This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X90-30, 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 ACPJ12X90-30
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X90-30 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 ACEJ12X90-30 (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 → ACEJ12X90-30
- 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 ACPJ12X90-30
A double acting compact cylinder with an adjustable extend stroke, the ACPJ12X90-30 uses a 12 mm bore to deliver 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 N push at 0.7 MPa). The -30 code gives a 30 mm adjustment window: a stop screw trims the 90 mm stroke down to as short as 60 mm on site, so one cylinder covers a 60-90 mm working range. Note the 90 mm stroke is beyond the 50 mm standard maximum for bore 12, 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 suits slim jigs and guard-mounted actuators. For sizing, plan on roughly 34 N of usable push at 0.5 MPa (about 0.6 of the rating), which lifts about 2.9 kg vertically with a 2:1 margin. A fixed TPU bumper sits at both ends, the hard-anodized aluminium body carries an S45C hard-chrome rod, and the rod end is female M3x0.5 with an M5x0.8 air port. No magnet is fitted on this version; the optional -S code adds one for CMSE / DMSE switches.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-30 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-30 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X90-30 |
| 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 ACEJ12X90-30 (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 (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 ACPJ12X90-30
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×90 | 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 ACPJ12X90-30 Is Used
Small-part ejection from plastic molds
The 60-90 mm trimmed stroke and 56.5 N push at 0.5 MPa knock lightweight finished parts off a mold or nest without marking them.
Pick-and-place z-axis on benchtop automation
With the optional -S magnet and CMSE / DMSE switches, end positions are confirmed on compact gantries where a full-length cylinder will not fit.
Light hold-down on electronics test fixtures
About 34 N of practical push at 0.5 MPa clamps PCB assemblies against a test jig, and the stop screw dials the exact clamp height in the field.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-30 with the ACEJ12X90-30
At 56.5 N push at 0.5 MPa this 12 mm bore fits light clamping and positioning; step up to the 16 mm bore (100.5 N push at 0.5 MPa) if the load is heavier, or down only for very light indexing. The stop screw shortens the extend stroke only - it never lengthens past 90 mm - and it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. For position feedback order the -S magnet version with CMSE / DMSE switches. Confirm ISO 21287 mounting dimensions before swapping to the ACEJ12X90 replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X90-30
- ✓ 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 ACPJ12X90-30 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; theoretical maximum is 11.5 kgf at 1.0 MPa. The bore is 12 mm with a 6 mm rod, M5x0.8 port, female M3x0.5 rod thread, operating pressure 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and a fixed TPU bumper at both ends. The 90 mm stroke is a made-to-order size above the 50 mm standard maximum for this bore.
The -30 code means a stop screw can shorten the extend stroke by up to 30 mm, giving a usable 60-90 mm range; it cannot extend beyond 90 mm and it does not hold a load on air loss. The ACPJ family is discontinued - the current drop-in is the ACEJ12X90 (same bore, stroke and force class, ISO 21287 mounting), so confirm the ISO 21287 dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X90-30
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X90-30 replacement — usually within 7-8 hours.