This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X150-50, 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 ACPJ16X150-50 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X150-50 (ISO 21287 ACE), in the same bore, stroke and force class.
This is a double acting compact cylinder with an adjustable stroke: air drives the rod out and pulls it back, and a stop screw on the body trims the extend stroke anywhere inside the ordered 50 mm window, giving a usable range of 100-150 mm. The 150 mm stroke is longer than the 75 mm standard limit for this bore, so it is a made-to-order build.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into cramped slide assemblies and fixture plates. Note the fixed TPU bumper at each end only softens the ends of travel - it never holds or brakes a load, and on air loss the piston drifts. This model is discontinued; the current-production direct is ACEJ16X150, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X150-50 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X150-50 |
| Bore size | Ø16 mm |
| Stroke | 150 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 ACEJ16X150-50 (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. |
| ×150 | Stroke length in mm. |
| -50 | 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).
A short body that is about 50% shorter in mounting length than an ISO 15552 profile cylinder fits beside a narrow conveyor frame, kicking light cartons sideways at 30-500 mm/s.
The female M4x0.7 rod thread picks up a small pressing plate to apply about 60 N of usable force to vial caps, with the stop screw dialling the stroke down for shallow trays.
If the machine must hold position through a power cut, add an external locking unit, because the stop screw only sets the extend stroke and does not lock the piston. Order the -S version if you later want CMSE / DMSE switches; this code has no magnet. FA flange or LB foot mount on the standard face, and ACEJ16X150 is the current replacement to quote.
Replacement checklist
The -50 code gives a 50 mm adjustment window, so the stop screw trims the 150 mm extend stroke down to any length from 100 to 150 mm. The 150 mm stroke is a made-to-order length, since the standard maximum for a 16 mm bore is 75 mm.
It is a short-body compact cylinder with a hard-anodized aluminium body, an S45C hard-chrome rod, M5x0.8 ports and a fixed TPU bumper at both ends that only decelerates end of travel. This code has no magnet, so no switch can be read - order the -S variant to enable CMSE or DMSE switches. The model is discontinued; ACEJ16X150 is the current-production successor in the same bore, stroke and force class, so verify the ISO 21287 mounting dimensions before you swap.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X150-50 replacement — usually within 7-8 hours.