
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X70 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.
A double acting compact cylinder built to ISO 21287, the ACED40X70 pushes a 40 mm bore through a 70 mm stroke with a piston rod leaving BOTH covers. Because each stroke works on the rod-side area, output is identical either way: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa. The through-rod also fights rotation and side load, and the rear rod can carry a sensor flag on a pick-and-place arm.
The hard-anodized aluminium body with a hard-chrome S45C rod keeps the envelope short - roughly 50% of the mounting length of an ISO 15552 profile cylinder - so it slots into guarded assembly stations where a full-length body cannot. A fixed TPU bumper at each end softens end-of-stroke contact, speed spans 30-500 mm/s, and pressure runs 0.15-1.0 MPa (22-145 psi). For planning, treat about 343 N (0.6 of the 0.5 MPa rating) as the usable working force, which lifts roughly 29 kg vertically with a 2:1 margin.
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X70 |
|---|---|
| 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.
Clamps a machined aluminium housing in a CNC drilling jig from either side with equal 571.8 N force, so the part stays centered without a counter-bore cylinder.
Drives a 70 mm shuttle on a small-parts conveyor lane; the through-rod resists the side load of off-center trays at 30-500 mm/s cycle speeds.
Ejects finished bushings from a compact assembly die, where the short ISO 21287 body fits inside the die shoe and the fixed TPU bumpers absorb the break-out jolt.
At 571.8 N per direction, the 40 mm bore sits between the 32 mm (345.6 N) and 50 mm (881.2 N) options - choose 32 mm for lighter clamping, 50 mm when the load creeps up. The 70 mm stroke is well inside the 200 mm standard maximum for this bore, so no made-to-order build is needed. Mount with FA/FB flange, LB foot or FTC brackets plus I/Y rod knuckles on the ISO 21287 face. This code has no magnet: add the optional -S to enable CMSE / DMSE switches. Remember the piston drifts if air is lost - use a rod lock or pilot check where a load must stay put.
Quick checklist
Yes - the double-rod design exposes the rod-side area on both strokes, so output is equal each way: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, peaking at 116.6 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, on air filtered to 40 um.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end and FA/FB, LB or FTC mounting plus I/Y knuckles. Sensing needs the optional -S magnet in the ordering code; only then can CMSE / DMSE switches be used - this standard code carries no magnet.
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