This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X30-20S, 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 ACPJ16X30-20S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X30-20S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 30mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X30-20S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X30-20S
- 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 ACPJ16X30-20S
Double acting and adjustable, the ACPJ16X30-20S is a discontinued DIN-standard compact cylinder with a 16 mm bore and 30 mm stroke. The -20 code gives a 20 mm adjustment window, so a stop screw trims the extend stroke anywhere in a 10-30 mm range on site. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N, rising to 140.7 N at 0.7 MPa, with a theoretical peak of 20.5 kgf at 1.0 MPa. As a rule of thumb, plan on roughly 60 N of usable work at 0.5 MPa, which lifts about 3 kg vertically with a 2:1 margin.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. This -S version carries the optional magnet, so CMSE / DMSE reed or solid-state switches can be clamped straight onto the hard-anodized aluminium body. The S45C hard-chrome rod ends in a female M4x0.7 thread, and fixed TPU bumpers sit at both ends. Production has ended: the current drop-in is the ACEJ16X30, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X30-20S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X30-20S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X30-20S |
| Bore size | Ø16 mm |
| Stroke | 30 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 ACEJ16X30-20S (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 ACPJ16X30-20S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×30 | 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 ACPJ16X30-20S Is Used
Small-part ejection on assembly benches
The trimmed 10-30 mm extend stroke and 100.5 N push at 0.5 MPa suit knocking finished electronics or watch components off a nest without disturbing the fixture.
Light clamping of plastic housings
About 60 N of practical force at 0.5 MPa holds small 3D-printed or moulded parts during a drilling or gluing pass, and the 20 mm window lets operators fine-tune clamp travel per part.
Position-verified test fixtures
With the -S magnet fitted, CMSE or DMSE switches confirm extend and retract on a lab test rig, while the compact body fits inside a benchtop guarding frame.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X30-20S with the ACEJ16X30-20S
Size against the neighbours: a 12 mm bore gives 56.5 N push at 0.5 MPa, while stepping up to 20 mm raises it to 157.1 N, so the 16 mm at 100.5 N sits mid-range for light clamping and positioning. The stop screw only shortens the extend stroke and is not a mid-stroke lock - on air loss the piston still drifts, so add a separate valve or lock for load holding. FA/FB flanges and LB feet bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Since this model is discontinued, order the ACEJ16X30 as the current-production replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X30-20S
- ✓ 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 ACPJ16X30-20S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa that rises to 140.7 N push and 105.6 N pull. The theoretical maximum is 20.5 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is M5x0.8 on this 16 mm bore.
The -20 code is a 20 mm window: an external stop screw shortens the 30 mm extend stroke to any value from 10 to 30 mm. It is a mechanical end stop, not a load-holding brake, and fixed TPU bumpers decelerate at both ends. The ACPJ family is discontinued; the current drop-in is the ACEJ16X30 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X30-20S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X30-20S replacement — usually within 7-8 hours.