This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X125S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X125S 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 ACPD50X125S
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X125S 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 ACED50X125S (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 → ACED50X125S
- 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 ACPD50X125S
A double acting compact cylinder with a rod through both covers, the ACPD50X125S pushes and pulls with identical output: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction, because both strokes work on the rod-side area of the 50 mm bore. The 16 mm through-rod resists rotation and side load, gives a symmetric mounting point at each end, and the rear rod can carry a sensor flag. Speed range is 30-500 mm/s over an operating pressure of 0.15-1.0 MPa (22-145 psi).
The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight machine frames and fixture plates. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and this -S version carries the optional magnet so CMSE / DMSE switches can be fitted for end-of-stroke detection. Note: the ACPD family is discontinued; the current-production drop-in is the ACED50X125, so confirm ISO 21287 mounting dimensions before swapping. For planning, expect about 528 N (roughly 54 kg of thrust) of real work at 0.5 MPa rather than the full rating.
Airtac ACPD Double Rod Compact Cylinder ACPD50X125S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X125S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X125S |
| 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 ACED50X125S (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 ACPD50X125S
| 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 ACPD50X125S Is Used
Balanced fixture clamping
The equal 881.2 N push and pull at 0.5 MPa lets one cylinder both clamp a machined housing and retract it against a positive stop on a CNC jig, with the 125 mm stroke clearing the part for loading.
Reciprocating transfer carriage
A rod at each end drives a small conveyor-mounted shuttle back and forth between two hard stops; the through-rod resists side load and the TPU bumpers take the end impacts at up to 500 mm/s.
Position-flagged gate actuator
On a packaging line gate, the rear rod carries a flag past CMSE or DMSE switches (enabled by the -S magnet fitted here) so the PLC confirms both stroke ends without external limit switches.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X125S with the ACED50X125S
At 881.2 N per direction at 0.5 MPa, this 50 mm double-rod unit suits balanced push-pull tasks around 50 kg of working thrust; vertically it lifts about 45 kg with a 2:1 margin. Step down to the ACPD40 (571.8 N at 0.5 MPa) for lighter clamping, or up to the ACPD63 (1458.1 N) when the load grows. Stroke 125 mm sits inside the 250 mm maximum standard stroke for bore 50, so no made-to-order build is needed. 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 and LB foot mountings bolt to the ISO 21287 face. This model is discontinued; order the ACED50X125 as the current replacement and verify mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACED50X125S
- ✓ 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 ACPD50X125S 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. Ports are 1/8" (PT thread on this code), the rod is 16 mm with an M10x1.5 female thread, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
The ACPD family is no longer in production. The current-production drop-in is the ACED50X125 (swap the P for an E) in the same 50 mm bore, 125 mm stroke and force class; confirm the ISO 21287 mounting dimensions before swapping since the ACP is DIN-standard. This -S version carries the optional magnet, so CMSE / DMSE reed or solid-state switches can be mounted for end-of-stroke detection.
Related AirTAC ACE Cylinders
Request a Quote for the ACED50X125S
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X125S replacement — usually within 7-8 hours.