Airtac ACED Double-acting Compact Cylinder ACED125X120S
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X120S 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 ACED125X120S
A double acting compact cylinder built to ISO 21287, the ACED125X120S pushes a 125 mm bore through a 120 mm stroke with a rod leaving BOTH covers. Because each side works on the rod-side area, output is identical in both directions: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, with a peak of 1201.3 kgf at 1.0 MPa. The through-rod resists rotation and side load, and the rear rod can carry a sensor flag or a second tool. The S code means the magnet is fitted, so CMSE / DMSE reed or solid-state switches mount directly in the body slots.
The hard-anodized aluminium body with a roller-burnished bore runs an S45C hard-chrome plated rod, and a fixed TPU bumper at each end absorbs end-of-stroke shock. The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why this force class fits into presses, gantries and heavy jigs that cannot spare the length. In practice, plan on roughly 3534 N of real work at 0.5 MPa, and for vertical duty the rod lifts about 300 kg with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
Airtac ACED Double-acting Compact Cylinder ACED125X120S Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X120S |
|---|---|
| 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 ACED125X120S
| 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 ACED125X120S Is Used
Heavy fixture clamping
Clamps large weldments or castings on a machining fixture with 5890.5 N of force in BOTH directions, so the same cylinder can clamp and release against equal force without swapping models.
Press and stamping assist
The 120 mm stroke and about 300 kg vertical lift capacity (with a 2:1 margin) suit short-stroke pressing, staking or ejection of heavy parts where a full-length profile cylinder will not fit.
Reciprocating heavy slides
The through-rod resists rotation and side load on heavy linear slides, and the fitted magnet with CMSE / DMSE switches gives position feedback at both ends of travel.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X120S the Right Cylinder?
At 5890.5 N per direction this is the top of the ACED range; step down to the 100 mm bore (3769.9 N at 0.5 MPa) for lighter clamping, or stay here when a 125 mm bore is already specified in the fixture. The 120 mm stroke sits well inside the 300 mm maximum standard stroke for this bore, so it is a catalogue item. 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. FA/FB flange, LB foot and FTC brackets plus I/Y rod knuckles bolt straight to the ISO 21287 face, and the fitted -S magnet accepts CMSE / DMSE switches for end-of-stroke signalling.
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 ACED125X120S FAQ
Because a rod exits both covers, force is EQUAL in both directions: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa on the rod-side area, peaking at 1201.3 kgf at 1.0 MPa. There is no larger push figure - both strokes use the same area. 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 120 mm stroke is within the 300 mm maximum standard stroke for the 125 mm bore.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so a 125 mm bore fits where only a compact cylinder can. A fixed TPU bumper at each end absorbs end-of-stroke energy. The S in ACED125X120S means the optional -S magnet is fitted, so CMSE / DMSE reed or solid-state switches can be clipped into the body slots for end-of-stroke detection. Air port is 1/4" (PT) and the female rod thread is M16x2.0.
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Genuine AirTAC parts produced by AirTAC factory.
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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