This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X70-30, 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 ACPJ16X70-30
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X70-30 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X70-30 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X70-30
- 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 ACPJ16X70-30
The ACPJ16X70-30 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 70 mm stroke down by up to 30 mm, giving a usable 40-70 mm range set on site. It is discontinued - the current-production replacement is the ACEJ16X70, an ISO 21287 direct in the same bore, stroke and force class. At 0.5 MPa this bore pushes 100.5 N and pulls 75.4 N, so plan on roughly 60 N (about 6 kg) of real work rather than the full rating.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarding where a full-length body cannot fit. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers at both ends, and an M5x0.8 port. FA/FB flanges and LB feet bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches - without it no magnet is fitted.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X70-30 |
| Bore size | Ø16 mm |
| Stroke | 70 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 ACEJ16X70-30 (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 ACPJ16X70-30
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | 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 ACPJ16X70-30 Is Used
Slide indexing on compact assemblies
The 40-70 mm adjustable range positions light carrier slides on packaging and lab machines where a full-length body will not fit.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X70-30 with the ACEJ16X70-30
The 70 mm stroke is within the 75 mm standard for this bore. Remember the -30 adjuster is a mechanical end stop for the extend stroke only; on air loss the piston still drifts, so it is not a load-holding lock. If you need position sensing, order the -S version so CMSE / DMSE switches can be used. For new builds, specify the ACEJ16X70 and confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X70-30
- ✓ 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 ACPJ16X70-30 FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa push rises to 140.7 N and pull to 105.6 N. 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. The -30 stop screw shortens the 70 mm extend stroke by up to 30 mm.
The external stop screw on the head shortens the extend stroke within the ordered 30 mm window, so the effective range is 40-70 mm; it cannot lengthen the stroke past 70 mm. It is a mechanical end stop, not a mid-stroke lock. Position sensing requires the optional -S magnet ordered with the cylinder - without it no magnet is fitted and no CMSE / DMSE switch can be mounted. This model is discontinued; the ACEJ16X70 is the current ISO 21287 direct.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X70-30
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X70-30 replacement — usually within 7-8 hours.