Airtac ACED Double-acting Compact Cylinder ACED125X300SB
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X300SB is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 300mm 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
- Stroke300 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 ACED125X300SB
The ACED125X300SB is a double acting, double-rod compact cylinder built to ISO 21287: a 125 mm bore with a 25 mm piston rod leaving both covers, so thrust is identical on every stroke - 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa in either direction. Because the rod-side area works both ways, you never derate the return stroke, and the through-rod resists rotation while the rear rod end accepts a sensor flag or a symmetric fixture mount. At the top of the ACED range this bore delivers up to 1201.3 kgf at 1.0 MPa.
The hard-anodized aluminium body with a roller-burnished bore and an S45C hard-chrome plated rod keeps wear low over long duty cycles, and a fixed TPU bumper at each end absorbs end-of-stroke shock. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters when a 300 mm stroke must fit inside a press frame or gantry. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it covers 30-500 mm/s between -20 and +70 C. As a rule of thumb, plan on roughly 3534 N of usable work at 0.5 MPa - about 360 kg held vertically with a 2:1 margin - rather than the full rating.
Airtac ACED Double-acting Compact Cylinder ACED125X300SB Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X300SB |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 300 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 ACED125X300SB
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×300 | 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 ACED125X300SB Is Used
Heavy press and forming stations
With 5890.5 N at 0.5 MPa available in both directions, the 125 mm bore drives small forming, staking or swaging heads in a compact press frame, and the 300 mm stroke clears deep dies.
Pallet and die-cart lift points
The through-rod gives a symmetric mount for scissor-linkage or lift-table pivots, and the rear rod can carry a position flag read by CMSE or DMSE switches on this -S model.
Foundry and forging fixture actuation
Up to 1201.3 kgf at 1.0 MPa in equal push and pull suits gate clamping and heavy fixture swings in hot, dusty cells, with the hard-anodized body resisting abrasive wear.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X300SB the Right Cylinder?
For heavy clamping, pressing or lifting where 5890.5 N at 0.5 MPa is more than the job needs, step down to the ACED80 (2356.2 N) or ACED100 (3769.9 N) at the same pressure; if the load exceeds this bore, confirm from datasheet whether a larger series is required, since 125 mm is the largest ACED bore. The 300 mm stroke sits exactly at the maximum standard stroke for bore 125, so no made-to-order length is needed. This unit carries the -S magnet, so CMSE or DMSE switches can be clipped into the body slots for end-position detection, and the male rod thread (B code) suits clevis or knuckle joints. Remember that a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check valve if the load must stay held. FA/FB flanges, LB feet and FTC brackets bolt straight to the ISO 21287 face.
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 ACED125X300SB FAQ
Yes - because a 25 mm rod exits both covers, both strokes use the rod-side area, so force is equal either way: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, with a maximum of 1201.3 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed range 30-500 mm/s, and the bore takes a 1/4" port with PT thread. The 300 mm stroke is the maximum standard stroke for this bore.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so a 300 mm stroke fits where a full-length body would not. A fixed TPU bumper at each end absorbs end-of-stroke energy; it is not adjustable and does not hold a load if air is lost. This version carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches can be mounted in the body slots; models ordered without -S have no magnet. Mounting uses FA/FB flanges, LB feet or FTC brackets on the standard ISO 21287 face, and the B code gives a male rod thread.
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