This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X50, the same code under the new prefix. 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 ACPD20X50
The AirTAC ACPD Double Rod Compact Cylinder ACPD20X50 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 50mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X50 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- StatusDiscontinued → ACED20X50
- 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 ACPD20X50
The ACPD20X50 is a double acting compact cylinder with a rod leaving both covers, so it pushes and pulls with the same 117.8 N at 0.5 MPa because both strokes work on the rod-side area. The through-rod resists rotation and side load, gives a symmetric mount, and the rear rod can carry a sensor flag. Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits tight jigs, guards and gantries.
At 0.7 MPa the same 20 mm bore delivers 164.9 N in each direction, and the theoretical ceiling is 24.0 kgf at 1.0 MPa. The 50 mm stroke sits well inside the 100 mm standard limit for this bore, the fixed TPU bumper decelerates at both ends, and speed runs 30-500 mm/s. Note this model is discontinued: the current-production direct is the ACED20X50, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD20X50 Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X50 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X50 |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED20X50 (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 (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 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 ACPD20X50
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 (double rod, adjustable stroke).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD20X50 Is Used
Push-pull slide transfer
A 50 mm through-rod stroke moves small fixture slides on an electronics assembly line with equal 117.8 N force in each direction, so the return stroke needs no derating.
Two-position part presence flag
The rear rod drives a sensor flag past a photoelectric eye on a packaging machine, confirming the clamp reached both end positions at 30-500 mm/s speed.
Compact jig ejector
The short body, about 50% shorter than an ISO 15552 profile cylinder, ejects machined aluminum brackets from a drill jig where a full-length body cannot fit.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD20X50 with the ACED20X50
Size both ways: if 117.8 N per side is more than the job needs, the bore 16 ACPD gives 75.4 N; if the load demands more, step up to bore 25 for 206.2 N at 0.5 MPa. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check if the load must be held. Mount with FA/FB flange or LB foot, and order the -S code only if you need the optional magnet for CMSE / DMSE switches - without it no sensor can be fitted. This unit is discontinued; the ACED20X50 is the current replacement in the same bore, stroke and force class.
Replacement checklist
- ✓ Current-production ACE → ACED20X50
- ✓ 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 ACPD20X50 FAQ
Yes - the double-rod design means both strokes use the rod-side area, so force is equal both ways: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, with a theoretical maximum of 24.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the bore 20 port is M5x0.8 with a female M6x1.0 rod thread.
AirTAC no longer produces the ACPD family. Swap the P for an E and order the ACED20X50, the current ISO 21287 successor in the same 20 mm bore, 50 mm stroke and force class. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, since the ACP was built to the older DIN-standard compact pattern.
Request a Quote for the ACED20X50
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X50 replacement — usually within 7-8 hours.