This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ16X25-20SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ16X25-20SB 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 ACPJ16X25-20SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20SB 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 ACEJ16X25-20SB (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 → ACEJ16X25-20SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20SB
The ACPJ16X25-20SB is a discontinued double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 25 mm stroke by up to 20 mm, giving a usable range of 5-25 mm. Air drives the rod both ways, a fixed TPU bumper sits at each end, and the -S code on this model means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted directly on the hard-anodized aluminium body. The B code gives a male S45C hard-chrome rod thread.
At 0.5 MPa the 16 mm bore pushes 100.5 N and pulls 75.4 N; at 0.7 MPa that rises to 140.7 N push. Plan on roughly 60 N of real work (about 6 kg lifted vertically with a 2:1 margin) rather than the full rating. The ISO 21287-class short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and gantries. This model is discontinued - the current-production drop-in is the ACEJ16X25; confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X25-20SB |
| 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 ACEJ16X25-20SB (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 ACEJ16X25-20SB 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 ACPJ16X25-20SB
| 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 ACPJ16X25-20SB Is Used
Small-parts ejection on assembly fixtures
The trimmed 5-25 mm extend range and 100.5 N push at 0.5 MPa suit knocking plastic caps or terminals out of a nest on an electronics assembly line, with the male rod thread taking a custom kicker.
Position-confirmed clamping in test rigs
With the -S magnet fitted, CMSE or DMSE switches signal clamp and retract on a PCB test fixture, while the 20 mm window lets the technician dial the clamp travel down to 5 mm for delicate boards.
Compact press-fit of bushings
About 6 kg of practical vertical force at 0.5 MPa is enough to seat small bushings or labels in a jig where a full-length ISO 15552 profile cylinder would never fit.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X25-20SB with the ACEJ16X25-20SB
Size both ways: if 100.5 N push at 0.5 MPa is more than the job needs, the 12 mm bore gives 56.5 N; if it falls short, step up to the 20 mm bore for 157.1 N. The 20 mm window suits fixtures where the extend stroke is set once on site - it shortens the stroke only and never lengthens it past 25 mm. Remember the stop is a mechanical end stop, not a mid-stroke lock: on air loss the piston still drifts. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet pairs with CMSE / DMSE switches. Order the ACEJ16X25 as the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X25-20SB
- ✓ 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 ACPJ16X25-20SB FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa it pushes 140.7 N and pulls 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. The -20 code is a 20 mm adjustment window: a stop screw shortens the 25 mm extend stroke to anywhere in a 5-25 mm range. It is a mechanical end stop only - on air loss the piston still drifts, so it is not a load-holding brake. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, port M5x0.8, rod 8 mm with male thread.
No - the ACPJ family is discontinued. The current-production drop-in is the ACEJ16X25, which matches the same bore, stroke and force class; confirm the ISO 21287 mounting dimensions before swapping since the ACP is DIN-standard. On this -S version the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be used; without the -S code there is no magnet. FA/FB flange and LB foot mountings, plus I/Y rod knuckles, bolt straight to the standard face, and the fixed TPU bumpers decelerate the rod at both ends.
Related AirTAC ACE Cylinders
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