This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X50B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X50B 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 ACPD40X50B
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD40X50B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 50mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X50B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- StatusDiscontinued → ACED40X50B
- 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 ACPD40X50B
A double acting compact cylinder with a rod leaving both covers, the ACPD40X50B delivers 571.8 N in each direction at 0.5 MPa because both strokes work on the rod-side area. The 40 mm bore and 50 mm stroke suit short-stroke clamping and press-fit stations, and the male rod thread (B code) bolts straight to standard rod knuckles. Its hard-anodized aluminium body is an ISO 21287 short build, saving roughly 50% of the mounting length of an ISO 15552 profile cylinder.
The through-rod resists rotation and side load and gives a symmetric mount, so the rear rod can carry a tooling plate or a sensor flag. Fixed TPU bumpers sit at both ends, speed runs 30-500 mm/s, and pressure spans 0.15-1.0 MPa (22-145 psi). Plan on about 343 N of real work at 0.5 MPa (roughly 60% of the rating), which is about 29 kg of vertical lift with a 2:1 margin. Note: this model is discontinued; the current-production drop-in is the ACED40X50, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD40X50B Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X50B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X50B |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED40X50B (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 (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 572 N |
| 0.7 MPa | 800 N |
| Max (@1.0 MPa) | 117 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 ACPD40X50B
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 ACPD40X50B Is Used
Press-fit station for bearing bushings
The 571.8 N symmetric force presses bushings into aluminium housings on an assembly line, with the 50 mm stroke matching typical insert depth.
Reciprocating conveyor diverter
A rod on each cover lets the through-rod push a diverter blade forward and pull it back with equal 571.8 N force, keeping cycle timing identical both ways at 30-500 mm/s.
Dual-end sensor flag on a packaging gantry
The rear rod carries a position flag between CMSE / DMSE switches (with the optional -S magnet), while the front rod actuates a reject arm on a carton line.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD40X50B with the ACED40X50B
At 571.8 N per side (800.5 N at 0.7 MPa), the 40 mm bore sits mid-range: step down to the 32 mm bore (345.6 N at 0.5 MPa) for lighter clamps, or up to the 50 mm bore (881.2 N) when the part weight demands more. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for a held load. This unit has no magnet; order the -S code if you need CMSE / DMSE switch positions. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. Replacement: ACED40X50.
Replacement checklist
- ✓ Current-production ACE → ACED40X50B
- ✓ 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 ACPD40X50B FAQ
Because it is a double-rod cylinder, force is equal in both directions: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, with a maximum of 116.6 kgf at 1.0 MPa. Both strokes use the rod-side area, so push and pull are identical. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating.
No - the ACPD40X50B is discontinued. The current-production drop-in is the ACED40X50 (swap the P for an E), an ISO 21287 compact cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows the older DIN-standard footprint. FA/FB flange and LB foot options carry over.
Related AirTAC ACE Cylinders
Request a Quote for the ACED40X50B
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X50B replacement — usually within 7-8 hours.