This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X75B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X75B 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 ACPD50X75B 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 ACED50X75B (ISO 21287 ACE), in the same bore, stroke and force class.
This discontinued ACPD50X75B is a double acting compact cylinder with a through rod: a 16 mm piston rod exits both hard-anodized aluminium covers, so the 50 mm bore delivers an identical 881.2 N at 0.5 MPa (1233.7 N at 0.7 MPa) whether it pushes or pulls. The male rod thread (B code) on each end bolts straight to tooling, and a fixed TPU bumper pads both stroke ends. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi) of clean, 40 um filtered air.
Because the rod runs through the whole body, the rear shaft can carry a sensor flag or a second tool plate while the front one does the work, and the symmetric mount resists rotation and side load. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight welding fixtures and packaging gantries. Note this model is no longer produced: the current drop-in is the ACED50X75, and you should confirm the ISO 21287 mounting dimensions before swapping. As a sizing rule of thumb, plan on roughly 529 N (about 54 kgf) of real work at 0.5 MPa, or about 44 kg of vertical lift with a 2:1 margin.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X75B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X75B |
| 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 ACED50X75B (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).
A rod on each face lets one cylinder push pallets forward on the front stroke and pull the empty carrier back on the rear rod, with equal 881.2 N force in both directions at 0.5 MPa.
The 75 mm stroke and short ISO 21287-class body reach under weld gantry framing, while the male-threaded rear rod carries a second clamp arm or a flag for a switch bracket.
Symmetric through-rod mounting resists the side load of squaring cartons at up to 500 mm/s, and the fixed TPU bumpers soften the ends of each 75 mm push.
At 881.2 N per direction, the 50 mm bore sits between the 40 mm (571.8 N) and the 63 mm (1458.1 N) double-rod frames, so step down when the load is under 550 N and up when you need over 900 N at 0.5 MPa. The 75 mm stroke is well inside the 250 mm maximum standard stroke for this bore, so it is a catalog item, not a made-to-order build. Remember that a plain through-rod cylinder drifts when air is lost - specify a rod lock or pilot check if the load must stay put. This unit has no magnet (the -S code adds one for CMSE / DMSE switches), uses a male rod thread and PT ports, and is replaced by the ACED50X75.
Replacement checklist
It is a double-rod cylinder, so output is equal both ways: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa on the push and the pull, since both strokes use the rod-side area of the 50 mm bore. At the full 1.0 MPa rating the frame reaches a maximum of 179.7 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure.
The ACPD family is discontinued; the current-production drop-in is the ACED50X75 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard. On this exact model no magnet is fitted, so no switch can be mounted; if you need position sensing, order the -S version or the ACED equivalent to enable CMSE / DMSE reed or solid-state switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X75B replacement — usually within 7-8 hours.