This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X30-20SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X30-20SB 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 ACPJ12X30-20SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20SB is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 30mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X30-20SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X30-20SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20SB
The ACPJ12X30-20SB is a double acting, adjustable-stroke compact cylinder in the discontinued ACPJ family, with a 12 mm bore and a 30 mm stroke that an external stop screw can trim by up to 20 mm, giving a usable extend range of 10-30 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N at 0.7 MPa, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim jigs and guarding where a full-length body will not fit.
The -S code on this model means the optional magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the body for end-of-stroke sensing; the B code gives a male rod thread on the 6 mm rod. Applying the usual 0.6 factor to the 56.5 N push leaves about 34 N of practical working force, which corresponds to lifting roughly 3 kg vertically - halve that to about 1.5 kg if you want a 2:1 margin. This model is discontinued: the current-production drop-in is the ACEJ12X30, so confirm the ISO 21287 mounting dimensions before swapping, since the ACPJ follows the older DIN-standard footprint.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X30-20SB |
| Bore size | Ø12 mm |
| Stroke | 30 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 ACEJ12X30-20SB (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 ACEJ12X30-20SB 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 ACPJ12X30-20SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -20 | 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 ACPJ12X30-20SB Is Used
Small-part ejection from plastic molds
The 34 N practical push at 0.5 MPa is enough to tip light molded caps or clips off a core pin, and the 10-30 mm trimmed stroke matches shallow die pockets.
Position-verified test fixtures
With the fitted -S magnet driving CMSE or DMSE switches, an electronics bench fixture can confirm the 6 mm rod has fully reached the trimmed extend position before a probe cycles.
Label or stamp head on a packaging line
A 12 mm bore pressing a date-code stamp needs only a few newtons; the short body fits inside a compact print head carriage where an ISO 15552 profile cylinder would be twice as long.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20SB with the ACEJ12X30-20SB
Size in both directions: if 56.5 N at 0.5 MPa is marginal for your load, step up to the 16 mm bore for 100.5 N; if the load is a few newtons, the same 12 mm bore in a shorter fixed-stroke ACP may be enough. Remember the stop screw only shortens the extend stroke within the 20 mm window - it never lengthens it past 30 mm and it is not a mid-stroke lock, so the rod will still drift if air is lost. Mounting is FA/FB flange or LB foot, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACEJ12X30 as the current replacement and verify the ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X30-20SB
- ✓ 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 ACPJ12X30-20SB FAQ
It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum 11.5 kgf at 1.0 MPa. The -20 stop screw trims the 30 mm extend stroke anywhere down to 10 mm, and a fixed TPU bumper decelerates the rod at both ends.
No - the ACPJ family is discontinued. The current-production drop-in is the ACEJ12X30 (swap the P for an E), which matches the same 12 mm bore, 30 mm stroke and force class in the ISO 21287 short-body format. Because the ACPJ follows the older DIN-standard footprint, confirm the ISO 21287 mounting dimensions before swapping. This unit carries the optional -S magnet, so CMSE / DMSE switches work on it; the ACEJ equivalent needs the -S code to include the magnet.
Related AirTAC ACE Cylinders
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