Airtac ACED Double-acting Compact Cylinder ACED125X55
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X55 is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 55mm 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
- Stroke55 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 ACED125X55
The ACED125X55 is a double acting, double-rod compact cylinder built to the ISO 21287 short-body format, with a 125 mm bore and a 55 mm stroke. A 25 mm hard-chrome-plated S45C rod exits both covers, so the piston resists rotation and side load and the output force is identical on each stroke: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, equal in both directions because both sides work on the rod-side area. The hard-anodized aluminium body is roller-burnished for wear, and a fixed TPU bumper at each end absorbs end-of-stroke energy.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why this heavy-force class fits into tight press fixtures and gantry frames. As a rule of thumb, plan on roughly 3534 N (about 360 kg) of usable push at 0.5 MPa rather than the full rating. The magnet is an option: order the -S code to enable CMSE / DMSE switches; without -S there is no magnet fitted. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi).
Airtac ACED Double-acting Compact Cylinder ACED125X55 Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X55 |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 55 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 ACED125X55
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×55 | 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 ACED125X55 Is Used
Aluminium extrusion clamp fixtures
The 5890.5 N through-rod force clamps extrusion profiles in machining fixtures, and the 55 mm stroke keeps the cylinder inside shallow fixture plates.
Stamping die gate actuation
Equal force both ways swings heavy die-change gates open and closed, while the back-end rod carries a position flag for the press interlock.
Pallet strapper press head
In packaging lines, the 125 mm bore drives a short-stroke strapping press head at 30-500 mm/s, with the TPU bumpers absorbing each stroke end.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X55 the Right Cylinder?
At 5890.5 N at 0.5 MPa this is the top of the ACED range; if your load needs less than about 3769.9 N, the 100 mm bore does the same job in a smaller envelope. The 55 mm stroke is well inside the 300 mm maximum standard stroke for this bore, so it ships as a standard build. Note that a plain double-rod cylinder drifts when air is lost - for a held load add a rod lock or pilot check valve. Mounting is via FA/FB flange, LB foot or FTC bracket, with I and Y rod knuckles on the twin rods; the female M16x2.0 rod thread and 1/4" PT ports are standard, and G ports can be ordered.
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 ACED125X55 FAQ
Because a rod exits both covers, output is equal in both directions: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa on each stroke, with a maximum of 1201.3 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) and proof pressure is 1.5 MPa (215 psi).
It is an ISO 21287 short-body unit, roughly 50% shorter in mounting length than an ISO 15552 profile cylinder, with a fixed TPU bumper at each end. Rod thread is female M16x2.0, ports are 1/4" PT (G optional), and mounting uses FA/FB flange, LB foot or FTC brackets. Position switches need the optional -S magnet code with CMSE / DMSE sensors - without -S no magnet is fitted.
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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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