This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED12X40S, 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 ACPD12X40S
The AirTAC ACPD Double Rod Compact Cylinder ACPD12X40S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø12mm bore and 40mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED12X40S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM3×0.5
- StatusDiscontinued → ACED12X40S
- 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 ACPD12X40S
Double acting with a rod leaving both covers, the ACPD12X40S pushes and pulls with identical force because each stroke works on the rod-side area: 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa. The 12 mm bore drives a 6 mm rod over a 40 mm stroke, fed through M5x0.8 ports, with a fixed TPU bumper at each end. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing.
The short ISO 21287-class body cuts mounting length by roughly half compared with an ISO 15552 profile cylinder, which is why it suits slim fixtures and guarded assemblies. A practical sizing rule: about 25 N of that 42.4 N rating is realistic working output at 0.5 MPa, which is roughly 2.5 kg of vertical lift with a margin. Note that this model is discontinued; the current-production successor is the ACED12X40, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD12X40S Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD12X40S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED12X40S |
| Bore size | Ø12 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED12X40S (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 (Ø12mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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 ACPD12X40S
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×40 | 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 ACPD12X40S Is Used
Signalling slide on a small assembly station
The fitted -S magnet pairs with CMSE or DMSE switches, so a bench-top fixture gets position feedback at both ends of the 40 mm travel without external flags.
Light ejection of stamped micro-parts
With 59.4 N available in either direction at 0.7 MPa, the through-rod can kick small components off a die or nest from either side of the tooling.
Symmetric push-pull gate on a lab feeder
Equal 42.4 N output both ways lets one M5x0.8-ported cylinder alternate a sliding gate without reversing plumbing logic, at speeds from 30 to 500 mm/s.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD12X40S with the ACED12X40S
At 42.4 N per direction this bore serves light clamping, gating and part-presenting duties; step up to the 16 mm bore (75.4 N) for a bit more grip or down to a smaller single-rod ACP if the through-rod is not needed. The 40 mm stroke sits inside the 50 mm standard limit for bore 12, so no made-to-order build is required. The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag. Because the piston drifts when air is lost, add a rod lock or pilot check if the load must stay put. Order the ACED12X40 as the current replacement and verify the ISO 21287 footprint.
Replacement checklist
- ✓ Current-production ACE → ACED12X40S
- ✓ 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 ACPD12X40S FAQ
Yes - the double-rod design means both strokes use the rod-side area, so force is equal each way: 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa, with a peak of about 8.6 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.
AirTAC no longer produces the ACPD family. The direct successor is the ACED12X40 (swap the P for an E), which matches the same 12 mm bore, 40 mm stroke and force class in the ISO 21287 short-body format. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions against your fixture before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACED12X40S
Send us the quantity and destination. We confirm price, stock and lead time on the ACED12X40S replacement — usually within 7-8 hours.