This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X120-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X120-30S 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 ACPJ12X120-30S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30S 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 ACEJ12X120-30S (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 → ACEJ12X120-30S
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30S
This ACPJ12X120-30S is a double acting, adjustable-stroke compact cylinder in the DIN-standard ACPJ family, now discontinued. Air drives the rod both ways, and the -30 stop screw trims the extend stroke anywhere in a 30 mm window, so the working range is 90-120 mm. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N push at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. The 120 mm stroke exceeds the 50 mm standard maximum for this bore, so it is a made-to-order build.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures, sliding doors and pick stations a full-length body cannot reach. Because the -S magnet is fitted on this unit, CMSE or DMSE reed and solid-state switches can be clipped on for end-of-travel sensing. As a working rule, budget about 34 N (roughly 3 kg lifted vertically with a 2:1 margin) of the 0.5 MPa push for real work. For new projects, order the current-production ACEJ12X120, which matches this bore, stroke and force class - just confirm the ISO 21287 mounting dimensions before swapping, since the ACPJ is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X120-30S |
| 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 ACEJ12X120-30S (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 | 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 ACEJ12X120-30S 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 ACPJ12X120-30S
| 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 ACPJ12X120-30S Is Used
Semiconductor tray gate
The 90-120 mm adjustable range and 56.5 N push at 0.5 MPa open and close light wafer-tray gates inside cramped machine frames where a full-length body will not fit.
Lab sample presenter
With the fitted -S magnet and CMSE or DMSE switches, the 120 mm stroke indexes sample vials between microscope and analyzer stations at 30-500 mm/s with end-of-travel confirmation.
Electronics fixture ejector
The 42.4 N pull at 0.5 MPa through the M3x0.5 female rod thread lifts small PCBs clear of test nests, and the 30 mm window lets technicians fine-trim the extend stroke on the line.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X120-30S with the ACEJ12X120-30S
At 12 mm bore this is the smallest ACPJ size: 56.5 N push at 0.5 MPa suits light clamps, gates and part presenters. Step up to the 16 mm bore for 100.5 N push or the 20 mm bore for 157.1 N at the same pressure if the load grows. Note the stop screw shortens the extend stroke only - it is not a mid-stroke lock, so on air loss the piston still drifts and a separate holding method is needed for suspended loads. FA/FB flange and LB foot mounts plus I/Y rod knuckles bolt to the standard face, and the female M3x0.5 rod thread takes standard tooling. The -S magnet on this model enables CMSE / DMSE switches. For new builds specify the ACEJ12X120 replacement and verify ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X120-30S
- ✓ 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 ACPJ12X120-30S 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; the theoretical maximum is 11.5 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, and the -30 stop screw trims the extend stroke by up to 30 mm for a 90-120 mm working range. Plan on about 34 N of the 0.5 MPa push for real work, roughly 3 kg lifted vertically with a 2:1 margin.
An external stop screw shortens the extend stroke on site within the ordered 30 mm window - it cannot lengthen the stroke past the ordered 120 mm. Fixed TPU bumpers at both ends absorb end-of-travel impact, but the stop is a mechanical end stop, not a load-holding brake. The -S magnet fitted on this model accepts CMSE / DMSE reed or solid-state switches for position feedback. This model is discontinued; the current-production drop-in is the ACEJ12X120, so confirm ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
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