This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X40SB, 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 ACPD20X40SB
The AirTAC ACPD Double Rod Compact Cylinder ACPD20X40SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm 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 ACED20X40SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- StatusDiscontinued → ACED20X40SB
- 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 ACPD20X40SB
A double acting compact cylinder with a rod leaving both covers, the ACPD20X40SB pushes and pulls with identical force 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 drives a 10 mm rod through a 40 mm stroke at 30-500 mm/s, with a fixed TPU bumper at each end and M5x08 ports - M5x0.8, to be exact - on a hard-anodized aluminium body.
Because the through-rod sticks out at the rear as well as the front, the back end can carry a sensor flag or a second tooling plate while resisting rotation and side load. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke detection. Note that ACPD is discontinued: the current-production direct is the ACED20X40, and its short ISO 21287 body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder.
Airtac ACPD Double Rod Compact Cylinder ACPD20X40SB Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X40SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X40SB |
| Bore size | Ø20 mm |
| Stroke | 40 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 ACED20X40SB (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 ACPD20X40SB
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 20 | 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 ACPD20X40SB Is Used
Fixture clamping with rear sensing
Clamps small aluminium brackets in a machining jig at 117.8 N while the rear rod carries a flag past a CMSE switch for cycle confirmation.
Symmetric push-pull transfer
Moves PCB trays between two conveyor stops where equal 164.9 N force at 0.7 MPa in both directions keeps indexing speed identical each way.
Lab dosing head actuation
Drives a small dispensing head on a filling rig, the 40 mm stroke covering vial pitch changes at 30-500 mm/s with DMSE switches on the -S magnet.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD20X40SB with the ACED20X40SB
Size between neighbours: the 16 mm bore gives 75.4 N at 0.5 MPa while the 25 mm bore reaches 206.2 N, so this 20 mm model at 117.8 N sits mid-range for light clamping and transfer duty. Both strokes deliver the same force thanks to the double-rod layout. The male rod thread (B code) suits I/Y rod knuckles, and FA/FB flange or LB foot mounts bolt to the same face. A plain cylinder like this drifts when air is lost, so add a rod lock or pilot check if the load must stay put. Order the ACED20X40 as the current replacement and confirm ISO 21287 mounting dimensions before swapping, since the ACP follows the DIN-standard footprint.
Replacement checklist
- ✓ Current-production ACE → ACED20X40SB
- ✓ 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 ACPD20X40SB FAQ
It is a double-rod cylinder, so force is equal both ways: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa on each stroke, with a peak 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 20 mm bore uses M5x0.8 ports.
The hard-anodized aluminium body follows the short DIN-standard ACP format, about 50% shorter in mounting length than an ISO 15552 profile cylinder, with a fixed TPU bumper at each end that only decelerates the piston near the ends of travel. ACPD is discontinued; the current-production successor is the ACED20X40 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACED20X40SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X40SB replacement — usually within 7-8 hours.