This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X25-10, 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 ACPJ Adjustable Compact Cylinder ACPJ16X25-10 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm 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 ACEJ16X25-10 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPJ16X25-10 is a double acting compact cylinder with an adjustable extend stroke: the -10 code gives a 10 mm stop-screw window, so the 25 mm stroke can be trimmed anywhere from 15 to 25 mm on site. The hard-anodized aluminium body and S45C hard-chrome rod keep the short ISO 21287-class package rigid, and fixed TPU bumpers sit at both ends. Note that this model is discontinued; the current-production successor is the ACEJ16X25.
Because the body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into shallow fixtures, slide clamps and guarded stations where a full-length body will not reach. This unit has no magnet fitted (no -S code), so no CMSE or DMSE switch can be mounted; order an -S variant if sensing is needed. Runs on 40 um filtered air at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X25-10 |
| Bore size | Ø16 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 75 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ16X25-10 (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 75 N |
| 0.7 MPa | 106 N |
| Max (@1.0 MPa) | 15 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).
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | 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).
Trims a 15-25 mm extend stroke to press dowel pins into aluminium housings, using about 60 N of usable force at 0.5 MPa.
A stop screw sets the exact gate-swing stroke per carton size on a filling line, no cylinder swap needed when the format changes.
The stop screw only shortens the extend stroke and is not a mid-stroke lock, so the rod still drifts if air is lost. Female M4x0.7 rod thread, PT ports, FA flange or LB foot mounting. Discontinued - confirm ISO 21287 mounting dimensions and switch to the ACEJ16X25.
Replacement checklist
The -10 code gives a 10 mm adjustment window, so the 25 mm extend stroke can be set anywhere from 15 to 25 mm with the external stop screw. Ports are M5x0.8, the rod thread is female M4x0.7, and speed runs 30-500 mm/s.
The ISO 21287-class compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange or LB foot mounts bolt straight onto standard fixture faces. A fixed TPU bumper decelerates the rod at each end only - it never holds or brakes a load. The ACPJ family is no longer produced; the ACEJ16X25 is the current direct successor, so confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X25-10 replacement — usually within 7-8 hours.