This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X90-75S, 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 ACPJ12X90-75S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X90-75S 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 ACEJ12X90-75S (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 → ACEJ12X90-75S
- 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 ACPJ12X90-75S
This ACPJ12X90-75S is a double acting compact cylinder with an adjustable extend stroke: the -75 stop screw trims the 90 mm stroke down to as little as 15 mm on site. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 / 59.4 N at 0.7 MPa), with a theoretical peak of 11.5 kgf at 1.0 MPa. Note that the 90 mm stroke exceeds the 50 mm maximum standard stroke for this bore, so it is a made-to-order build.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits cramped jigs and guarding. As a rule of thumb, plan for roughly 34 N (about 3.4 kg of vertical lift) of usable work at 0.5 MPa rather than the full 56.5 N rating. The fitted -S magnet accepts CMSE / DMSE switches, and the current-production replacement is the ACEJ12X90 - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-75S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-75S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X90-75S |
| 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 ACEJ12X90-75S (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 ACPJ12X90-75S
| 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 ACPJ12X90-75S Is Used
Small-part ejection from fixtures
The 56.5 N push at 0.5 MPa is enough to strip light aluminium or plastic parts off a locating pin, and the 15-90 mm adjustable range lets you dial in the ejection travel.
Position-verified test stations
With the -S magnet fitted, CMSE or DMSE switches confirm the rod is fully home in a benchtop leak or assembly check, at speeds of 30-500 mm/s.
Clamping inside compact guarding
The short body, roughly half the length of an ISO 15552 profile cylinder, fits low-profile clamping posts on electronics assembly jigs where space is tight.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-75S with the ACEJ12X90-75S
At 12 mm bore this is the smallest force class in the range: 56.5 N push at 0.5 MPa. If your load needs more, step up to the 16 mm bore (100.5 N push at 0.5 MPa) or the 20 mm bore (157.1 N). The 75 mm adjustment window covers jobs where the final position is tuned during commissioning; remember the stop screw only shortens the extend stroke and is not a mid-stroke lock - on air loss the piston still drifts. FA/FB flange and LB foot mountings bolt straight to the face. This model is discontinued; order the ACEJ12X90 as the drop-in successor.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X90-75S
- ✓ 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 ACPJ12X90-75S FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa it pushes 79.2 N and pulls 59.4 N, with a theoretical maximum of 11.5 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, temperature -20 to +70 C, air filtered to 40 um. Port is M5x0.8, rod thread is female M3x0.5, and the 90 mm stroke is a made-to-order length above the 50 mm standard maximum for this bore.
The -75 code sets a 75 mm adjustment window: an external stop screw shortens the extend stroke anywhere between 15 and 90 mm. It is a mechanical end stop only - it never holds a load if air is lost. The ACPJ family is discontinued; the current-production replacement is the ACEJ12X90 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before converting your fixture.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X90-75S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X90-75S replacement — usually within 7-8 hours.