This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X40-10SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X40-10SB 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 ACPJ12X40-10SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X40-10SB is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 40mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X40-10SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X40-10SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X40-10SB
This is a double acting, adjustable-stroke compact cylinder in the discontinued AirTAC ACPJ series. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 N / 59.4 N at 0.7 MPa), and the -10 code gives a 10 mm trim window: an external stop screw shortens the 40 mm extend stroke on site, so the usable range is 30-40 mm. The B code specifies a male rod thread on the 6 mm rod, and the S code means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted directly on the hard-anodized aluminium body.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarded assemblies. A fixed TPU bumper sits at both ends, speed runs 30-500 mm/s, and pressure spans 0.15-1.0 MPa (22-145 psi). For sizing, plan on roughly 34 N of real work at 0.5 MPa (about 60% of the rated push), which corresponds to lifting about 3 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production replacement is ACEJ12X40, and buyers should confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X40-10SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X40-10SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X40-10SB |
| Bore size | Ø12 mm |
| Stroke | 40 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 ACEJ12X40-10SB (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 ACEJ12X40-10SB 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 ACPJ12X40-10SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -10 | 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 ACPJ12X40-10SB Is Used
Small-part ejection from plastic molds
The 56.5 N push at 0.5 MPa is enough to tip lightweight molded caps or clips off a core pin, and the 10 mm trim window lets the operator fine-tune the 40 mm stroke so parts clear the fixture without overtravel.
Position-checked gate on a benchtop tester
Because the -S magnet is fitted, a CMSE switch on the 12 mm body confirms the gated fixture is fully retracted before a test cycle starts, at speeds from 30-500 mm/s.
Light clamping in an electronics assembly jig
About 3 kg of vertical lift capability with a 2:1 margin covers holding PCBs or connector housings down during a screwdriving step, and the male rod thread accepts a knuckle for the clamp tip.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X40-10SB with the ACEJ12X40-10SB
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 the 16 mm bore and 157.1 N for the 20 mm bore. Step up if your part weight or friction load exceeds the roughly 34 N usable figure at 0.5 MPa. The 40 mm stroke sits inside the 50 mm maximum standard stroke for this bore, so no made-to-order length is needed. The 10 mm adjust window trims the extend stroke only - it is a mechanical end stop, not a mid-stroke lock, so the piston will still drift if air is lost. Match FA/FB flange or LB foot mounts and I/Y rod knuckles to the mounting face, and remember the magnet here is the optional -S code carried by this unit. For new designs, order the ACEJ12X40 instead, as ACPJ is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X40-10SB
- ✓ 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 ACPJ12X40-10SB 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, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -10 code gives a 10 mm adjustment window: the external stop screw shortens the 40 mm extend stroke, so the usable range is 30-40 mm. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), with a 1.5 MPa (215 psi) proof pressure, and the M5x0.8 port depends only on the 12 mm bore.
No - the ACPJ series is discontinued. The current-production drop-in is the ACEJ12X40, which swaps the P for an E and matches the same bore, stroke and force class in the ISO 21287 short-body format. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. This unit carries the optional -S magnet for CMSE / DMSE switches, has a male rod thread on the 6 mm rod, and uses fixed TPU bumpers at both ends.
Related AirTAC ACE Cylinders
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