This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X75SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X75SB 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 ACPD50X75SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 75mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X75SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD50X75SB pushes and pulls with identical output: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in each direction, since both strokes work on the rod-side area of the 50 mm bore. The through-rod resists rotation and side load, gives a symmetric mounting face, and the rear rod can carry a sensor flag, while fixed TPU bumpers pad both ends of the 75 mm stroke.
The hard-anodized aluminium body follows the ISO 21287 short format, cutting roughly 50% of the mounting length compared with an ISO 15552 profile cylinder, so it slots into tight jigs and gantries. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signals, and the B code gives a male rod thread on a 16 mm rod with 1/8" PT ports. Note that ACPD is discontinued: the current-production drop-in is ACED50X75, so confirm ISO 21287 mounting dimensions before swapping. As a sizing rule, plan on about 529 N of usable work at 0.5 MPa, which lifts roughly 45 kg vertically with a 2:1 margin.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X75SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X75SB |
| Bore size | Ø50 mm |
| Stroke | 75 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 ACED50X75SB (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. |
| ×75 | 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 equal push and pull at 0.5 MPa lets one cylinder both clamp a steel workpiece and retract the nest on a CNC milling jig, with the male rod thread taking an I-type knuckle.
A rod at each cover means the same 1233.7 N at 0.7 MPa is available to kick cartons off a conveyor in either travel direction, and the rear rod carries a flag for DMSE switch feedback.
The short ISO 21287 body fits the narrow gantry frame, and the through-rod guides a 45 kg-class carrier back and forth at speeds from 30 to 500 mm/s without rotating.
At 881.2 N per side at 0.5 MPa, this 50 mm bore sits between the 40 mm size (571.8 N) and the 63 mm size (1458.1 N) in the same compact family; step up to 63 mm if your fixture needs the extra margin. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check if the load must stay put. Mounting brackets FA/FB flange and LB foot bolt to the ISO 21287 face, and the -S magnet on this unit works with CMSE / DMSE switches. Since ACPD is out of production, order ACED50X75 as the current replacement and verify the mounting dimensions against your fixture.
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 per stroke, both on the rod-side area of the 50 mm bore. At a full 1.0 MPa the cylinder reaches a maximum of 179.7 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi), running on air filtered to 40 um at 30-500 mm/s.
Yes, the ACPD family is no longer produced. The current-production drop-in is ACED50X75, the ISO 21287 successor in the same bore, stroke and force class; confirm the mounting dimensions against your fixture before swapping, since the ACP follows the older DIN-standard format. On this model the -S magnet is already in the ordering code, so CMSE and DMSE reed or solid-state switches can be mounted directly for end-of-stroke detection.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X75SB replacement — usually within 7-8 hours.