This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X120-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X120-30 in place of this model. 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 ACPJ12X120-30
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X120-30 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X120-30
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30
This compact cylinder is double acting, so air drives the rod out and pulls it back, and the -30 code adds a 30 mm adjustment window: a stop screw trims the 120 mm extend stroke down to 90 mm on site. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. Note the 120 mm stroke exceeds the 50 mm standard limit for bore 12, so this 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 matters in slim fixtures and gantries. For real-world sizing, plan on roughly 34 N (about 60% of rated push) of usable work at 0.5 MPa, enough to lift about 2.8 kg vertically with a 2:1 margin. This ACPJ model is discontinued; the current-production replacement is ACEJ12X120, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X120-30 |
| Bore size | Ø12 mm |
| Stroke | 120 mm |
| Acting type | Double acting, 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 ACEJ12X120-30 (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
The ACEJ12X120-30 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×120 | 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 (adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30 Is Used
Small-part ejection in assembly fixtures
The 56.5 N push at 0.5 MPa clears lightweight plastic or stamped parts off a jig, and the 30 mm adjustment window lets a technician dial the extend stroke between 90 and 120 mm without changing the cylinder.
Lab and test-rig actuation
A 2.8 kg vertical lift capability with margin suits raising small probe heads or sample trays, while the compact short body fits benchtop rigs where a full-length profile cylinder will not.
Light gating on packaging lines
Used as a stop or deflector for small cartons on a conveyor, the 42.4 N pull force retracts the gate reliably, and the fixed TPU bumper at both ends decelerates the rod at each end of travel.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30 with the ACEJ12X120-30
At 12 mm bore this is the smallest force class in the family: 56.5 N push at 0.5 MPa versus 100.5 N for bore 16 and 157.1 N for bore 20. Step up if your load needs more than about 34 N of working force. The 120 mm stroke is non-standard for this bore (max standard 50 mm), so expect a made-to-order unit. FA/FB flange and LB foot mounts bolt to the standard face, and the rod end is female M3x0.5 with M5x0.8 ports. No magnet is fitted here; order the -S code if you later need CMSE / DMSE switch position feedback. For new projects, specify the ACEJ12X120 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X120-30
- ✓ 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 ACPJ12X120-30 FAQ
At 0.5 MPa the 12 mm bore gives 56.5 N push and 42.4 N pull; at 0.7 MPa it gives 79.2 N push and 59.4 N pull, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -30 code is a 30 mm adjustment window: a stop screw shortens the 120 mm extend stroke to as little as 90 mm. It is a mechanical end stop only, not a mid-stroke lock, so the piston still drifts if air is lost. The 120 mm stroke is a made-to-order length since the bore 12 standard maximum is 50 mm.
No, the ACPJ family is discontinued. The current-production drop-in is ACEJ12X120, which matches the same bore, stroke and force class in the ISO 21287 short-body format. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions before swapping. Also note this unit has no magnet fitted; position sensing with CMSE / DMSE switches requires ordering the optional -S magnet code.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X120-30
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X120-30 replacement — usually within 7-8 hours.