
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X120B is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø40mm bore and 120mm stroke, 1/8" 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 compact cylinder built to ISO 21287, the ACED40X120B pushes a 12 mm rod out of BOTH covers, so the 40 mm bore delivers an identical 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa on every stroke - no push/pull imbalance to design around. The male rod thread (B code) bolts straight to tooling, and the through-rod resists rotation and light side load while the free back-end rod can carry a sensor flag or a second fixture.
The hard-anodized aluminium body with an S45C hard-chrome plated rod runs 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, with a fixed TPU bumper at each end. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, this 120 mm stroke model slots into tight jigs and guarding. Practical sizing: keep real work near 343 N (about 0.6 of the rating), which is roughly 17 kg of vertical lift with a 2:1 margin.
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X120B |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 120 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 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 | 572 N |
| 0.7 MPa | 800 N |
| Max (@1.0 MPa) | 117 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). |
|---|---|
| 40 | 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.
The equal 571.8 N force in both directions lets one ACED40X120B clamp a machined aluminium housing from either side of a CNC fixture without recalculating pull force.
A rod on each cover of the 40 mm bore resists rotation on a 120 mm shuttle stroke, keeping a vision-camera carriage square to the part at 30-500 mm/s.
The back-end rod drives a flag for a PLC counter while the front rod pushes cases off a conveyor; the compact body fits the narrow guard space beside the belt.
At 571.8 N @0.5 MPa this 40 mm bore sits between the 32 mm (345.6 N) and 50 mm (881.2 N) double-rod units - step down for lighter clamps, up for heavier presses. The 120 mm stroke is well inside the 200 mm standard limit for bore 40, so no made-to-order build is needed. FA/FB flanges, LB feet and FTC brackets plus I/Y rod knuckles mount on the ISO 21287 face. Note: with no -S code there is no magnet, so no CMSE/DMSE switch can be fitted - order ACED40X120BS if position sensing is required. If the load must stay put when air is lost, add a rod lock or pilot check; the cylinder itself will drift.
Quick checklist
Yes - it is a double-rod cylinder, so both strokes use the rod-side area of the 40 mm bore: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, equal extend and retract. At 1.0 MPa the peak is 116.6 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speed is 30-500 mm/s.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so the 120 mm stroke fits shallow machines. The B code gives a male M8x1.25-class rod thread for direct tooling attachment, with a 1/8" PT port and fixed TPU bumpers at both ends. The optional -S magnet enables CMSE/DMSE switches; without it no sensor can be mounted.
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