This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X125 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X125 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 ACPD50X125
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X125 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 125mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X125 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.5
- StatusDiscontinued → ACED50X125
- 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 ACPD50X125
Double acting with a rod leaving both covers, the ACPD50X125 is a discontinued DIN-standard compact cylinder in the 50 mm bore class. Because each side of the piston sees the rod-side area, it delivers an identical 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction - useful for symmetric clamping or push-pull tooling. Its short ISO 21287-style body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, and the through-rod resists rotation and side load while giving you a rear rod for a sensor flag.
In practice, plan on about 529 N of usable work at 0.5 MPa (roughly 60% of the rating), which corresponds to lifting about 45 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries a fixed TPU bumper at each end, and the 16 mm S45C hard-chrome rod is threaded M10x1.5 female. This model is no longer produced: the current drop-in is the ACED50X125, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD50X125 Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X125 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X125 |
| Bore size | Ø50 mm |
| Stroke | 125 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 ACED50X125 (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 ACPD50X125
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 ACPD50X125 Is Used
Symmetric press fixture
The equal 881.2 N output in both directions lets one 50 mm bore press a bushing home on the forward stroke and eject the finished part on the return, with no re-gapping of the fixture.
Reciprocating conveyor diverter
A through-rod on both covers keeps the pusher bar guided and rotation-free as it swings cartons off a packaging line at speeds up to 500 mm/s.
Lift-assist gantry station
With about 45 kg of vertical lift capacity at a 2:1 margin, the 125 mm stroke raises and lowers small weldment fixtures inside a tight machine envelope.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X125 with the ACED50X125
At 881.2 N per direction, the 50 mm bore sits between the 40 mm (571.8 N) and 63 mm (1458.1 N) double-rod units at 0.5 MPa - step down for lighter pick-and-place, up for heavier presses. The 125 mm stroke is within the 250 mm standard limit for this bore, so no made-to-order build is needed. Note that a plain double-rod cylinder drifts when air is lost; add a rod lock or pilot check if the load must stay put. FA/FB flange, LB foot and clevis brackets bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches - this code has no magnet fitted. For new projects, order the ACED50X125.
Replacement checklist
- ✓ Current-production ACE → ACED50X125
- ✓ 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 ACPD50X125 FAQ
Yes - the double-rod design means both strokes use the rod-side area, so force is equal either 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. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed range 30-500 mm/s, and the port is 1/8" (PT thread).
AirTAC replaced the ACPD family with the ISO 21287 ACED series, so the direct successor is the ACED50X125 - same 50 mm bore, 125 mm stroke and force class. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions and port positions against your fixture before swapping. If you need position sensing, order the -S magnet code so CMSE / DMSE switches can be mounted.
Related AirTAC ACE Cylinders
Request a Quote for the ACED50X125
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X125 replacement — usually within 7-8 hours.