This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED12X70SB, 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.

The AirTAC ACPD Double Rod Compact Cylinder ACPD12X70SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø12mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED12X70SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting, double-rod compact cylinder built to the DIN-standard ACP pattern, the ACPD12X70SB pushes a 6 mm rod out of both covers, so it delivers 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa in each direction - the rod-side area is identical on both strokes. The 70 mm stroke exceeds the 50 mm standard limit for a 12 mm bore, so this unit is made to order. The optional -S magnet is fitted on this code, letting you bolt CMSE or DMSE reed or solid-state switches straight to the body.
The hard-anodized aluminium body and S45C hard-chrome rod run on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), with a 1.5 MPa (215 psi) proof rating and speeds of 30-500 mm/s. Fixed TPU bumpers sit at both ends. Because the through-rod resists rotation and carries a symmetric mount, it suits small clamping fixtures where the back-end rod can also drive a sensor flag. Note this model is discontinued: the current direct is ACED12X70 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping. As a sizing rule, plan on roughly 25 N (about 2.5 kg of thrust) of real work at 0.5 MPa rather than the full 42.4 N rating.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD12X70SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED12X70SB |
| Bore size | Ø12 mm |
| Stroke | 70 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 ACED12X70SB (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.
| 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).
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×70 | 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).
The symmetric through-rod pushes finished 20 g caps off a narrow mold nest from either side at 42.4 N, and the 70 mm made-to-order stroke clears a deep pocket where a standard-length body would not fit.
With the -S magnet fitted, CMSE switches track both end positions while the back-end rod drives a flag past a vision sensor, all inside a 12 mm bore footprint on a PCB fixture.
The male M3x0.5 rod thread accepts a small press pad that applies about 2.5 kg of usable thrust at 0.5 MPa to seat microtiter plates, with fixed TPU bumpers limiting end-of-travel shock.
At 42.4 N per direction at 0.5 MPa, this 12 mm bore suits light clamping and positioning; step up to the 16 mm bore (75.4 N) if you need more margin, or down to nothing smaller - 12 mm is the smallest in the range. The 70 mm stroke is a made-to-order length above the 50 mm standard cap for this bore. The B code gives a male M3x0.5 rod thread and the S code carries the magnet for CMSE/DMSE switches. Like every double-rod cylinder it will drift if air is lost, so add a rod lock or pilot check for a held load. Order ACED12X70 as the current-production replacement and verify the ISO 21287 hole pattern first.
Replacement checklist
Because a rod exits both covers, output is equal both ways: 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa, with a maximum of 8.6 kgf at 1.0 MPa.
It is a short-body compact cylinder whose mounting length is about 50% less than an ISO 15552 profile cylinder, with a hard-anodized aluminium body, M5x0.8 ports and FA/FB flange or LB foot mounts. The 70 mm stroke is non-standard for a 12 mm bore (50 mm max standard) and is made to order. The ACPD line is discontinued; ACED12X70 is the current ISO 21287 direct - confirm its mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED12X70SB replacement — usually within 7-8 hours.