This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED100X400SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED100X400SB 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 ACPD100X400SB 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 ACED100X400SB (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD100X400SB pushes with the same force in each direction because both strokes work on the rod-side area: 3681.6 N at 0.5 MPa and 5154.2 N at 0.7 MPa. The 100 mm bore drives a 25 mm hard-chrome S45C rod through a hard-anodized aluminium body, with a fixed TPU bumper at each cover and speeds of 30-500 mm/s. The 400 mm stroke is longer than the 300 mm standard limit for this bore, so it is a made-to-order build. This model is discontinued; the current-production successor is the ACED100X400 in the same bore, stroke and force class.
The through-rod is the practical advantage here: it resists rotation and side load, gives a symmetric mount, and the rear rod can carry a sensor flag. In round numbers, plan on roughly 2209 N of real work at 0.5 MPa (about 60% of rating), which is roughly 225 kg of vertical lift with a 2:1 margin. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so long-stroke gantries still fit shallow frames. The S code means the magnet is fitted, so CMSE or DMSE switches mount directly on the tube.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD100X400SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED100X400SB |
| 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 ACED100X400SB (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).
The 3681.6 N both-ways output seats cartons on a stacking table, and the rear rod carries a switch flag to confirm top-of-stroke on a 400 mm travel.
A rod on each end of the piston lets a conveyor pusher clamp on both faces and reject rotation on long 400 mm shuttle moves at up to 500 mm/s.
Equal force in extend and retract swings a heavy sand-line gate either way at 0.5 MPa, with the TPU bumpers absorbing the end-of-travel shock.
At 3681.6 N per side at 0.5 MPa, this bore sits at the top of the compact range; step down to the 80 mm bore (2356.2 N) for lighter presses or stay here for heavy clamping and lifting. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check valve for a held load. The 400 mm stroke exceeds the 300 mm standard maximum, so order it as a non-standard build and expect a lead time. FA/FB flange and LB foot mountings bolt to the ISO 21287 face, the B code gives a male rod thread, and the magnet is fitted for CMSE / DMSE switches. For new projects, specify the ACED100X400 instead and confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Replacement checklist
Yes. Because a rod exits both covers, both strokes use the rod-side area, so force is equal each way: 3681.6 N at 0.5 MPa and 5154.2 N at 0.7 MPa, with a maximum of 750.8 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 400 mm stroke is a made-to-order length above the 300 mm standard maximum for this bore.
The ACPD family is no longer in production. The current drop-in is the ACED100X400 (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 against your fixture before swapping, because the ACP was built to a DIN-standard footprint. This unit carries the optional -S magnet, so CMSE / DMSE switches work on it as fitted.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED100X400SB replacement — usually within 7-8 hours.