This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X15SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X15SB in place of this model. 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 Airtac ACPD Double Rod Compact Cylinder ACPD50X15SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 15mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X15SB (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD50X15SB pushes and pulls with identical force because each stroke works on the rod-side area: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction. The 50 mm bore drives a 16 mm through-rod with a male thread (B code) on both ends, and the short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight press fixtures and slide units. Air supply runs 0.15-1.0 MPa (22-145 psi) with speeds of 30-500 mm/s.
This specific unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signalling without external flags. A fixed TPU bumper sits at each end to soften arrival, and the back-end rod doubles as a rotation-resistant guide or a sensor-flag carrier. Note that the ACPD family is discontinued: the current-production drop-in is the ACED50X15, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping. As a sizing rule, treat about 529 N (roughly 27 kg lifted vertically with a 2:1 margin) as the usable working force at 0.5 MPa rather than the full 881.2 N rating.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X15SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X15SB |
| Bore size | Ø50 mm |
| Stroke | 15 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED50X15SB (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 | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 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). |
|---|---|
| 50 | 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 (adjustable stroke).
The 15 mm throw and 881.2 N clamping force at 0.5 MPa suit a vise-style clamp holding an aluminium housing during a milling or drilling cycle, with the through-rod resisting side load.
A 15 mm kick is enough to nudge cartons off a conveyor lane; the equal 881.2 N in both directions lets one cylinder serve as a reject pusher regardless of approach side.
With the -S magnet fitted, CMSE or DMSE switches confirm clamp-open and clamp-closed states on a robotic load station, while the rear rod carries a secondary flag for PLC interlocks.
At 15 mm stroke this is a short-throw clamping or ejecting actuator. If 881.2 N at 0.5 MPa is more than the job needs, the ACPD40 at 571.8 N covers lighter clamps; if the part is heavier, step up to the ACPD63 at 1458.1 N. Remember the piston drifts when air is lost, so add a rod lock or pilot check valve for any held load. FA/FB flange and LB foot mounts bolt to the standard face, and the male rod thread takes I/Y knuckles directly. Order the ACED50X15 as the current replacement and verify the ISO 21287 hole pattern first.
Replacement checklist
Yes - because a rod exits both covers, both strokes use the rod-side area. Output is 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction, with a maximum of 179.7 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, and the 1/8" port is fixed by the 50 mm bore.
Order the ACED50X15, the current-production ISO 21287 successor: swap the P for an E and you get the same 50 mm bore, 15 mm stroke and force class in a matching short body. Confirm the ISO 21287 mounting dimensions against your fixture before the swap, since the ACP was built to a DIN-standard footprint. The ACED also accepts FA/FB flange and LB foot hardware and supports CMSE / DMSE switches when the magnet option is specified.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X15SB replacement — usually within 7-8 hours.