This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X50S, 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 ACPD20X50S
The AirTAC ACPD Double Rod Compact Cylinder ACPD20X50S 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 ACED20X50S (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 → ACED20X50S
- 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 ACPD20X50S
Double acting with a rod leaving both covers, the ACPD20X50S pushes and pulls with identical output: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa in either direction, because both strokes work on the rod-side area. The through-rod resists rotation and side load, gives a symmetric mounting point, and the rear rod can carry a sensor flag. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped straight onto the 20 mm bore body.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why this size fits tight jigs, guards and gantries. A hard-anodized aluminium body, S45C hard-chrome rod, fixed TPU bumpers at both ends and a female M6x1.0 rod thread complete the build. Note the family is discontinued: the current-production direct is the ACED20X50, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD20X50S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X50S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X50S |
| 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 ACED20X50S (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 ACPD20X50S
| 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 ACPD20X50S Is Used
Reciprocating parts transfer
The through-rod gives equal 117.8 N push and pull at 0.5 MPa, ideal for shuttling small aluminium housings between two machining stations on a short 50 mm stroke.
Position-flagged fixture clamping
With the -S magnet fitted, CMSE or DMSE switches report end positions on a jig clamp where the rear rod carries a second flag for redundant sensing.
Compact electronics assembly gantry
The short body, about 50% shorter than an ISO 15552 profile cylinder, slots into low-clearance pick-and-place frames lifting PCB trays of roughly 6 kg with margin.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD20X50S with the ACED20X50S
At 20 mm bore the ACPD20X50S sits in a light-duty band: step down to the 16 mm bore for 75.4 N at 0.5 MPa, or up to 25 mm for 206.2 N if the load grows. The 50 mm stroke is well inside the 100 mm standard limit for this bore, so no made-to-order build is needed. Match FA/FB flange or LB foot mounting to your fixture, and remember the -S magnet on this model is what enables CMSE / DMSE switch sensing. A plain double-rod cylinder will drift if air is lost, so add a rod lock or pilot check for held loads. Order the ACED20X50 as the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACED20X50S
- ✓ 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 ACPD20X50S FAQ
Yes. Because a rod exits both covers, 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 maximum of 24.0 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is M5x0.8.
The ACPD20X50S is discontinued. The current-production replacement is the ACED20X50, an ISO 21287 compact cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP was built to a DIN-standard footprint. This unit does carry the optional -S magnet for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACED20X50S
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X50S replacement — usually within 7-8 hours.