Airtac ACED Double-acting Compact Cylinder ACED125X20S
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X20S is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 20mm stroke, 1/4" 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.
- BoreØ125 mm
- Stroke20 mm
- Port size1/4"
- Acting typeDouble acting, double rod
- Rod threadM16×2.0
- 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 ACED Double-acting Compact Cylinder ACED125X20S
A double acting compact cylinder built to ISO 21287, the ACED125X20S pushes a 25 mm rod out of BOTH covers, so thrust is identical on every stroke: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, equal in both directions because each side works on the rod-side area. The 125 mm bore tops the ACED range with a peak rating of 1201.3 kgf at 1.0 MPa, and the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting this much force fit inside presses, clamping gantries and machine guards where a full-length body will not go.
The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag or a second tooling plate. This S-coded model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount directly in the body slots for end-of-stroke signalling. A fixed TPU bumper at each end absorbs stroke-end shock, the hard-anodized aluminium body runs on an S45C hard-chrome-plated rod, and speed spans 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). For planning, keep real work near 3534 N at 0.5 MPa - roughly 360 kg of usable push - and the rod-side force equates to lifting about 300 kg vertically with a 2:1 margin.
Airtac ACED Double-acting Compact Cylinder ACED125X20S Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X20S |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod |
| Port size | 1/4" |
| Rod thread | M16×2.0 |
| 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 300 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 (Ø125mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 5890 N |
| 0.7 MPa | 8247 N |
| Max (@1.0 MPa) | 1201 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 ACED125X20S
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | 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 ACED125X20S Is Used
Heavy press-fit and staking stations
The short 20 mm stroke and 5890.5 N of symmetric thrust suit automotive bushing or bearing staking where the fixture depth is limited and equal force is needed on return.
Clamping of large castings on machining lines
Engine-block or gearbox-housing clamps gain from the through-rod: the rear rod carries a second clamp pad or sensor flag, and the compact body fits inside the fixture riser.
Guided vertical lift-and-lower modules
With about 300 kg of vertical lift capacity at a 2:1 margin, the double rod resists rotation on pallet lift stations, and CMSE switches via the -S magnet confirm up and down positions.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X20S the Right Cylinder?
At 5890.5 N per direction at 0.5 MPa, bore 125 is the top of the ACED line; step down to bore 100 (3769.9 N) for lighter clamps or up to larger custom bores if 8246.7 N at 0.7 MPa is still short. The 20 mm stroke is well inside the 300 mm maximum standard stroke for this bore. Note that a plain double-rod cylinder drifts when air is lost - for a held load add a rod lock or pilot check valve. FA/FB flange, LB foot and FTC brackets plus I/Y rod knuckles bolt straight to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report position. Female M16x2.0 rod thread, 1/4" PT ports.
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 ACED125X20S FAQ
Because a rod exits both covers, output is EQUAL both ways: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa on every stroke, using the rod-side area. Peak rating is 1201.3 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the 20 mm stroke sits well within the 300 mm maximum standard stroke for bore 125.
The S means the optional -S magnet is fitted on this unit, so CMSE / DMSE reed or solid-state switches can be clipped into the body slots for position feedback; models ordered without -S carry no magnet. The ISO 21287 compact body is hard-anodized aluminium with an S45C hard-chrome-plated 25 mm rod, a fixed TPU bumper at each end absorbs stroke-end shock, and the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder. Female M16x2.0 rod thread, 1/4" PT ports, FA/FB flange, LB foot and FTC mounting options.
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Standard models are processed and dispatched in 3-5 business days.
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