This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X25-30S, 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 ACPJ16X25-30S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X25-30S 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 ACEJ16X25-30S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X25-30S
- 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 ACPJ16X25-30S
This is a double acting compact cylinder with an adjustable extend stroke: the -30 code gives a 30 mm trim window, so the stop screw lets you dial the 25 mm stroke anywhere from 0 to 25 mm on site. The 16 mm bore delivers 100.5 N push and 75.4 N pull at 0.5 MPa, rising to 140.7 N at 0.7 MPa, with a theoretical peak of 20.5 kgf at 1.0 MPa. A fixed TPU bumper sits at both ends, and the -S code means the magnet is fitted, so CMSE or DMSE switches can be mounted directly.
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 tight jigs and guarding where a full-length body will not fit. As a rule of thumb, plan on about 60 N of usable push at 0.5 MPa, which lifts roughly 3 kg vertically with a 2:1 margin. Note that the stop screw trims the extend stroke only; it is not a mid-stroke lock, and the rod will drift if air is lost. This model is discontinued - the current-production replacement is the ACEJ16X25, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X25-30S |
| 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 ACEJ16X25-30S (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 (Ø16mm)
| 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).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-30S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -30 | 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 ACPJ16X25-30S Is Used
Small-part ejection on assembly fixtures
The trimmed 0-25 mm extend stroke and 100.5 N push at 0.5 MPa suit knocking finished bushings or pins out of a jig without disturbing the fixture.
Position-verified clamping in test rigs
With the -S magnet fitted, CMSE or DMSE switches report end-of-stroke on a 25 mm clamp move, ideal for automated electronics test stations.
Compact press-fit of connectors
About 60 N of usable push at 0.5 MPa presses small terminals and dowels in confined gantry heads where a full-length body cannot fit.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-30S with the ACEJ16X25-30S
Size the bore against your load: at 0.5 MPa the 16 mm bore pushes 100.5 N, while the 12 mm bore manages 56.5 N and the 20 mm bore reaches 157.1 N - step up if your tooling mass or friction load exceeds about 60 N of real work. Match the mounting to the fixture using FA/FB flange or LB foot options on the ISO 21287 face. If you need position feedback, this unit already carries the optional -S magnet for CMSE / DMSE switches. For new builds, order the ACEJ16X25 instead, as this ACPJ version is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X25-30S
- ✓ 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 ACPJ16X25-30S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those rise to 140.7 N and 105.6 N, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The bore is 16 mm with an 8 mm rod, M5x0.8 ports, a female M4x0.7 rod thread, and a 25 mm stroke adjustable within a 30 mm window. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a fixed TPU bumper at both ends.
The short ISO 21287-class aluminium body cuts mounting length by about 50% versus an ISO 15552 profile cylinder, so it fits shallow fixtures and guarding, and FA/FB flange or LB foot mounts bolt straight to standard faces. The ACPJ family is discontinued; the ACEJ16X25 is the current drop-in in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before converting.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X25-30S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X25-30S replacement — usually within 7-8 hours.