Airtac ACED Double-acting Compact Cylinder ACED125X120SB
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X120SB is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 120mm 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
- Stroke120 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 ACED125X120SB
A double acting compact cylinder built to ISO 21287, the ACED125X120SB pushes a 25 mm rod out of BOTH covers, so thrust is identical on the forward and return stroke: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa. That is the largest force class in the ACED range, suited to heavy press-fit, clamping and lifting duties. The male rod thread (B code) bolts straight to your tooling, and the 1/4" port keeps air supply adequate at 30-500 mm/s.
The hard-anodized aluminium body with an S45C hard-chrome plated rod shrugs off wear in dirty plant air, and the short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder - valuable when a 120 mm stroke must fit inside a guarded press frame or weld fixture. The through-rod resists rotation and side load and gives a symmetric mount, so the rear rod can carry a sensor flag or a second tool. Because this model carries the optional -S magnet, CMSE / DMSE switches mount directly on the body slots. At 0.5 MPa the usable working thrust is roughly 3534 N, which lifts about 360 kg vertically - or 180 kg with a 2:1 margin - so match your part weight accordingly.
Airtac ACED Double-acting Compact Cylinder ACED125X120SB Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X120SB |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 120 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 ACED125X120SB
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×120 | 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 ACED125X120SB Is Used
Heavy press and staking fixtures
With 5890.5 N available in both directions at 0.5 MPa, the 125 mm bore drives staking, riveting and press-fit heads where the return stroke must strip the tool off the part with equal force.
Pallet lift-and-lower stations
The through-rod gives a symmetric top-and-bottom mount, and the roughly 360 kg vertical lift equivalent at 0.5 MPa handles loaded pallets or die sets in machining cells; add a pilot check if the load must stay up on air loss.
Clamping on large weld fixtures
The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so a 120 mm stroke clamp fits inside tight fixture rails, while CMSE switches on the -S magnet confirm clamp and unclamp to the PLC.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X120SB the Right Cylinder?
At 125 mm bore this is the top of the ACED line: 5890.5 N at 0.5 MPa versus 3769.9 N for the 100 mm bore and 2356.2 N for the 80 mm bore. If your load needs less than about 3500 N of real work, step down to the 100 mm frame and save air consumption. The 120 mm stroke sits well inside the 300 mm maximum standard stroke for this bore, so it ships as a catalogue item. Remember the piston drifts if air is lost - add a rod lock or pilot check valve where a held load matters. FA/FB flanges, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard ISO 21287 face, and the -S magnet on this unit lets you position CMSE / DMSE switches anywhere along the body slots.
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 ACED125X120SB FAQ
Because a rod exits both covers, both strokes use the rod-side area, so force is equal in both directions: 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 30-500 mm/s, and the fixed TPU bumper absorbs end-of-stroke energy at each end.
This unit carries the optional -S magnet, so CMSE reed or DMSE solid-state switches clip into the slots around the hard-anodized aluminium body for end-of-stroke or mid-stroke signals. Mounting uses the standard ISO 21287 face: FA/FB flanges, LB foot or FTC brackets, plus I and Y rod knuckles on the male-threaded 25 mm rods. Outline dimensions beyond the datasheet tables: confirm from datasheet.
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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.
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Most inquiries answered within 7-8 hours.
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