This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE12X20B, 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 ACP Compact Cylinder ACP12X20B
The AirTAC ACP Compact Cylinder ACP12X20B is a double acting DIN-standard tight/compact air cylinder with a Ø12mm bore and 20mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE12X20B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM3×0.5
- StatusDiscontinued → ACE12X20B
- 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 ACP Compact Cylinder ACP12X20B
The ACP12X20B is a double acting compact cylinder in the DIN-standard ACP series, with a 12 mm bore and 20 mm stroke driving a 6 mm male-threaded rod (the B code). At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those rise to 79.2 N and 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi), speed runs 30-500 mm/s, and the M5x0.8 ports follow the bore. The hard-anodized aluminium body and S45C hard-chrome rod suit small clamping and positioning heads.
Because the short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, it slots into slim fixtures and guarding where a full-length body cannot. Note this unit is discontinued; the current-production direct is the ACE12X20, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP12X20B Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP12X20B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE12X20B |
| Bore size | Ø12 mm |
| Stroke | 20 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 ACE12X20B (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 | 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 ACE12X20B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACP Compact Cylinder ACP12X20B
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×20 | 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 ACP Compact Cylinder ACP12X20B Is Used
Micro part ejection
Ejecting small machined bushings or pressed pins from a locating nest, where 56.5 N of push at 0.5 MPa is ample and the 20 mm stroke clears a shallow pocket.
Optical sensor actuation
Toggling a photoelectric or proximity flag on an inspection station; add the -S magnet code and a CMSE switch to confirm end positions electrically.
Light hold-down clamp
Clamping thin PCBs or gaskets during a bonding or testing step, using about 34 N of practical holding force from the 12 mm bore at 0.5 MPa.
Replacing the Airtac ACP Compact Cylinder ACP12X20B with the ACE12X20B
At 12 mm bore this is the smallest ACP size: 56.5 N push at 0.5 MPa versus 100.5 N from a 16 mm bore and 245.4 N from a 25 mm bore, so step up if your jig needs more than about 3 kg of vertical lift. The 20 mm stroke sits well inside the 50 mm maximum standard stroke for this bore. The B code gives a male rod thread with PT ports; if you need position feedback, order the -S variant to enable the optional magnet for CMSE / DMSE switches, since this base code has no magnet. For new builds, specify the ACE12X20 instead - the ACP line is discontinued and ACE is the current ISO 21287 successor.
Replacement checklist
- ✓ Current-production ACE → ACE12X20B
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACP Compact Cylinder ACP12X20B FAQ
Push is 56.5 N and pull is 42.4 N at 0.5 MPa; at 0.7 MPa it reaches 79.2 N push and 59.4 N pull, with a theoretical maximum of 11.5 kgf at 1.0 MPa. It is double acting with a 6 mm male-threaded rod, M5x0.8 ports, 0.15-1.0 MPa (22-145 psi) operating pressure, 30-500 mm/s speed and a fixed TPU bumper at each end. This model is discontinued - the ACE12X20 is the current replacement.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits tight jigs and gantries. Switches are possible only when you order the optional -S magnet code, which allows CMSE or DMSE reed and solid-state switches; this base ACP12X20B has no magnet fitted. Remember the bumper does not hold a load - use a rod lock or check valve if the position must be kept on air loss.
Request a Quote for the ACE12X20B
Send us the quantity and destination. We confirm price, stock and lead time on the ACE12X20B replacement — usually within 7-8 hours.