This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X40 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.
Airtac ACPD Double Rod Compact Cylinder ACPD50X40
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X40 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 40mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X40 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.5
- StatusDiscontinued → ACED50X40
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPD Double Rod Compact Cylinder ACPD50X40
A double acting compact cylinder with a rod leaving both covers, the ACPD50X40 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, both directions. The 16 mm through-rod resists rotation and side load, and the rear rod can carry a sensor flag, while fixed TPU bumpers sit at each end. Its hard-anodized aluminium body follows the ISO 21287 short format, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. Note this model is discontinued; the current-production successor is the ACED50X40.
For real-world sizing, plan on about 529 N (roughly 54 kg of push) as the usable force at 0.5 MPa, and expect the through-rod to lift about 45 kg vertically once a 2:1 margin is applied. Air supply runs 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed spans 30-500 mm/s, and the 1/8" ports take PT thread. The magnet is not fitted on this code; order the optional -S version if CMSE or DMSE switches are needed. Confirm ISO 21287 mounting dimensions before swapping to the ACED50X40.
Airtac ACPD Double Rod Compact Cylinder ACPD50X40 Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X40 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X40 |
| Bore size | Ø50 mm |
| Stroke | 40 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 ACED50X40 (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.
Theoretical Output Force (Ø50mm)
| 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).
Model Code: Airtac ACPD Double Rod Compact Cylinder ACPD50X40
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD50X40 Is Used
Bench-top press fixture
The 881.2 N rod-side force at 0.5 MPa is enough for staking and light pressing of aluminium bushings in a 40 mm-stroke assembly press.
Reciprocating slide drive
Equal push and pull from the double rod drives a small conveyor gate or indexing slide back and forth at up to 500 mm/s without a return spring.
Dual-end part ejector
The rear rod ejects scrap or trips a flag switch while the front rod pushes the finished PCB pallet off the nest in one stroke.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X40 with the ACED50X40
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 ACPD40X series (571.8 N) for lighter fixtures or up to the ACPD63X (1458.1 N) when force headroom matters. The through-rod gives a symmetric mount and the fixed TPU bumpers only decelerate at the ends - the piston will drift if air is lost, so add a rod lock or pilot check for a held load. FA/FB flange and LB foot brackets bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches. Since ACPD is discontinued, order the ACED50X40 as the drop-in replacement.
Replacement checklist
- ✓ Current-production ACE → ACED50X40
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPD Double Rod Compact Cylinder ACPD50X40 FAQ
Yes - the double-rod design means both strokes use the rod-side area, so output is identical each way: 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. The rod is 16 mm, ports are 1/8" PT, and the 40 mm stroke sits well inside the 250 mm maximum standard stroke for this bore.
Order the ACED50X40, the ISO 21287 successor made by swapping the P for an E. It matches the same bore, stroke and force class and keeps the short-body format, but confirm the ISO 21287 mounting dimensions against your fixture first since the ACP was built to the older DIN standard.
Request a Quote for the ACED50X40
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X40 replacement — usually within 7-8 hours.