This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X70SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X70SB 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 ACPD40X70SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 70mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X70SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPD40X70SB is a double acting, double-rod compact cylinder: a piston rod exits both covers, so the 70 mm stroke delivers 571.8 N in either direction at 0.5 MPa (800.5 N at 0.7 MPa) because both strokes work on the rod-side area. The male-threaded 12 mm rod (B code) carries no rotation tendency thanks to the symmetric through-rod, and the back-end rod can drive a sensor flag or a second tool. The optional -S magnet is fitted on this model, so CMSE or DMSE reed and solid-state switches mount directly on the hard-anodized aluminium body.
Its ISO 21287-class short body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight pick-and-place gantries and fixture plates. At 0.5 MPa plan on about 343 N of usable work force, which corresponds to lifting roughly 29 kg vertically with a 2:1 margin. A fixed TPU bumper sits at both ends, speed runs 30-500 mm/s, and pressure spans 0.15-1.0 MPa (22-145 psi). Note: this model is discontinued - the current-production replacement is the ACED40X70, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X70SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X70SB |
| Bore size | Ø40 mm |
| Stroke | 70 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 ACED40X70SB (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 | 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).
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 through-rod clamps a machined aluminium housing from both sides of a CNC jig with 571.8 N per direction, so one valve circuit handles both ends.
A packaging line shuttle rides between two stops at 30-500 mm/s, with the back-end rod carrying a flag for CMSE position switches.
Ejecting bushings from a press die needs about 343 N of real work force, well inside this bore's rating at 0.5 MPa.
For a 70 mm stroke needing equal force both ways, this 40 mm bore gives 571.8 N at 0.5 MPa; step down to a 32 mm bore (345.6 N) for lighter clamping or up to a 50 mm bore (881.2 N) for heavier presses. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check valve for a held load. FA/FB flange and LB foot mounts bolt to the ISO 21287 face, and the fitted -S magnet accepts CMSE/DMSE switches. Since ACPD is discontinued, order the ACED40X70 as the drop-in successor after checking mounting dimensions.
Replacement checklist
Because it is a double-rod cylinder, output 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) and speed is 30-500 mm/s.
This model is discontinued; the current drop-in is the ACED40X70 (P swapped for E), matching the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping. This unit carries the optional -S magnet, so CMSE and DMSE reed or solid-state switches mount on the body for end-of-stroke detection.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X70SB replacement — usually within 7-8 hours.