This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ16X40-30, 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 ACPJ16X40-30
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ16X40-30 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø16mm bore and 40mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ16X40-30 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ16 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM4×0.7
- StatusDiscontinued → ACEJ16X40-30
- 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 ACPJ16X40-30
The ACPJ16X40-30 is a double acting compact cylinder with an adjustable stroke: an external stop screw trims the 40 mm extend stroke by up to 30 mm, giving a usable range of 10-40 mm.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped jigs and guarding where a full-length body will not reach. A fixed TPU bumper sits at both ends, the hard-anodized aluminium barrel carries an S45C hard-chrome rod with a female M4x0.7 thread, and the M5x0.8 ports take air filtered to 40 um at 0.15-1.0 MPa (22-145 psi). Note that this model is discontinued: the current-production direct is the ACEJ16X40, so confirm ISO 21287 mounting dimensions before you swap.
Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-30 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-30 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ16X40-30 |
| Bore size | Ø16 mm |
| Stroke | 40 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 ACEJ16X40-30 (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 ACPJ16X40-30
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 ACPJ16X40-30 Is Used
Indexing stop on an assembly conveyor
The 10-40 mm adjustable range lets a line technician fine-tune the stop position for different carton heights without changing the cylinder.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ16X40-30 with the ACEJ16X40-30
The -30 window suits jobs where the final position is tuned on the machine, but remember the stop screw only shortens the extend stroke and does not hold a load if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and if you need position feedback you must order the -S variant with the optional magnet for CMSE / DMSE switches - this non-S code has no magnet. For new designs, specify the ACEJ16X40 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ16X40-30
- ✓ 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 ACPJ16X40-30 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 -30 code means the stop screw shortens the 40 mm extend stroke by up to 30 mm, so the working range is 10-40 mm. Speed is 30-500 mm/s and operating pressure 0.15-1.0 MPa (22-145 psi).
The ACPJ16X40-30 is no longer in production; the current direct is the ACEJ16X40 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows the older DIN-standard footprint. For position sensing, order the -S code to get the optional magnet, which then accepts CMSE / DMSE switches; without -S there is no magnet in the piston.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ16X40-30
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ16X40-30 replacement — usually within 7-8 hours.