This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X65SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X65SB 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 ACPD50X65SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 65mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X65SB (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod exiting both covers, the ACPD50X65SB delivers 881.2 N in each direction at 0.5 MPa (1233.7 N at 0.7 MPa) because both strokes work on the rod-side area of the 50 mm bore. The 16 mm through-rod resists rotation and side load, gives a symmetric mount, and lets the rear rod carry a sensor flag. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped straight on.
The hard-anodized aluminium body follows the ISO 21287 short format, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder, which matters in tight jigs and gantries. A fixed TPU bumper sits at each end, and the male rod thread (B code) with 1/8" PT ports keeps plumbing simple. Note this model is discontinued: the current-production drop-in is the ACED50X65, same bore, stroke and force class, so confirm ISO 21287 mounting dimensions before swapping. As a planning figure, treat about 529 N (roughly 54 kg) as the usable working force at 0.5 MPa.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X65SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X65SB |
| Bore size | Ø50 mm |
| Stroke | 65 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 ACED50X65SB (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. |
| ×65 | 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 881.2 N through-rod clamps aluminium die-cast housings from both ends on a machining fixture, keeping the fixture footprint short enough for a crowded CNC table.
A 65 mm stroke pushes cartons off a conveyor with the front rod while the rear rod trips a CMSE switch flag, using the same 50 mm bore for balanced force both ways.
The male-threaded 16 mm rod drives a small test press platen at 30-500 mm/s, where the short ISO 21287 body fits inside a guarded bench-top frame.
At 881.2 N per direction, the 50 mm bore sits between the 40 mm (571.8 N) and 63 mm (1458.1 N) options at 0.5 MPa, so step down if force is generous or up to the 63 mm for heavier clamping. The through-rod suits symmetric tooling, and the male thread accepts standard rod knuckles. Remember a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must stay put. For new builds, order the ACED50X65 instead, as this ACPD version is discontinued.
Replacement checklist
Because a rod exits both covers, force is equal in both directions: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, with a maximum of 179.7 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 65 mm stroke sits well inside the 250 mm maximum standard stroke for the 50 mm bore.
The hard-anodized aluminium body follows the ISO 21287 compact format, saving about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange or LB foot mounting. The S in the model code means the optional -S magnet is fitted, so CMSE or DMSE reed or solid-state switches can be mounted for end-of-stroke signalling. This model is discontinued; the ACED50X65 is the current drop-in, so verify ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X65SB replacement — usually within 7-8 hours.