
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X50 is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 50mm 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.
A double acting, double-rod ISO 21287 compact cylinder, the ACED125X50 pushes a 125 mm piston through a 50 mm stroke with a rod leaving both covers. Because each side of the piston sees the rod-side area, output is identical in either direction: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa. The through-rod resists rotation and side load, and the rear rod can carry a sensor flag or a second tooling plate.
The hard-anodized aluminium body with an S45C hard-chrome-plated rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, and -20 to 70 C. The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters when a 125 mm bore must fit inside a press frame or gantry. Fixed TPU bumpers absorb end-of-stroke shock at both covers. For planning, treat roughly 3534 N (about 360 kg of push) as the practical working force at 0.5 MPa, and expect roughly 300 kg of vertical lift capability with a 2:1 margin.
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X50 |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 50 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.
| 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).
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×50 | 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.
The 5890.5 N stroke at 0.5 MPa drives staking, riveting and crimp heads on aluminium extrusion or sheet-metal assemblies, with equal force on the return stroke to strip the tool clear.
A 50 mm stroke suits swing clamps and top clamps on CNC machining fixtures for cast-iron housings, where the short ISO 21287 body fits under the fixture lid.
Rods on both ends let one side drive a heavy die cart or lift table while the rear rod carries a position flag, keeping the 1201.3 kgf-class unit symmetric under load.
At 125 mm bore this is the top of the ACED range; the next size down, the 100 mm bore, delivers 3769.9 N at 0.5 MPa, so step up to 125 mm when a 100 mm unit runs short of force. The 50 mm stroke sits well inside the 300 mm maximum standard stroke for this bore. Female M16x2.0 rod thread and 1/4" PT ports come as coded; add FA/FB flange or LB foot brackets plus I/Y rod knuckles to match the fixture. Remember that a plain double-rod cylinder drifts when air is lost, so specify a rod lock or pilot check valve for a held load. If position feedback is needed, order the -S variant so CMSE / DMSE switches can ride the body slots; this model has no magnet fitted.
Quick checklist
Yes. As a double-rod cylinder, both strokes use the rod-side area, so output is equal either way: 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. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, -20 to 70 C.
It is an ISO 21287 compact cylinder whose hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder. Fixed TPU bumpers at both covers absorb end-of-stroke impact. FA/FB flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard face. The magnet is the optional -S code; this model has none, so CMSE / DMSE switches require ordering ACED125X50S.
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