a male M8x1.25 rod thread on both ends, and the port thread is PT with a 1/8" supply. FA/FB flanges, LB feet, FTC brackets and I/Y rod knuckles bolt straight to the ISO 21287 face, and the fitted -S magnet means CMSE / DMSE switches are ready to add without reordering.
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 ACED Double-acting Compact Cylinder ACED40X20SB FAQ
Yes - the double-rod design means both strokes use the rod-side area, so force is equal both ways: 571.8 N at 0.5 MPa, 800.5 N at 0.7 MPa, and a maximum of 116.6 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating, speed 30-500 mm/s, and air filtered to 40 um.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow guards and tight gantries. This -S version carries the optional magnet, so CMSE / DMSE reed or solid-state switches mount in the body slots. A fixed TPU bumper at each end absorbs end-of-stroke energy, and FA/FB flanges, LB feet, FTC brackets and I/Y knuckles bolt to the standard face.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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