This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X90-75B, 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 ACPJ12X90-75B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X90-75B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 90mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X90-75B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke90 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X90-75B
- 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 ACPJ12X90-75B
Double acting with an adjustable stroke, the ACPJ12X90-75B runs on a 12 mm bore and delivers 56.5 N of push force and 42.4 N of pull force at 0.5 MPa (79.2 N / 59.4 N at 0.7 MPa). The -75 code sets a 75 mm adjustment window: a stop screw trims the extend stroke anywhere from 15 mm up to the full 90 mm, so one cylinder covers several fixture positions. The 90 mm stroke is beyond the 50 mm standard maximum for this bore, so it is a made-to-order build. This model is discontinued; the current-production replacement is the ACEJ12X90.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim jigs and guarding where a full-length body cannot. A hard-anodized aluminium body carries an S45C hard-chrome rod, with a fixed TPU bumper at each end and speeds of 30-500 mm/s. In practice, plan on roughly 34 N of usable push at 0.5 MPa (about 60% of the rating), which lifts around 2.9 kg vertically with a 2:1 margin. Note: no magnet is fitted on this version, so position switches cannot be mounted unless the optional -S code is ordered.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-75B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-75B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X90-75B |
| Bore size | Ø12 mm |
| Stroke | 90 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 ACEJ12X90-75B (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 ACPJ12X90-75B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×90 | Stroke length in mm. |
| -75 | 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 ACPJ12X90-75B Is Used
Small-part ejection from plastic molds
The 15-90 mm trim range lets one cylinder serve multiple mold sizes; 56.5 N at 0.5 MPa is enough to kick lightweight sprues and finished caps off the ejector side.
Indexing stop on a compact rotary table
Tune the extend stroke with the stop screw so the pin engages the same index depth every cycle; the male rod thread accepts a knuckle for the pivoting pin.
Sample pusher in a lab analysis module
The short body fits inside benchtop analyzer enclosures, and the 2.9 kg vertical-lift margin covers moving sample trays of a few hundred grams with headroom.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-75B with the ACEJ12X90-75B
At 56.5 N push at 0.5 MPa, this 12 mm bore suits light clamping and part-presenting duty; step down is not available in this family, while the 16 mm bore gives 100.5 N push at 0.5 MPa if you need nearly double the force. The male rod thread (B code) pairs with I/Y knuckles for linkages. The adjuster is a mechanical end stop for the extend stroke only - it does not lock the piston if air is lost, so add a separate holding valve for suspended loads. For new designs, order the ACEJ12X90 instead and confirm the ISO 21287 mounting dimensions before swapping, since the ACPJ follows a DIN-standard footprint.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X90-75B
- ✓ 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 ACPJ12X90-75B FAQ
Push is 56.5 N and pull is 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 -75 code gives a 75 mm adjustment window, so the extend stroke can be trimmed anywhere between 15 mm and the full 90 mm. The 90 mm stroke is a made-to-order length because the standard maximum for a 12 mm bore is 50 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
Only if the optional -S magnet code was ordered - this version has no magnet, so CMSE or DMSE switches cannot be fitted as-is. The ACPJ family is discontinued; the current drop-in is the ACEJ12X90 (same bore, stroke and force class, ISO 21287 body). Confirm the ISO 21287 mounting dimensions against your fixture before swapping, because the ACPJ was built to a DIN-standard footprint. FA/FB flange and LB foot mounts remain available on the replacement.
Related AirTAC ACE Cylinders
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