This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X90-30S, 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 ACPJ12X90-30S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X90-30S 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 ACEJ12X90-30S (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 → ACEJ12X90-30S
- 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 ACPJ12X90-30S
Double acting and adjustable in stroke, the ACPJ12X90-30S is a discontinued DIN-standard compact cylinder with a 12 mm bore and a 90 mm stroke that a stop screw can trim by up to 30 mm, giving a usable extend range of 60-90 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those figures rise to 79.2 N and 59.4 N. Because only about 60% of the push force should be counted as real work, plan on roughly 34 N, which lifts about 3 kg vertically - halve that for a 2:1 margin and match parts under 1.5 kg.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. Note that the 90 mm stroke is non-standard for this bore (the catalogue maximum is 50 mm), so it is made to order. This model is discontinued; the current-production replacement is the ACEJ12X90, and buyers should confirm ISO 21287 mounting dimensions before swapping. The -S magnet is fitted, so CMSE or DMSE switches can be added for end-of-stroke sensing.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X90-30S |
| 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 ACEJ12X90-30S (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 ACPJ12X90-30S
| 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 ACPJ12X90-30S Is Used
Micro part ejection from fixtures
The trimmed 60-90 mm extend range and 56.5 N push at 0.5 MPa suit ejecting small machined or moulded parts off a locating pin in a compact jig.
Positioned clamping in test rigs
With the -S magnet fitted, CMSE or DMSE switches signal end of stroke, letting an electronics test bench confirm the 12 mm bore head has reached its set position.
Light press-fit in assembly cells
Around 34 N of usable force at 0.5 MPa is enough to seat small connectors, bearings or labels where a heavier 16 mm bore (100.5 N) would over-press.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X90-30S with the ACEJ12X90-30S
Size both ways: if 56.5 N of push at 0.5 MPa is more than the job needs, the smaller bore in this family is already the minimum; if the load needs more, step up to the 16 mm bore for 100.5 N at the same pressure. The stop screw only shortens the extend stroke and is not a mid-stroke lock - on air loss the piston still drifts, so do not use it to hold a load. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACEJ12X90 as the current drop-in replacement and verify the ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X90-30S
- ✓ 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 ACPJ12X90-30S 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; the theoretical maximum is 11.5 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window, so the 90 mm extend stroke can be trimmed anywhere down to 60 mm. The 90 mm stroke is non-standard for this bore (catalogue maximum 50 mm) and is made to order. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
The short ISO 21287-class body in hard-anodized aluminium with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder. A fixed TPU bumper sits at both ends and simply decelerates the piston - it never locks or brakes a load. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted. The model is discontinued; order the ACEJ12X90 replacement and confirm ISO 21287 mounting dimensions before the swap.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X90-30S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X90-30S replacement — usually within 7-8 hours.