This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X35SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X35SB 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 ACPD50X35SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 35mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X35SB (ISO 21287 ACE), in the same bore, stroke and force class.
This ACPD50X35SB is a double acting compact cylinder with a through rod that exits both covers, so the 50 mm bore delivers the same 881.2 N at 0.5 MPa (1233.7 N at 0.7 MPa) on every stroke because both sides work on the rod-side area. The male rod thread (B code) and the fitted -S magnet for CMSE / DMSE switches are built into this code. Its 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 jigs and gantries.
The through rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag while the front rod does the work. A fixed TPU bumper sits at each end, and travel runs 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi). Plan on roughly 529 N of usable push at 0.5 MPa, which lifts about 54 kg vertically - halve that for a 2:1 margin on a real part. Note this model is discontinued: the current-production drop-in is ACED50X35, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X35SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X35SB |
| Bore size | Ø50 mm |
| Stroke | 35 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 ACED50X35SB (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. |
| ×35 | 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 through rod clamps a machined aluminium housing from both sides of a milling jig, with the 881.2 N per side holding the part square without a separate backstop.
On a 35 mm shuttle stroke between two pick points, the rear rod carries a flag past CMSE / DMSE switches (enabled by the fitted -S magnet) to confirm each end position.
The equal push and pull of the double rod ejects a filled carton off a conveyor then retracts with the same 1233.7 N at 0.7 MPa, keeping cycle timing symmetric at 30-500 mm/s.
At 881.2 N per side at 0.5 MPa, the 50 mm bore suits clamping and press-fit work around 500 N of real load; step down to the 40 mm bore (571.8 N) for lighter fixtures or up to the 63 mm bore (1458.1 N) when the part fights back. The 35 mm stroke is well inside the 250 mm maximum standard stroke for this bore. Choose LB foot or FA/FB flange mounting to match the fixture, and remember a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must be held. Order ACED50X35 as the current replacement.
Replacement checklist
Because the rod exits both covers, force is equal both ways: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa on every stroke, with a maximum of 179.7 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, and a fixed TPU bumper at each end.
Order ACED50X35, the current-production ISO 21287 successor made by swapping the P for an E. It matches the same 50 mm bore, 35 mm stroke and force class, but confirm the ISO 21287 mounting dimensions against your fixture first, since the ACP was built to a DIN-standard footprint. The -S magnet option and CMSE / DMSE switch mounting carry over.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X35SB replacement — usually within 7-8 hours.