This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X120S, 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 ACPD20X120S
The AirTAC ACPD Double Rod Compact Cylinder ACPD20X120S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X120S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- StatusDiscontinued → ACED20X120S
- 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 ACPD20X120S
Double acting with a rod leaving both covers, the ACPD20X120S pushes and pulls with identical output because each stroke works on the rod-side area: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa in either direction. The 20 mm bore carries a 10 mm through-rod with a female M6x1.0 thread, and the 120 mm travel is a made-to-order length since standard bore-20 strokes stop at 100 mm. Note this model is discontinued - the current direct is the ACED20X120, so confirm ISO 21287 mounting dimensions before swapping.
The short ISO 21287 body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and gantries. The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag. The S code means the optional -S magnet is fitted, so CMSE / DMSE switches mount directly. A fixed TPU bumper sits at each end, speed spans 30-500 mm/s, and pressure runs 0.15-1.0 MPa (22-145 psi).
Airtac ACPD Double Rod Compact Cylinder ACPD20X120S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X120S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X120S |
| Bore size | Ø20 mm |
| Stroke | 120 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 ACED20X120S (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 ACPD20X120S
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 20 | 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 (double rod, adjustable stroke).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD20X120S Is Used
Reciprocating test fixtures
The equal 117.8 N force in both directions suits a lab press cycling a sample up and down at 30-500 mm/s, with the rear rod driving a switch flag for cycle counting.
Compact ejection station
On a small assembly jig where a full-length profile cylinder will not fit, the short body plus 120 mm made-to-order stroke ejects finished parts from a narrow nest.
Position-signalled slide
With the -S magnet fitted, CMSE or DMSE switches on the 20 mm bore body confirm end-of-stroke on a pick-and-place slide lifting parts of about 6 kg with margin.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD20X120S with the ACED20X120S
Size around the 117.8 N bidirectional output at 0.5 MPa: the bore-16 ACPD gives 75.4 N if your load is lighter, while the bore-25 version reaches 206.2 N if you need more headroom. Remember the piston drifts when air is lost - add a rod lock or pilot check if the load must stay put. Mounting covers FA/FB flange and LB foot, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACED20X120 as the current-production replacement and verify ISO 21287 dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACED20X120S
- ✓ 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 ACPD20X120S FAQ
Yes - the double-rod design works on the rod-side area in both directions, so force is equal either way: 117.8 N at 0.5 MPa, 164.9 N at 0.7 MPa, and a maximum of 24.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s. The 120 mm stroke is non-standard for the 20 mm bore and is made to order.
The ISO 21287 compact aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow guards and tight fixtures. Each end carries a fixed TPU bumper that simply decelerates the piston at the ends of travel; it is not adjustable and it never holds or brakes a load, so use a rod lock or pilot check where a stopped position must be kept. This model is discontinued - the ACED20X120 is the current replacement.
Related AirTAC ACE Cylinders
Request a Quote for the ACED20X120S
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X120S replacement — usually within 7-8 hours.