This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE12X120SB, 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 ACP Compact Cylinder ACP12X120SB is a double acting DIN-standard tight/compact air cylinder with a Ø12mm 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 ACE12X120SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder in the DIN-standard ACP series, the ACP12X120SB pairs a 12 mm bore with a long 120 mm stroke and a male-threaded 6 mm rod. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N and 59.4 N at 0.7 MPa. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim pick-and-place heads and sliding guards where a full-length body cannot. The 120 mm stroke is beyond the 50 mm standard limit for this bore, so it is a made-to-order build.
The hard-anodized aluminium body carries a fixed TPU bumper at both ends, and because the -S magnet code is specified, CMSE or DMSE reed and solid-state switches can be clamped on for end-of-stroke detection. This model is discontinued; the current-production direct is ACE12X120, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP12X120SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE12X120SB |
| Bore size | Ø12 mm |
| Stroke | 120 mm |
| Acting type | Double acting |
| 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 ACE12X120SB (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
The ACE12X120SB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 12 | 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).
The -S magnet lets CMSE or DMSE switches confirm the 120 mm stroke is fully open on a machine guard interlock, with the M5x0.8 port fed from a compact valve manifold.
About 56.5 N of push at 0.5 MPa is enough to strip small stamped clips or bushings from a punch tool, and the short body fits the narrow die space.
At 56.5 N push and 42.4 N pull at 0.5 MPa, this 12 mm bore suits light clamping, ejecting and part-presenting duties; step up to the 16 mm bore (100.5 N push) if the load creeps above about 30 N, or drop to a smaller stroke if 120 mm travel is more than the mechanism needs. Remember a plain unit of this type drifts when air is lost, so add a rod lock or pilot check valve for a held load. The male rod thread (B code) pairs with I/Y knuckles, and FA/FB flange, LB foot or CA/CB clevis brackets bolt to the mounting face. Order ACE12X120 as the current replacement and verify the ISO 21287 footprint first.
Replacement checklist
At 0.5 MPa it delivers 56.5 N push and 42.4 N pull; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum is 11.5 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, speed range 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C. The 120 mm stroke exceeds the 50 mm standard limit for a 12 mm bore, so it is made to order.
The B code gives a male rod thread on the 6 mm rod, and the S code means the optional -S magnet is fitted, so CMSE or DMSE reed or solid-state switches can be mounted for end-of-stroke signalling. The ACP family is discontinued; ACE12X120 is the current ISO 21287 direct with the same bore, stroke and force class - confirm the mounting dimensions before converting.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE12X120SB replacement — usually within 7-8 hours.