This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X25-10SB, 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 ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB is a double acting, double rod, adjustable stroke 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 ACEJ12X25-10SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X25-10SB
- 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 ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB
This is a double acting, adjustable-stroke compact cylinder with a 12 mm bore and 25 mm stroke, discontinued by AirTAC. The -10 code gives a 10 mm adjustment window: an external stop screw trims the extend stroke on site, so the usable range is 15-25 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa that rises to 79.2 N. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits slim jigs and guarded stations where a full-length body cannot. The B code gives a male rod thread on the 6 mm rod, and the S code means the magnet is fitted, so CMSE / DMSE switches can be mounted for end-of-stroke sensing.
Plan on roughly 34 N of real work at 0.5 MPa (about 0.6 of the 56.5 N push rating), which lifts about 2.9 kg vertically with a 2:1 margin - enough for small covers, chutes or light clamps. The hard-anodized aluminium body carries an S45C hard-chrome rod, with fixed TPU bumpers at both ends and speed from 30-500 mm/s. Because this model is discontinued, order the current ACEJ12X25 as the drop-in successor and confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN-standard footprint.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X25-10SB |
| Bore size | Ø12 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| 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 ACEJ12X25-10SB (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 kgf |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| 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 ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB Is Used
Small-part ejection
Ejects stamped terminals or molded caps off a die with 56.5 N at 0.5 MPa; the 15-25 mm trimmed stroke matches shallow die pockets.
Indexed fixture clamping
Clamps PCB or bracket fixtures on an SMT line, with the fitted magnet and a CMSE switch confirming the clamp is home before the cycle starts.
Chute gate diverting
Kicks light product gates on packaging conveyors; the compact body mounts beside guide rails where a full-length profile cylinder will not fit.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB with the ACEJ12X25-10SB
Size the load against 56.5 N push at 0.5 MPa (79.2 N at 0.7 MPa). If the part or clamp needs more, step up to the 16 mm bore at 100.5 N push; if less, the same family works lighter at shorter strokes. The stop screw only shortens the extend stroke within the 10 mm window - it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. For new builds, specify the current-production ACEJ12X25 instead and verify the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X25-10SB
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X25-10SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa it pushes 79.2 N and pulls 59.4 N. Theoretical maximum is 11.5 kgf at 1.0 MPa. As a working rule, count on about 34 N of usable push at 0.5 MPa, which lifts roughly 2.9 kg vertically with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
The -10 code is a 10 mm window: a stop screw shortens the 25 mm extend stroke to any setting between 15 and 25 mm. It is an end stop only - it never holds a load if air is lost. This model is discontinued; the current-production replacement is the ACEJ12X25 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, because the ACP was DIN-standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X25-10SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X25-10SB replacement — usually within 7-8 hours.