This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X25-20B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X25-20B in place of this model. 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 ACPJ16X25-20B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B is a double acting, 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 ACEJ16X25-20B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X25-20B
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B
This AirTAC cylinder is double acting with an adjustable stroke: air drives the rod out and pulls it back, and a stop screw trims the extend stroke anywhere in the ordered 20 mm window, so the 25 mm stroke can be set from 5 to 25 mm on site. At 0.5 MPa the 16 mm bore delivers 100.5 N push and 75.4 N pull, rising to 140.7 N at 0.7 MPa. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits tight jigs and guarding where a full-length body will not. Note this ACPJ family is discontinued; the current-production drop-in is ACEJ16X25.
The male rod thread (B code) bolts straight to I/Y knuckles, and FA flange or LB foot mounts attach to the same face. Fixed TPU bumpers at both ends decelerate the piston, and the body is hard-anodized aluminium with an S45C hard-chrome rod. A practical sizing rule: plan on roughly 60 N of real work at 0.5 MPa, which lifts about 5 kg vertically with a 2:1 margin. The magnet is not fitted on this version - order the -S code if you need CMSE / DMSE switch sensing. Confirm ISO 21287 mounting dimensions before swapping to the ACEJ.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X25-20B |
| Bore size | Ø16 mm |
| Stroke | 25 mm |
| Acting type | Double acting, 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 ACEJ16X25-20B (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 75 N |
| 0.7 MPa | 141 N | 106 N |
| Max (@1.0 MPa) | 21 kgf | |
The ACEJ16X25-20B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -20 | 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 (adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B Is Used
Fixture clamp with set stroke
Clamps thin aluminium brackets on a small CNC fixture; the 20 mm window lets you trim the 25 mm stroke so the male-threaded rod pad lands exactly on the part without crushing it.
Carton push-off on a packing bench
Ejects folded cartons from a magazine into a glue station; 100.5 N push at 0.5 MPa is enough for lightweight boxes, and the short body fits under a low guard frame.
Escalate to sensed version
On a parts-presence check station, order the -S variant of this bore so CMSE or DMSE switches can report end positions; this non-S unit has no magnet to trigger them.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20B with the ACEJ16X25-20B
Size between bores: at 0.5 MPa the 12 mm bore pushes 56.5 N while the 20 mm bore pushes 157.1 N, so this 16 mm model at 100.5 N sits in the middle for light clamping and positioning. The stop screw is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, and on air loss the rod still drifts, so add a separate holding valve if the load must stay put. If you need position feedback, specify the -S magnet version instead; this unit has no magnet. For new designs, order the current ACEJ16X25 and confirm the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X25-20B
- ✓ 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 ACPJ16X25-20B FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa push is 140.7 N and pull 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window, so the 25 mm extend stroke can be trimmed to anywhere between 5 and 25 mm with the stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, port M5x0.8, rod thread male (B code).
The ACPJ family is no longer in production. The current-production replacement is ACEJ16X25 (swap the P for an E), an ISO 21287 compact cylinder in the same bore, stroke and force class. Because the ACP was built to a DIN-standard body, confirm the ISO 21287 mounting dimensions against your fixture before swapping, and add the -S code if you want the optional magnet for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X25-20B
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