This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X25 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X25 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 ACPD40X25
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD40X25 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 25mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X25 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- StatusDiscontinued → ACED40X25
- 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 ACPD40X25
A double acting, double-rod compact cylinder with a 40 mm bore and a short 25 mm stroke, the ACPD40X25 pushes a piston rod out of BOTH covers, so the through-rod delivers an identical 571.8 N in each direction at 0.5 MPa (800.5 N at 0.7 MPa). Because both strokes use the rod-side area, there is no push-versus-pull difference to design around. The hard-anodized aluminium body is an ISO 21287 short build that saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixture plates, guarding and gantry frames. This model is discontinued; the current-production drop-in is the ACED40X25.
Practical sizing: treat about 343 N (roughly 35 kg of thrust) as the realistic working force at 0.5 MPa, which vertically lifts about 29 kg with a 2:1 margin. The 12 mm S45C hard-chrome rod resists rotation and side load, and the rear rod can carry a sensor flag. A fixed TPU bumper sits at both ends, speed runs 30-500 mm/s, and the rod end is female M8x1.25 with a 1/8" PT port. The magnet is optional: order the -S code to enable CMSE / DMSE switches; without -S there is no magnet.
Airtac ACPD Double Rod Compact Cylinder ACPD40X25 Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X25 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X25 |
| Bore size | Ø40 mm |
| Stroke | 25 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 ACED40X25 (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 ACPD40X25
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 ACPD40X25 Is Used
Bench-top press fixture
The 571.8 N through-rod presses bushings into aluminium housings on a small assembly bench, with the 25 mm stroke matching shallow press depth and the rear rod carrying a top-of-stroke sensor flag.
Symmetric part ejector
On a plastic molding trim station, the double rod ejects finished clips from both sides of a nest with equal 571.8 N force, keeping the fixture layout symmetric in a tight envelope.
Bi-directional conveyor stop
A packaging line uses the through-rod to push cartons off a conveyor from either face at 30-500 mm/s, the short ISO 21287 body fitting under the side guard where a full-length cylinder will not.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD40X25 with the ACED40X25
At 571.8 N per direction at 0.5 MPa, the 40 mm bore sits between the 32 mm (345.6 N) and 50 mm (881.2 N) double-rod classes - step down for lighter clamping, step up when the load needs nearly double the thrust. The 25 mm stroke is well inside the 200 mm maximum standard stroke for this bore. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check if the load must stay put. FA/FB flange and LB foot mounts bolt to the ISO 21287 face, and the optional -S magnet pairs with CMSE / DMSE switches. For new builds, specify the ACED40X25, the current replacement, and confirm the ISO 21287 mounting dimensions before swapping.
Replacement checklist
- ✓ Current-production ACE → ACED40X25
- ✓ 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 ACPD40X25 FAQ
Yes - the double-rod design means both strokes use the rod-side area, so force is equal both ways: 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. 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 25 mm stroke is well under the 200 mm maximum standard stroke for the 40 mm bore.
Order the ACED40X25, the current-production ISO 21287 replacement (swap the P for an E). It matches the same 40 mm bore, 25 mm stroke and force class with a matching short body and mounting family. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. Also note the magnet is the optional -S code, not a fitted feature, and the fixed TPU bumper only decelerates at the ends - it never holds a load.
Request a Quote for the ACED40X25
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X25 replacement — usually within 7-8 hours.