Airtac ACED Double-acting Compact Cylinder ACED125X20B
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X20B 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 ACED125X20B
A double acting compact cylinder built to ISO 21287, the ACED125X20B pushes a 25 mm through-rod out of both covers on a 125 mm bore with a short 20 mm stroke. Because both strokes work on the rod-side area, output is a symmetric 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa in either direction. The male rod thread (B code) bolts straight to tooling, and the fixed TPU bumper at each end absorbs end-of-stroke shock. As a rough rule of thumb, plan on about 3534 N of usable work at 0.5 MPa, which is roughly 180 kg of vertical lift with a 2:1 margin.
The hard-anodized aluminium body with a roller-burnished bore and the S45C hard-chrome-plated rod shrugs off wear in high-cycle plants, and the short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into heavy clamping fixtures where a full-length body will not fit. The through-rod resists rotation and carries a symmetric mount, and the rear rod can drive a sensor flag. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi) with air filtered to 40 um. Note that no magnet is fitted on this code; order the -S version if you need CMSE / DMSE switch sensing.
Airtac ACED Double-acting Compact Cylinder ACED125X20B Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X20B |
|---|---|
| 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 ACED125X20B
| 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 ACED125X20B Is Used
Heavy press-fit station
The 5890.5 N symmetric output at 0.5 MPa seats bearings or bushings into housings on a short 20 mm throw, with the male thread taking the press tooling directly.
Stamping-die clamp
A foundry die-set clamp needs big force over minimal travel; the compact body fits inside the die shoe where an ISO 15552 profile cylinder would be far too long.
Pallet pusher arm
The rear rod drives a position flag while the front rod pushes pallets onto a conveyor, both directions delivering equal 8246.7 N force at 0.7 MPa.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X20B the Right Cylinder?
At 125 mm bore this is the top of the ACED range: 5890.5 N at 0.5 MPa both ways, versus 3769.9 N for a 100 mm bore if you can accept less force. The 20 mm stroke suits short-throw pressing and clamping; bore 125 takes standard strokes up to 300 mm if a later job needs more travel. The male rod thread (B) suits direct tooling attachment, and FA/FB flange or LB foot brackets bolt to the ISO 21287 face. Remember the piston drifts if air is lost, so add a rod lock or pilot check for a held load, and order the -S code if CMSE / DMSE position sensing is needed.
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 ACED125X20B FAQ
It is a double-rod, double acting cylinder, so force is identical both ways: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa (rod-side area on both strokes). At 1.0 MPa the rating is 1201.3 kgf maximum. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, and the 1/4" port depends only on the 125 mm bore.
The ISO 21287 compact body is hard-anodized aluminium with a fixed TPU bumper at each end, and it saves about 50% of the mounting length of an ISO 15552 profile cylinder. FA/FB flange and LB foot brackets plus I/Y rod knuckles bolt to the standard face. The B code gives a male rod thread; without it you get a female thread. This code has no magnet, so CMSE / DMSE switches require ordering the -S variant.
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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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