This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X20 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 ACPD50X20
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X20 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X20 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.5
- StatusDiscontinued → ACED50X20
- 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 ACPD50X20
A double acting compact cylinder with a rod leaving both covers, the ACPD50X20 pushes and pulls with identical output because each stroke works on the rod-side area: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction. The 50 mm bore and short 20 mm stroke suit tight fixtures where a full-length ISO 15552 profile cylinder would waste roughly half its mounting length. A fixed TPU bumper sits at each end, and the through-rod resists rotation and side load while giving a symmetric mount.
In practice, plan on about 529 N of usable work at 0.5 MPa (roughly 60% of the rating), which is a vertical lift of about 45 kg with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, and the female M10x1.5 rod thread on both ends accepts standard I/Y knuckles. Note that this model is discontinued: the current-production drop-in is the ISO 21287 ACED50X20, so confirm mounting dimensions before swapping. Without the optional -S code there is no magnet, so CMSE or DMSE switches cannot be fitted.
Airtac ACPD Double Rod Compact Cylinder ACPD50X20 Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X20 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X20 |
| Bore size | Ø50 mm |
| Stroke | 20 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 ACED50X20 (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 ACPD50X20
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 ACPD50X20 Is Used
Reciprocating transfer slide
The through-rod drives a workpiece carrier from both ends on a packaging machine indexing table, with equal 881.2 N thrust and return at 0.5 MPa over the 20 mm stroke.
Dual-side press fixture
A small electronics assembly press uses the front rod to clamp while the rear rod carries a sensor flag, both sides seeing the same rod-side force at 0.7 MPa.
Short-stamp marking head
A dot-peen marking station in a job shop mounts the cylinder on an LB foot inside a tight guard, where the short body saves about 50% of the length of an ISO 15552 profile cylinder.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X20 with the ACED50X20
If 881.2 N per side at 0.5 MPa is more than the job needs, the ACPD32X20 delivers 345.6 N in the same compact format; if the load is heavier, step up to the ACPD63X20 for 1458.1 N both ways. Remember the piston drifts when air is lost, so a held load calls for a rod lock or pilot check valve. FA/FB flange and LB foot mountings bolt to the ISO 21287 face, and the -S code adds the magnet for CMSE / DMSE switches. For new projects, order the ACED50X20 instead, since this ACPD version is out of production.
Replacement checklist
- ✓ Current-production ACE → ACED50X20
- ✓ 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 ACPD50X20 FAQ
Because a rod exits both covers, output is equal both ways: 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 1/8" port depends only on the 50 mm bore.
This model is no longer in production; the current drop-in is the ISO 21287 ACED50X20 in the same bore, stroke and force class, so confirm the mounting dimensions before swapping. For sensing, the optional -S code adds the magnet that lets CMSE or DMSE switches detect position; without -S there is no magnet and no switch can be mounted.
Request a Quote for the ACED50X20
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X20 replacement — usually within 7-8 hours.