Airtac ACED Double-acting Compact Cylinder ACED125X55SB
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X55SB 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 ACED125X55SB
A double acting, double-rod compact cylinder built to ISO 21287, the ACED125X55SB pushes a 25 mm rod out of BOTH covers, so the 125 mm bore delivers an identical 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa in each direction - no push/pull imbalance to design around. The male rod thread (B code) suits external nuts and knuckles, and the PT 1/4" port feeds the big bore fast at speeds from 30-500 mm/s.
The hard-anodized aluminium body with an S45C hard-chrome-plated rod shrugs off wear in heavy-duty jigs, and its short ISO 21287 frame saves about 50% of the mounting length of an ISO 15552 profile cylinder - a real advantage when a 55 mm stroke press or clamp must fit inside a guarded machine frame. The through-rod resists rotation and side load and lets the rear rod carry a sensor flag, while fixed TPU bumpers at both ends absorb end-of-stroke shock. Plan on roughly 3534 N (about 360 kgf) of usable work at 0.5 MPa, or size vertical lifts to about 300 kg with a 2:1 margin.
Airtac ACED Double-acting Compact Cylinder ACED125X55SB Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X55SB |
|---|---|
| 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 ACED125X55SB
| 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 ACED125X55SB Is Used
Heavy stamping die clamp
The symmetric 5890.5 N clamping force in both directions lets one cylinder close a die on the forward rod and eject on the rear rod, with the 55 mm stroke clearing the die in a tight press frame.
Pallet lift-assist column
With about 300 kg of vertical lift capacity at a 2:1 margin, the through-rod carries the load plate on one end while the rear rod drives a position flag past CMSE switches for zone feedback.
Billet pusher on a hot-form line
The 25 mm hard-chrome rod and TPU end bumpers handle repeated 8246.7 N pushes at 0.7 MPa as billets enter the furnace conveyor, and the compact body slots under low guard rails.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X55SB the Right Cylinder?
At 5890.5 N per direction, this 125 mm bore covers heavy clamping and lifting that smaller compact cylinders cannot reach: a 100 mm bore ACED gives 3769.9 N at 0.5 MPa if the load is lighter, while the next step up would mean leaving the ISO 21287 range. The 55 mm stroke sits well inside the 300 mm maximum standard stroke for this bore, so it is a catalogue item, not a made-to-order build. 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 put. This model already carries the optional -S magnet, so CMSE / DMSE switches mount directly, and FA/FB flanges, LB feet or FTC brackets bolt to the standard 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 ACED125X55SB FAQ
Yes - the double-rod design exposes the rod-side area on both strokes, so output is equal each way: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, with a peak of about 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 air must be filtered to 40 um. The male rod thread is 25 mm rod on a 125 mm bore with a 55 mm stroke.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits where a full-length body will not. Fixed TPU bumpers at both ends absorb end-of-stroke shock without adjustment, FA/FB flange, LB foot and FTC brackets bolt straight to the standard face, and this model carries the -S magnet so CMSE / DMSE reed or solid-state switches can be clipped on for end-position sensing.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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