This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X90S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X90S 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 ACPD50X90S
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X90S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 90mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X90S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke90 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.5
- StatusDiscontinued → ACED50X90S
- 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 ACPD50X90S
A double acting compact cylinder with a through piston rod, the ACPD50X90S pushes and pulls with identical output because both strokes work on the rod-side area: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction. The 16 mm rod exits both covers, so the rear rod can carry a sensor flag or a second tool while the through-rod resists rotation and side load. The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signalling.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs, guarding and gantries. A hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). In practice the 881.2 N rating translates to about 89 kgf, so plan on lifting roughly 44 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production drop-in is the ACED50X90, and ISO 21287 mounting dimensions should be confirmed before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD50X90S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X90S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X90S |
| Bore size | Ø50 mm |
| Stroke | 90 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 ACED50X90S (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 ACPD50X90S
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×90 | 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 ACPD50X90S Is Used
Symmetric CNC fixture clamping
The equal 881.2 N output both ways lets one cylinder clamp a machined aluminium housing from either side with identical force, keeping fixture reaction loads balanced.
Reciprocating transfer slide
A 90 mm through-rod stroke shuttles small electronics sub-assemblies between two pick points at 30-500 mm/s, with the rear rod driving a flag past CMSE switches for position feedback.
Push-pull carton gate
On a packaging line the through-rod pushes a carton into a lane and retracts with the same 1233.7 N at 0.7 MPa, so no separate return cylinder is needed in the tight frame.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X90S with the ACED50X90S
At 881.2 N per side at 0.5 MPa, the 50 mm bore suits clamping and press-fit work in the 500 N range once a margin is applied; step down to the 40 mm bore (571.8 N) for lighter tooling or up to the 63 mm bore (1458.1 N) when the job needs more force without changing the short-body footprint. The 90 mm stroke sits well inside the 250 mm standard limit for this bore. Because a plain double-rod cylinder drifts when air is lost, add a rod lock or pilot check valve for any held load. Mount via FA/FB flange or LB foot, and remember the -S magnet on this unit is what enables CMSE / DMSE switch mounting. For new projects, order the ACED50X90 instead.
Replacement checklist
- ✓ Current-production ACE → ACED50X90S
- ✓ 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 ACPD50X90S FAQ
Because this is a double-rod cylinder, force is identical in both directions: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, equal on extend and retract since both strokes use the rod-side area. At 1.0 MPa the theoretical maximum is 179.7 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof limit, and speed runs 30-500 mm/s.
The ISO 21287-class short body cuts roughly 50% of the mounting length compared with an ISO 15552 profile cylinder, so it fits where a full-length cylinder will not. The ACPD family is discontinued; the current-production successor is the ACED50X90 (swap the P for an E), which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to the DIN standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACED50X90S
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X90S replacement — usually within 7-8 hours.