This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X25-20SB, 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 ACPJ16X25-20SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X25-20SB 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 ACEJ16X25-20SB (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 → ACEJ16X25-20SB
- 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 ACPJ16X25-20SB
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, 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 ACEJ16X25-20SB (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 | 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 ACPJ16X25-20SB
| 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 (double rod, 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
Request a Quote for the ACEJ16X25-20SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X25-20SB replacement — usually within 7-8 hours.