This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X70-30B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X70-30B 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 ACPJ12X70-30B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30B is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X70-30B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X70-30B
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30B
The ACPJ12X70-30B is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 70 mm stroke by up to 30 mm, giving a usable range of 40-70 mm. At 0.5 MPa the 12 mm bore delivers 56.5 N push and 42.4 N pull, rising to 79.2 N push at 0.7 MPa. Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures a full-length body cannot reach. Note the 70 mm stroke exceeds the 50 mm standard maximum for bore 12, so it is made to order.
Practical sizing: plan on roughly 34 N of real work at 0.5 MPa (about 60% of the push rating), which is roughly 3 kg of vertical lift with a 2:1 margin. The rod carries a male thread (the B code) and the ports are M5x0.8. A fixed TPU bumper sits at both ends. This model is discontinued; the current-production replacement is the ACEJ12X70 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X70-30B |
| Bore size | Ø12 mm |
| Stroke | 70 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 ACEJ12X70-30B (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 ACEJ12X70-30B 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 ACPJ12X70-30B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×70 | 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 ACPJ12X70-30B Is Used
Micro part ejection from stamping dies
The 56.5 N push at 0.5 MPa is enough to strip small pressed terminals or pins out of a die, and the 40-70 mm adjustable range lets you tune the eject point without re-plumbing.
Lab sample pusher in compact analysers
A 6 mm male-thread rod with a knuckle drives sample trays into a test station; the short body fits inside instrument housings where a profile cylinder will not.
Small carton flap tuck on a packing line
Running at 30-500 mm/s, the cylinder folds light cardboard flaps at up to 79.2 N push at 0.7 MPa, with the stop screw set so the flap is pressed, not crushed.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-30B with the ACEJ12X70-30B
For light clamping and positioning in cramped spaces, this 12 mm bore suits loads in the 30-55 N band at 0.5 MPa. If you need more muscle, the 16 mm bore gives 100.5 N push at 0.5 MPa; if your load is under about 35 N, the same family in a smaller frame may suffice - confirm from datasheet. The 30 mm adjustment window only shortens the extend stroke; it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts on air loss. FA/FB flange and LB foot mountings bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches - this unit has no magnet fitted. Order the ACEJ12X70 as the current drop-in.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X70-30B
- ✓ 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 ACPJ12X70-30B FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those rise to 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), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the fluid must be air filtered to 40 um. The 70 mm stroke is a made-to-order length because the bore 12 standard maximum is 50 mm.
The -30 code sets a 30 mm adjustment window: an external stop screw shortens the extend stroke anywhere between 40 and 70 mm. It is a mechanical end stop only - it never holds a load if air is lost. This ACPJ model is discontinued; the current-production replacement is the ACEJ12X70 (swap the P for an E), a drop-in in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, and remember the magnet is the optional -S code - without it no CMSE / DMSE switch can be fitted.
Related AirTAC ACE Cylinders
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