This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED100X400S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED100X400S 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.

The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD100X400S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø100mm bore and 400mm stroke, 1/4" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED100X400S (ISO 21287 ACE), in the same bore, stroke and force class.
This is a double acting, double-rod compact cylinder: a piston rod exits both covers of the hard-anodized aluminium body, so the 100 mm bore delivers 3681.6 N at 0.5 MPa (5154.2 N at 0.7 MPa) in BOTH directions, since each stroke works on the rod-side area. The 25 mm through-rod resists rotation and side load, gives a symmetric mount, and leaves the back-end rod free to carry a sensor flag. This specific model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clipped on for end-of-stroke detection. The 400 mm stroke is beyond the 300 mm maximum standard stroke for a 100 mm bore, so it is a made-to-order build. Note: the ACPD family is discontinued; the current-production drop-in is the ACED100X400.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why a long-stroke compact like this fits deep slides and long gantry axes where a full-length body will not. Fixed TPU bumpers at both ends decelerate the piston at each end of travel, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi) with air filtered to 40 um. For sizing: treat roughly 2209 N (about 0.6 of the 0.5 MPa rating) as usable work force, which corresponds to lifting around 187 kg vertically with a 2:1 margin. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for a held load.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD100X400S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED100X400S |
| Bore size | Ø100 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 300 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED100X400S (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.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 3682 N |
| 0.7 MPa | 5154 N |
| Max (@1.0 MPa) | 751 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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).
A rod on each face lets the arm push a formed aluminium panel off the die on the forward stroke and pull the empty pallet back on the return, with 3681.6 N available in each direction at 0.5 MPa.
The symmetric through-rod guides a steel fixture plate down onto a stamping die and lifts it clear again; plan on about 187 kg of vertical lift with a 2:1 margin at 0.5 MPa.
The 400 mm made-to-order stroke indexes carriages along a conveyor gantry, and with the -S magnet fitted, CMSE switches report both end positions without external limit switches.
At 100 mm bore this is the top of the ACPD range: 3681.6 N both ways at 0.5 MPa. If your load needs under 1458.1 N, the 63 mm bore does the same job with a smaller envelope; if you need more than 3681.6 N, no larger ACPD bore exists, so step up to a different series. The 400 mm stroke exceeds the 300 mm standard maximum for bore 100, so it is built to order - confirm the lead time. Mount with FA/FB flange or LB foot on the ISO 21287 face; the female M16x1.5 rod thread takes standard I/Y knuckles. The -S magnet is already on this model, so order CMSE or DMSE switches separately. Replacement: ACED100X400 - confirm ISO 21287 mounting dimensions before swapping.
Replacement checklist
Yes - because a rod exits both covers, both strokes use the rod-side area. At 0.5 MPa you get 3681.6 N in each direction; at 0.7 MPa, 5154.2 N both ways; the maximum at 1.0 MPa is 750.8 kgf. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um.
Bore 100 tops out at 300 mm of standard stroke, so 400 mm is a non-standard, made-to-order build - confirm lead time and outline dimensions from the datasheet. Also note this ACPD model is discontinued: the current-production replacement is the ACED100X400, a drop-in in the same bore, stroke and force class. Verify the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED100X400S replacement — usually within 7-8 hours.