
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X5SB is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 5mm 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.
The ACED125X5SB is a double acting, double-rod compact cylinder built to the ISO 21287 short-body format. A 25 mm hard-chrome plated rod exits BOTH covers, so thrust is identical on every stroke: 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, whichever way the piston moves. At the top of the ACE range this 125 mm bore delivers roughly 600 kgf of raw force, and the through-rod resists rotation and side load while giving a symmetric mounting face at each end.
The hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this heavy-force unit still fits short press heads and clamping bridges. Plan on about 3534 N (roughly 360 kgf) of real work at 0.5 MPa, which lifts about 300 kg vertically with a 2:1 margin. The -S magnet is fitted on this model, so CMSE / DMSE switches can be mounted directly in the body slots, and the male B-code rod thread bolts straight to your tooling.
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X5SB |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 5 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. |
| ×5 | 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.
A 5 mm kick on a bench press head adds 5890.5 N of final clinch force at 0.5 MPa without lengthening the machine frame.
The through-rod carries the clamp finger on both ends of a machining-fixture bridge, gripping a cast housing with equal force from either side.
A back-end rod drives a sensor flag for CMSE switches while the front rod ejects formed parts, both strokes at 8246.7 N at 0.7 MPa.
For a 5 mm short-stroke clamp or press boost at this force class, the ACED125X5SB is the ceiling of the range; step down to the ACED100X5SB (3769.9 N at 0.5 MPa) if the load is lighter, or move to a longer-stroke ACED125 model for travel beyond 5 mm. The 1/4" port and PT thread suit standard pneumatic fittings. Remember that a plain double-rod cylinder drifts when air is lost, so pair it with a rod lock or pilot check valve if the load must stay held. FA/FB flange, LB foot and FTC brackets plus I/Y rod knuckles bolt directly to the ISO 21287 face.
Quick checklist
Yes - the double-rod design means both strokes use the rod-side area, so output is equal both ways: 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), and speed range 30-500 mm/s on air filtered to 40 um.
The -S magnet is fitted on this model, so CMSE reed or DMSE solid-state switches click into the body slots for end-of-stroke signals. FA/FB flanges, LB feet and FTC brackets plus I and Y rod knuckles mount on the standard ISO 21287 face. The fixed TPU bumper at each end absorbs end-of-stroke energy, and the body is about 50% shorter than an ISO 15552 profile cylinder.
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