This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X45SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X45SB 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 ACPD40X45SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 45mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X45SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting, double-rod compact cylinder built to the DIN-standard ACP pattern, the ACPD40X45SB pushes a 40 mm piston through a 45 mm stroke with a rod leaving both covers. Because each side works on the rod-side area, output is a symmetric 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa in either direction - no push-pull imbalance to design around. The male-threaded rod end (B code) bolts straight to I/Y knuckles, and the through-rod resists rotation and side load while the rear rod can carry a sensor flag.
The hard-anodized aluminium body with S45C hard-chrome rod saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. Run it on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, from -20 to +70 C, with a fixed TPU bumper at each end. Plan on about 343 N of real work at 0.5 MPa (roughly 17 kg of vertical lift with a 2:1 margin). Note this model is discontinued - the current-production drop-in is the ISO 21287 ACED40X45.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X45SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X45SB |
| Bore size | Ø40 mm |
| Stroke | 45 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 ACED40X45SB (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. |
| ×45 | 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 equal 571.8 N thrust in both directions advances and retracts a small drilling spindle on a transfer machine at a steady 30-500 mm/s, with the rear rod carrying a DMSE switch for end-of-stroke confirmation.
A through-rod on a carton indexing slide sees identical force pushing and pulling, so the 45 mm stroke cycles a 30 kg tray carrier without recalibrating pressure between directions.
Mounted via an SDB pivot bracket, the double rod resists the side load of an oscillating lever on an automotive leak-test station, with the fixed TPU bumpers absorbing the 45 mm travel ends.
At 45 mm stroke and 571.8 N both ways, this 40 mm bore suits symmetric clamping and reciprocating tooling where equal force matters. If your load needs under 345.6 N at 0.5 MPa, the 32 mm bore saves space; if you need up to 881.2 N, step up to the 50 mm bore. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for held loads. The S code on this unit carries the optional -S magnet, so CMSE / DMSE switches mount directly; FA/FB flange and LB foot brackets fit the ISO 21287 face. Since ACPD is discontinued, order the ACED40X45 and confirm ISO 21287 mounting dimensions before swapping.
Replacement checklist
As a double-rod cylinder, force is equal in both directions: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, peaking at 116.6 kgf at 1.0 MPa. That is about 343 N of practical work at 0.5 MPa, or roughly 17 kg of vertical lift with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
Order the ACED40X45, the ISO 21287 successor made by swapping the P for an E. It matches the same 40 mm bore, 45 mm stroke and force class with a short compact body, FA/FB flange and LB foot mounting, and the optional -S magnet for CMSE / DMSE switches. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP is DIN-standard.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X45SB replacement — usually within 7-8 hours.