This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE12X25LB, 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 ACP12X25LB
The AirTAC ACP Compact Cylinder ACP12X25LB is a double acting DIN-standard tight/compact air cylinder with a Ø12mm bore and 25mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE12X25LB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM3×0.5
- StatusDiscontinued → ACE12X25LB
- 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 ACP12X25LB
The ACP12X25LB is a double acting compact cylinder in the discontinued AirTAC ACP DIN-standard series, with a 12 mm bore, 25 mm stroke and LB foot mounting. 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. Its 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), 30-500 mm/s.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures, small guarding and bench-top tooling. In practice, plan on roughly 34 N of usable push at 0.5 MPa (about 3.5 kg of vertical work) rather than the full rating. A fixed TPU bumper at each end only softens end-of-travel; it never holds a load, so use a rod lock or pilot check valve where position must be kept. This model is discontinued - the current-production direct is ACE12X25, same bore, stroke and force class; confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP12X25LB Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP12X25LB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE12X25LB |
| Bore size | Ø12 mm |
| Stroke | 25 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 ACE12X25LB (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 ACE12X25LB 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 ACP12X25LB
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×25 | 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 ACP12X25LB Is Used
Micro part ejection
With about 3.5 kg of practical vertical push at 0.5 MPa, the 12 mm bore ejects small plastic caps or stamped clips off a bench-top die where space is minimal.
Compact slide actuation
The 56.5 N push at 0.5 MPa and 25 mm stroke suit a light-duty linear slide indexing tiny components on an electronics assembly fixture.
Position-flagged test rigs
Order the -S magnet variant and add CMSE or DMSE switches to signal end positions on a small laboratory or QC test station.
Replacing the Airtac ACP Compact Cylinder ACP12X25LB with the ACE12X25LB
At 12 mm bore you are at the bottom of the range: 56.5 N push at 0.5 MPa. If your part or clamp needs more, the 16 mm bore gives 100.5 N and the 20 mm bore 157.1 N at the same pressure; if 56.5 N is ample, nothing smaller exists in the family. The 25 mm stroke is within the 50 mm standard limit for this bore. This LB foot version has a female M3x0.5 rod thread and M5x0.8 ports; no magnet is fitted, so if you need CMSE or DMSE switches, order the -S magnet code instead. Buy ACE12X25 as the current replacement and verify the ISO 21287 mounting footprint first.
Replacement checklist
- ✓ Current-production ACE → ACE12X25LB
- ✓ 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 ACP12X25LB FAQ
Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa it is 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 12 mm bore, 25 mm stroke, 6 mm rod, M5x0.8 ports, M3x0.5 female rod thread and LB foot mounting. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, temperature -20 to +70 C.
Order ACE12X25, the current-production ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in a matching short body. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions against your fixture before swapping. The ACE also accepts FA/FB flange, LB foot and CA/CB clevis hardware plus I/Y rod knuckles.
Related AirTAC ACE Cylinders
Request a Quote for the ACE12X25LB
Send us the quantity and destination. We confirm price, stock and lead time on the ACE12X25LB replacement — usually within 7-8 hours.