Airtac ACED Double-acting Compact Cylinder ACED40X20B
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X20B 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 ACED40X20B
Double acting and double rod, the ACED40X20B pushes and pulls with the same 571.8 N at 0.5 MPa (800.5 N at 0.7 MPa) because a 12 mm rod leaves through both covers and every stroke works on the rod-side area. The 40 mm bore sits in a hard-anodized aluminium body that is about 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into cramped fixtures a full-length body cannot reach.
The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag on a jig or gantry. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the S45C hard-chrome rod runs at 30-500 mm/s. At 0.5 MPa plan on roughly 343 N of usable work, which lifts about 29 kg vertically with a 2:1 margin. No magnet is fitted; order the -S code if you need CMSE / DMSE switch sensing.
Airtac ACED Double-acting Compact Cylinder ACED40X20B Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X20B |
|---|---|
| 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 ACED40X20B
| 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 ACED40X20B Is Used
Symmetric clamp fixture
The equal 571.8 N force in both directions lets one ACED40X20B clamp and release a machined housing with identical grip, ideal for a CNC pallet clamp where pull force must match push.
Reciprocating slide drive
A rod at each end drives a pick-and-place slide from either side, resisting rotation and side load at 30-500 mm/s on a compact electronics assembly gantry.
Short-stroke press assist
With about 343 N of usable work and only 20 mm of travel, the cylinder suits a light staking or marking head on a tight bench-top fixture where length is limited.
Is the Airtac ACED Double-acting Compact Cylinder ACED40X20B the Right Cylinder?
At 571.8 N @0.5 MPa this 40 mm bore covers medium clamping and lift jobs; step down to the 32 mm bore (345.6 N) for lighter loads or up to the 50 mm bore (881.2 N) when the part is heavier. The 20 mm stroke is well inside the 200 mm maximum standard stroke for this bore. Like any plain double-rod cylinder it will drift if air is lost, so add a rod lock or pilot check for a held load. The B code gives a male M8x1.25 rod thread; flange, foot and other ISO 21287 brackets bolt straight on, and the optional -S magnet enables CMSE / DMSE switches.
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 ACED40X20B FAQ
Because it is a double-rod cylinder, force is equal in both directions: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa on every stroke, with a maximum of 116.6 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the 1/8" port depends only on the 40 mm bore.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and other brackets bolt straight to its face. A fixed TPU bumper at each end absorbs end-of-stroke energy but never locks or holds a load. Sensing needs the optional -S magnet ordered with the cylinder; without it no CMSE / DMSE switch can be mounted.
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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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