This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X25B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X25B 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 ACPD40X25B
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD40X25B 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 ACED40X25B (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 → ACED40X25B
- 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 ACPD40X25B
A double acting compact cylinder with a rod leaving both covers, the AirTAC ACPD40X25B delivers 571.8 N in each direction at 0.5 MPa because both strokes work on the rod-side area of the 40 mm bore. The 25 mm stroke and short ISO 21287-class body cut roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures where a full-length body cannot. The male rod thread (B code) on each end takes standard rod knuckles directly.
The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag on a moving table. A fixed TPU bumper sits at both ends, the hard-anodized aluminium body carries 1/8" ports, and the S45C hard-chrome rod runs at 30-500 mm/s across 0.15-1.0 MPa (22-145 psi). Note this model is discontinued: the current-production drop-in is ACED40X25, same bore, stroke and force class. As a sizing guide, plan on about 343 N (roughly 35 kg of push) for real work at 0.5 MPa, and expect about 29 kg of vertical lift with a 2:1 margin.
Airtac ACPD Double Rod Compact Cylinder ACPD40X25B Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X25B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X25B |
| 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 ACED40X25B (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 ACPD40X25B
| 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 ACPD40X25B Is Used
Reciprocating transfer table
The rear rod drives a return flag on a 25 mm shuttle table, so a CMSE switch (with the -S magnet) reads position from the back stroke while the front rod pushes the part - 571.8 N both ways keeps the cycle symmetric.
Press-fit of small bushings
With about 343 N of usable push at 0.5 MPa, the 40 mm bore seats light bushings in aluminium housings on an assembly bench, and the through-rod resists the side load of off-center parts.
Clamping in a compact jig
The short body saves about 50% of the length of an ISO 15552 profile cylinder, letting the 25 mm stroke clamp workpieces inside a crowded drilling fixture where a full-length body would not fit.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD40X25B with the ACED40X25B
At 571.8 N per side, the 40 mm bore sits between the 32 mm (345.6 N) and 50 mm (881.2 N) double-rod sizes, so step up to 50 mm if your jig needs more margin or down to 32 mm to save space. Remember a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must stay put. This unit has no magnet fitted; order the -S code if you want CMSE or DMSE switches, and pick FA/FB flange or LB foot mounting to match the ISO 21287 face. For new projects, specify ACED40X25 instead and confirm the ISO 21287 mounting dimensions before swapping from the DIN-standard ACP footprint.
Replacement checklist
- ✓ Current-production ACE → ACED40X25B
- ✓ 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 ACPD40X25B FAQ
Yes - because a rod exits both covers, both strokes use the rod-side area of the 40 mm bore. Output is 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, equal push and pull, with a maximum of 116.6 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the 12 mm rod ends in a male thread (B code) with a 1/8" port.
The ACPD family is no longer in production; the current drop-in is ACED40X25, which swaps the P for an E and matches the same bore, stroke and force class in the ISO 21287 short-body format. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was DIN-standard. On the ACPD itself, the magnet was the optional -S code only - this unit (no S) has no magnet, so no CMSE or DMSE switch can be mounted; order the -S version or the ACED equivalent if you need position sensing.
Related AirTAC ACE Cylinders
Request a Quote for the ACED40X25B
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X25B replacement — usually within 7-8 hours.