This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X150B, 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 ACPD20X150B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X150B (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPD20X150B is a double acting, double-rod compact cylinder in the DIN-standard ACP family: a rod exits both covers of the hard-anodized aluminium body, so the through-rod resists rotation and side load and gives a symmetric mount, and the back-end rod can carry a sensor flag. Because both strokes use the rod-side area, output is equal in each direction - 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa. The 150 mm stroke exceeds the 100 mm standard maximum for bore 20, so it is a made-to-order build.
This model is discontinued. The current-production replacement is the ISO 21287 ACED20X150, a direct successor in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows the DIN standard. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, the male rod thread (B code) suits external knuckles, and fixed TPU bumpers decelerate at both ends. Speed range is 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). Note: no magnet is fitted on this code, so no CMSE / DMSE switch can be mounted - order the optional -S magnet if position sensing is needed.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X150B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X150B |
| Bore size | Ø20 mm |
| Stroke | 150 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 ACED20X150B (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. |
| ×150 | 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 through-rod drives a fixture plate from both ends on a lab press rig, giving 117.8 N in each direction at 0.5 MPa for repeat push-pull cycling at up to 500 mm/s.
On a packaging machine guard interlock, the rear rod carries a flag past a switch bay (order the -S magnet code for CMSE / DMSE switches) while the front rod does the work.
Where a full-length ISO 15552 profile cylinder will not fit between gantry uprights, the short body saves about 50% of mounting length and still ejects small machined parts with about 70 N of usable force.
Size both ways: if 117.8 N per side at 0.5 MPa is marginal, step up to bore 25 (206.2 N both ways); if the load is lighter, bore 16 delivers 75.4 N and shortens the body further. A plain double-rod cylinder does not hold position when air is lost - the piston drifts - so add a rod lock or pilot check for a held load. FA/FB flange and LB foot mountings bolt to the standard face. This unit is discontinued; specify ACED20X150 as the current direct and verify the ISO 21287 mounting dimensions.
Replacement checklist
Yes - the double-rod design means both strokes use the rod-side area, so force is equal both ways: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, with a maximum of 24.0 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, and the 150 mm stroke is a made-to-order length above the 100 mm standard maximum for bore 20.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and a fixed TPU bumper at each cover simply decelerates the piston at end of travel - it is not adjustable and never holds a load. The ACPD20X150B is discontinued; the current-production direct is ACED20X150 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, and order the optional -S magnet if you need CMSE / DMSE switch sensing.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X150B replacement — usually within 7-8 hours.