This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED80X55B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED80X55B 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 ACPD80X55B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø80mm bore and 55mm stroke, 1/4" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED80X55B (ISO 21287 ACE), in the same bore, stroke and force class.
This is a double acting, double-rod compact cylinder in the discontinued AirTAC ACPD range: an 80 mm bore with a 55 mm stroke and a male rod thread on both 20 mm rods. Because a rod exits each cover, both strokes develop the same force from the rod-side area - 2356.2 N at 0.5 MPa and 3298.7 N at 0.7 MPa, equal in push and pull. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight presses, clamping bridges and gantry fixtures where a full-length body will not fit.
The through-rod resists rotation and side load, gives a symmetric mount, and lets the rear rod carry a sensor flag or a second tooling plate. Fixed TPU bumpers decelerate the piston at both ends, and the hard-anodized aluminium body carries a S45C hard-chrome rod. As a sizing rule of thumb, plan on roughly 1414 N (about 144 kg of thrust) of real work at 0.5 MPa rather than the full rating - enough to lift about 120 kg vertically with a 2:1 margin. Note that this model is discontinued: the current-production drop-in is the ACED80X55, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD80X55B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED80X55B |
| Bore size | Ø80 mm |
| Stroke | 55 mm |
| Acting type | Double acting, double rod |
| Port size | 1/4" |
| Rod thread | M12×1.75 |
| 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 ACED80X55B (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 | 2356 N |
| 0.7 MPa | 3299 N |
| Max (@1.0 MPa) | 481 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). |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 bench-top marking press on an electronics line uses the 2356.2 N equal push and pull to stamp part numbers and retract the tooling at identical force, with the 55 mm stroke matching the die height.
A packaging line diverter pushes cartons one way, then the mirrored rear rod drives the return gate - one cylinder, two working ends, at 30-500 mm/s on a 0.5 MPa supply.
In an automotive leak-test rig, the rear 20 mm rod carries a flag past a switch position while the front rod clamps the part, keeping both motions synchronized on the same piston.
At 80 mm bore this is the second-strongest ACPD size, delivering 2356.2 N both ways at 0.5 MPa. If your load needs less than about 881 N at the same pressure, the 50 mm bore is the lighter choice; if you need more than 2356 N, step up to the 100 mm bore at 3681.6 N. Remember the piston drifts when air is lost - for a held vertical load, pair the cylinder with a rod lock or pilot check valve. This version has a male rod thread (B code) and no magnet, so CMSE or DMSE switches cannot be used unless you order the -S variant. The 55 mm stroke sits well inside the 300 mm maximum standard stroke for this bore. For new projects, specify the ACED80X55 instead - same bore, stroke and force class in current production.
Replacement checklist
Both directions are identical because a rod exits each cover and both strokes use the rod-side area: 2356.2 N at 0.5 MPa, 3298.7 N at 0.7 MPa, and up to 480.5 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, air filtered to 40 um, and -20 to +70 C.
The hard-anodized aluminium body is an ISO 21287-class short design, roughly 50% shorter in mounting length than an ISO 15552 profile cylinder, with FA/FB flange and LB foot options and fixed TPU bumpers at both ends. The ACPD80X55B is discontinued; the ACED80X55 is the current drop-in successor in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED80X55B replacement — usually within 7-8 hours.