
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X70S is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø40mm bore and 70mm 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.
The ACED40X70S is a double acting AirTAC compact cylinder built to ISO 21287, with a piston rod leaving BOTH covers. Because each stroke works on the rod-side area, output is identical in either direction: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, peaking at 116.6 kgf at 1.0 MPa. The 40 mm bore drives a 12 mm through-rod over a 70 mm stroke, with air ports tapped 1/8" PT.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight guarding and fixture plates. A hard-anodized aluminium body runs against an S45C hard-chrome-plated rod, and fixed TPU bumpers at both ends absorb end-of-stroke shock. This S-coded unit carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches can be clipped onto the body slots for end-of-stroke signalling. For sizing, the through-rod at 0.5 MPa gives a vertical-lift equivalent of about 58 kg, or roughly 29 kg with a 2:1 margin; plan on about 343 N of real work rather than the full rating.
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X70S |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 70 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. |
| ×70 | 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 push and pull clamps a bracket from both sides of a jig, so one cylinder replaces a pair of single-rod units in tight fixture plates.
With the fitted magnet and a DMSE switch at each end, the 70 mm stroke confirms a machined housing is seated before the robot picks it.
Running at 30-500 mm/s between fixed TPU bumpers, the through-rod shuttles a gauge slide back and forth on an inspection bench with identical force both ways.
At 571.8 N per direction, bore 40 sits between the 32 mm size (345.6 N) and the 50 mm size (881.2 N) - pick 32 for lighter clamps, 50 when the load creeps up. The 70 mm stroke is well inside the 200 mm maximum standard stroke for this bore, so it ships as a catalogue item. The through-rod resists rotation and light side load and gives a symmetric mount, but it will not hold position if air is lost - add a rod lock or pilot check for a suspended load. FA/FB flanges, LB feet and FTC brackets bolt straight to the ISO 21287 face, and I or Y rod knuckles suit the 12 mm male threads.
Quick checklist
It is a double-rod cylinder, so force is equal in both directions: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa on each stroke, with a maximum of 116.6 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.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, ideal where space is tight. FA/FB flanges, LB feet and FTC brackets bolt to the standard face, and I/Y knuckles fit the M8x1.25 female rod threads. This model carries the optional -S magnet, so CMSE or DMSE switches can be fitted; a fixed TPU bumper at each end absorbs end-of-stroke impact.
Genuine AirTAC parts produced by AirTAC factory.
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