This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X275S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X275S 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.
Airtac ACPD Double Rod Compact Cylinder ACPD50X275S
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X275S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 275mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X275S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke275 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.5
- StatusDiscontinued → ACED50X275S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPD Double Rod Compact Cylinder ACPD50X275S
A double acting compact cylinder with a rod leaving both covers, the ACPD50X275S pushes and pulls with identical output because each stroke works on the rod-side area: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa in either direction. The 275 mm travel is beyond the 250 mm standard limit for a 50 mm bore, so this unit is made to order. The through-rod resists rotation and side load, gives a symmetric mounting face, and the rear rod can carry a sensor flag, while fixed TPU bumpers pad both ends of travel.
The hard-anodized aluminium body follows the ISO 21287 short format, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and gantries. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it covers 30-500 mm/s between -20 and +70 C. In practice, plan on about 529 N of usable work at 0.5 MPa, enough to lift roughly 45 kg vertically with a 2:1 margin. This model carries the optional -S magnet, so CMSE or DMSE switches mount directly on the tube. Note the ACPD line is discontinued; the current drop-in is ACED50X275, and you should confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD50X275S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X275S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X275S |
| Bore size | Ø50 mm |
| Stroke | 275 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED50X275S (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.
Theoretical Output Force (Ø50mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac ACPD Double Rod Compact Cylinder ACPD50X275S
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×275 | 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).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD50X275S Is Used
Reciprocating transfer gantry
The through-rod drives a carriage from either cover on a packaging line shuttle, giving 881.2 N of push and pull at 0.5 MPa so the return stroke carries the same payload as the forward stroke.
Twin-sided press fixture
On an electronics assembly bench, rods on both ends let one cylinder clamp or eject from either side of a jig, with the 275 mm made-to-order stroke reaching deep into the fixture.
Position-flagged conveyor stop
The rear rod carries a switch flag while the front rod extends a stopper on a bottling conveyor; the fitted -S magnet works with CMSE / DMSE switches to confirm each stroke end.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X275S with the ACED50X275S
At 50 mm bore the through-rod delivers 881.2 N both ways at 0.5 MPa, so size the load under about 529 N for a sensible margin; if your part weighs more than roughly 45 kg for vertical lifting, step up to the 63 mm bore with 1458.1 N at 0.5 MPa, or drop to 40 mm at 571.8 N for lighter duty. The 275 mm stroke is non-standard for this bore and is built to order. FA/FB flange or LB foot mounts suit fixed fixtures, and the fitted -S magnet accepts CMSE / DMSE switches for end-of-stroke sensing. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for a held load. For new designs, order the ACED50X275 instead and verify the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACED50X275S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPD Double Rod Compact Cylinder ACPD50X275S FAQ
Yes. Because a rod exits both covers, every stroke uses the rod-side area, so force is equal both ways: 881.2 N at 0.5 MPa, 1233.7 N at 0.7 MPa, and up to 179.7 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, and the 275 mm stroke is a made-to-order length above the 250 mm standard for this bore.
The hard-anodized aluminium body follows the ISO 21287 compact format, saving about 50% of the mounting length of an ISO 15552 profile cylinder, and a fixed TPU bumper at each cover simply pads the end of travel without any adjustment. The ACPD is discontinued; the current-production drop-in is ACED50X275 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before you swap.
Related AirTAC ACE Cylinders
Request a Quote for the ACED50X275S
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X275S replacement — usually within 7-8 hours.