This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X15SB, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.

The AirTAC ACPD Double Rod Compact Cylinder ACPD20X15SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X15SB (ISO 21287 ACE), in the same bore, stroke and force class.
This is a double acting, double-rod compact cylinder: a 10 mm rod exits both covers of the hard-anodized aluminium body, so the output force is equal in both directions because both strokes work on the rod-side area. At 0.5 MPa the 20 mm bore delivers 117.8 N either way, rising to 164.9 N at 0.7 MPa. The 15 mm stroke suits short-reach tooling, and the through-rod resists rotation and side load while the rear rod can carry a sensor flag. Speed range is 30-500 mm/s with a fixed TPU bumper at each end.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits tight jigs and guards. This model carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches can be mounted directly on the body. Note that ACPD is discontinued: the current-production direct is ACED20X15, so confirm the ISO 21287 mounting dimensions before swapping. As a rule of thumb, plan on about 70 N (roughly 7 kg of thrust) of real work at 0.5 MPa rather than the full rating.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X15SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X15SB |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED20X15SB (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
The 117.8 N per-direction force at 0.5 MPa clamps small aluminium or plastic workpieces in drilling and milling jigs, with the 15 mm stroke clearing the part quickly.
Mount the through-rod across a narrow conveyor to divert cartons or trays; the rear rod gives a symmetric mount and a place for a sensor flag when the -S magnet is used.
Compact bench testers and go/no-go gauges use the short body where a full-length profile cylinder will not fit, with CMSE or DMSE switches reporting end positions.
For a 15 mm stroke at this force class, 117.8 N per direction at 0.5 MPa covers light clamping and part transfer. If your load needs more, step up to bore 25 (206.2 N at 0.5 MPa); if less, bore 16 gives 75.4 N. Like any plain double-rod cylinder it will drift when air is lost, so add a rod lock or pilot check for a held load. The male rod thread (B code) and PT ports are standard here, and the fitted -S magnet accepts CMSE / DMSE switches. Order ACED20X15 as the current replacement and verify ISO 21287 mounting dimensions.
Replacement checklist
Because a rod exits both covers, the force is equal both ways: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, based on the rod-side area. Maximum force at 1.0 MPa is 24.0 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed 30-500 mm/s.
The ISO 21287-class compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow guards, gantries and jigs. FA/FB flange and LB foot mounts bolt to the standard face. The ACPD family is discontinued; the current-production direct is ACED20X15 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, since ACP is DIN-standard, and remember the magnet here is the optional -S code, not a default.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X15SB replacement — usually within 7-8 hours.