Airtac ACED Double-acting Compact Cylinder ACED40X120S
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X120S is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø40mm bore and 120mm 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
- Stroke120 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 ACED40X120S
A double acting compact cylinder with a rod leaving both covers, the ACED40X120S delivers 571.8 N in each direction at 0.5 MPa because both strokes work on the rod-side area of the 40 mm bore. At 0.7 MPa that rises to 800.5 N, and the peak rating is 116.6 kgf at 1.0 MPa. The through-rod resists rotation and light side load, and the free back-end rod is a handy place to carry a sensor flag on a gantry or pick-and-place axis.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight machine frames and guarding where a full-length body will not fit. The hard-anodized aluminium barrel carries a hard-chrome plated S45C rod, a fixed TPU bumper sits at each end to soften end-of-stroke impact, and the fitted -S magnet lets CMSE / DMSE switches report position. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi).
Airtac ACED Double-acting Compact Cylinder ACED40X120S Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X120S |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 120 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 ACED40X120S
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×120 | 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 ACED40X120S Is Used
Symmetric jig clamping
The equal 571.8 N force in both directions lets one ACED40X120S clamp and then retract a fixture nest on a CNC line with identical push and pull, no oversizing needed.
Transfer slide between stations
A through-rod on both ends of a 120 mm stroke moves pallets between two assembly stations, with the rear rod driving a CMSE-switched position flag.
Press-fit ejection
Ejecting bushings from a press die needs about 35 kg of vertical muscle - the 40 mm bore covers it at 0.5 MPa while the short body fits under the bolster.
Is the Airtac ACED Double-acting Compact Cylinder ACED40X120S the Right Cylinder?
At 571.8 N per direction this 40 mm bore sits between the 32 mm (345.6 N) and 50 mm (881.2 N) sizes, so step down for lighter clamping or up when the tooling weighs more. The 120 mm stroke is well inside the 200 mm maximum standard stroke for this bore, so it ships as a catalogue item. Plan on roughly 343 N of usable push at 0.5 MPa, which is about 35 kg lifted vertically with a 2:1 margin. Note that the piston drifts when air is lost - add a rod lock or pilot check if the load must stay put. FA/FB flange, LB foot and FTC brackets bolt to the ISO 21287 face, and the female M8x1.25 rod thread takes standard knuckles.
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 ACED40X120S FAQ
Yes - the double-rod design means a rod exits both covers, so both strokes use the rod-side area and output is equal in each direction: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, peaking at 116.6 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, speed 30-500 mm/s and -20 to +70 C.
The S is the optional -S magnet code, so this model carries the magnet and accepts CMSE / DMSE reed or solid-state switches anywhere along the body slots. Mechanically it is an ISO 21287 compact cylinder: hard-anodized aluminium barrel, hard-chrome S45C rod, fixed TPU bumpers at both ends, and a body about 50% shorter in mounting length than an ISO 15552 profile cylinder. FA/FB flange, LB foot and FTC mounts bolt straight on; the rod end is female M8x1.25 with a 1/8" PT port.
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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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Most inquiries answered within 7-8 hours.
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