
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X45B is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 45mm 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 ACED125X45B pushes a 125 mm bore through a 45 mm stroke and delivers 5890.5 N in BOTH directions at 0.5 MPa, because the rod-side area is the working face on each stroke. At 0.7 MPa that rises to 8246.7 N both ways, with a peak of 1201.3 kgf at 1.0 MPa. The male rod thread (B code) on each 25 mm rod accepts a knuckle or workpiece directly, and the 1/4" PT port feeds the big bore fast at speeds of 30-500 mm/s.
The hard-anodized aluminium body with an S45C hard-chrome plated rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this heavy thrust class fits short press fixtures and gantry frames. As a rule of thumb, plan on roughly 3534 N of usable push at 0.5 MPa (about 60% of rating), which lifts around 180 kg vertically - or about 90 kg with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke shock, and FA/FB flange, LB foot and FTC brackets bolt straight to the ISO 21287 face. Note: with no -S code there is no magnet, so no CMSE/DMSE switch can be read on this unit.
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X45B |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 45 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. |
| ×45 | 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 symmetric thrust and 45 mm stroke suit staking, riveting and marking heads on compact press frames where a full-length profile cylinder will not fit.
A rod exits both covers, so the front rod drives the tool while the rear rod carries a counterweight or sensor flag - useful on pick-and-place gantries over conveyor lines.
Equal force both ways lets one cylinder clamp and release with identical 8246.7 N-class force at 0.7 MPa on CNC fixture plates using FA flange mounting.
At 5890.5 N per direction at 0.5 MPa, this 125 mm bore sits at the top of the ACED range; step down to the 100 mm bore (3769.9 N) for lighter presses or up from the 80 mm bore (2356.2 N) when force is marginal. The 45 mm stroke is well inside the 300 mm maximum standard stroke for this bore, so it ships as a standard build. Remember the piston will drift if air is lost - for a held load add a rod lock or pilot check valve. Choose the -S ordering code instead if position sensing with CMSE/DMSE switches matters, and match FA/FB flange or LB foot mounts to your fixture.
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, peaking at 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, air filtered to 40 um, temperature -20 to +70 C. The 25 mm rod carries a male thread (B code) at each end and the port is 1/4" PT.
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, with an S45C hard-chrome rod and a fixed TPU bumper at each end that only decelerates the piston at stroke ends. FA/FB flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard face. Position sensing requires the optional -S magnet ordered with CMSE/DMSE switches; this non-S unit has no magnet, and it will not hold a load if air is lost.
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