This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE12X125S, 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 ACP12X125S
The AirTAC ACP Compact Cylinder ACP12X125S is a double acting DIN-standard tight/compact air cylinder with a Ø12mm bore and 125mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE12X125S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke125 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM3×0.5
- StatusDiscontinued → ACE12X125S
- 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 ACP12X125S
A double acting compact cylinder in the DIN-standard ACP series, the ACP12X125S pairs a 12 mm bore with a 125 mm stroke and ships with the optional -S magnet already fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N push at 0.7 MPa, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. 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), 30-500 mm/s.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits slim jigs and guarded assemblies. Because 125 mm exceeds the 50 mm maximum standard stroke for a 12 mm bore, this unit is made to order. Note this model is discontinued; the current direct is ACE12X125, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP12X125S Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP12X125S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE12X125S |
| Bore size | Ø12 mm |
| Stroke | 125 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 ACE12X125S (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 ACE12X125S 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 ACP12X125S
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×125 | 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 ACP12X125S Is Used
Position-verified micro part ejection
The long 125 mm stroke with the fitted -S magnet and a DMSE switch lets a small electronics fixture confirm full retraction before the next PCB is indexed.
Light-duty gate latch on a compact machine
With 56.5 N push at 0.5 MPa the cylinder latches a small sliding guard door, and the short body fits where a full-length profile cylinder cannot.
Replacing the Airtac ACP Compact Cylinder ACP12X125S with the ACE12X125S
At 56.5 N push (0.5 MPa) this 12 mm bore suits light clamping and small-part transfer. Step down is not possible in this series, so if the load is under about 34 N of real work this is already the smallest option; if you need more, the 16 mm bore gives 100.5 N push at the same pressure. The 125 mm stroke is non-standard for this bore (50 mm max standard), so expect a made-to-order build. FA/FB flange, LB foot and CA/CB clevis mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. This model is discontinued - order ACE12X125 as the current-production equivalent and verify ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACE12X125S
- ✓ 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 ACP12X125S FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum 11.5 kgf at 1.0 MPa. It is double acting with a 12 mm bore, 125 mm non-standard stroke, 6 mm rod with M3x0.5 female thread, M5x0.8 port, PT body ports, 0.15-1.0 MPa (22-145 psi) operating pressure, 30-500 mm speed range and a fixed TPU bumper at both ends.
Order ACE12X125, the ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in current production. The ACP was DIN-standard, so confirm the ISO 21287 mounting dimensions and mounting bracket fit before swapping. If you also need single-acting or double-rod variants, the ASP/ATP and ACPD types have likewise moved into the ACE family.
Related AirTAC ACE Cylinders
Request a Quote for the ACE12X125S
Send us the quantity and destination. We confirm price, stock and lead time on the ACE12X125S replacement — usually within 7-8 hours.