This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X75-30S, 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 ACPJ12X75-30S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X75-30S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 75mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X75-30S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke75 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X75-30S
- 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 ACPJ12X75-30S
This ACPJ12X75-30S is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 75 mm stroke by up to 30 mm, giving a usable range of 45-75 mm. It is discontinued - the current-production replacement is the ACEJ12X75, so confirm ISO 21287 mounting dimensions before swapping from the DIN-standard ACP footprint. At 0.5 MPa the 12 mm bore pushes 56.5 N and pulls 42.4 N, rising to 79.2 N at 0.7 MPa.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures and guarded cells. Plan on about 34 N (roughly 3 kg lifted vertically with a 2:1 margin) of real work rather than the full 56.5 N rating. The 75 mm stroke exceeds the 50 mm standard maximum for this bore, so it is made to order. The -S code on this model carries the optional magnet, so CMSE / DMSE switches can be mounted for end-of-stroke signalling.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X75-30S |
| Bore size | Ø12 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ12X75-30S (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 (Ø12mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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 ACPJ12X75-30S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×75 | 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 ACPJ12X75-30S Is Used
Small-part ejection from plastic moulds
The 56.5 N push at 0.5 MPa clears lightweight moulded caps and clips off the tool, while the 45-75 mm adjustable range lets the setter dial the ejection length on site.
Presence checking on electronics assembly lines
With the -S magnet fitted, CMSE or DMSE switches confirm board seating in test jigs; the short body fits under low fixture plates where a full-length cylinder cannot.
Light hold-down of PCBs during soldering
About 34 N of practical working force at 0.5 MPa holds thin circuit boards flat on a wave-solder pallet, with the TPU bumper softening each end of the 45-75 mm stroke.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-30S with the ACEJ12X75-30S
At 12 mm bore you get 56.5 N push at 0.5 MPa - enough for light clamping and part detection, but step up to the 16 mm bore (100.5 N) if the load is heavier, or downsize nothing smaller exists in this family. The 30 mm window suits jobs where the final position is tuned on the machine, not on paper. Remember the stop screw is a mechanical end stop for the extend stroke only: on air loss the piston still drifts, so add a separate locking solution if you must hold a load. FA/FB flange and LB foot mountings plus I/Y rod knuckles bolt to the ISO 21287 face. Order the ACEJ12X75 as the drop-in successor.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X75-30S
- ✓ 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 ACPJ12X75-30S FAQ
Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push rises to 79.2 N and pull to 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window, so the extend stroke can be trimmed anywhere between 45 and 75 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed 30-500 mm/s.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with M5x0.8 ports, a 6 mm rod on an M3x0.5 female thread, and FA/FB flange or LB foot mounting. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be fitted. The ACPJ is discontinued - order the ACEJ12X75 as the current drop-in and confirm ISO 21287 mounting dimensions first.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X75-30S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X75-30S replacement — usually within 7-8 hours.