This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X120S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X120S 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 ACPD50X120S
The AirTAC Airtac ACPD Double Rod Compact Cylinder ACPD50X120S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 120mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X120S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke120 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.5
- StatusDiscontinued → ACED50X120S
- 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 ACPD50X120S
A double acting through-rod cylinder with a rod leaving both covers, the ACPD50X120S delivers 881.2 N in each direction at 0.5 MPa and 1233.7 N at 0.7 MPa, because both strokes work on the rod-side area of the 50 mm bore. The 120 mm stroke sits well inside the 250 mm standard range for this bore, and the piston carries the optional -S magnet that this model includes, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-travel signals.
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 helps when a 120 mm stroke must fit inside a tight fixture or guard. A fixed TPU bumper sits at each end, the 16 mm S45C hard-chrome rod resists wear, and speed runs 30-500 mm/s over 0.15-1.0 MPa (22-145 psi). Plan on about 528 N of real work at 0.5 MPa, which is roughly 44 kg lifted vertically with a 2:1 margin. Note this model is discontinued: the current drop-in is the ACED50X120, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD50X120S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X120S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X120S |
| Bore size | Ø50 mm |
| Stroke | 120 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 ACED50X120S (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 ACPD50X120S
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 ACPD50X120S Is Used
Symmetric weld-fixture clamping
The through-rod lets a weld jig clamp from the front while the rear rod drives a position flag, with 881.2 N of equal force on both sides of a 120 mm stroke.
Pusher stations on packaging lines
A dual-ended rod pushes cartons off a conveyor and returns a sensor carrier on the back end, moving at 30-500 mm/s between CMSE switch positions.
Reciprocating test rigs
Two rod ends drive alternating tool plates in a life-test machine, where the equal 1233.7 N at 0.7 MPa keeps the cycle symmetric in both directions.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD50X120S with the ACED50X120S
At 881.2 N per side at 0.5 MPa, this 50 mm bore suits clamping and handling loads in the 500 N class once a margin is applied. Step down to a 40 mm bore (571.8 N) for lighter jigs, or up to a 63 mm bore (1458.1 N) when the part weight grows. Because the piston drifts when air is lost, add a rod lock or pilot check valve if the load must stay put. FA/FB flanges, LB feet and clevis brackets bolt to the ISO 21287 face, and the -S magnet on this unit pairs with CMSE / DMSE switches. For new designs, order the ACED50X120 instead.
Replacement checklist
- ✓ Current-production ACE → ACED50X120S
- ✓ 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 ACPD50X120S FAQ
Because a rod exits both covers, force is equal both ways: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, both measured on the rod-side area of the 50 mm bore. At 1.0 MPa the maximum reaches 179.7 kgf. In practice, budget about 528 N of usable work at 0.5 MPa, which lifts roughly 44 kg vertically with a 2:1 margin.
The hard-anodized aluminium body is an ISO 21287 compact format, about 50% shorter in mounting length than an ISO 15552 profile cylinder, with FA/FB flange and LB foot options. Each end carries a fixed TPU bumper that only decelerates the piston; it never holds or brakes a load. The ACPD50X120S is discontinued, so confirm ISO 21287 dimensions and order the ACED50X120 as the current drop-in.
Related AirTAC ACE Cylinders
Request a Quote for the ACED50X120S
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