This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X75-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X75-40S 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 ACPJ12X75-40S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 75mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X75-40S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke75 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X75-40S
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40S
This discontinued AirTAC ACPJ12X75-40S is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 75 mm stroke by up to 40 mm, giving a usable 35-75 mm range. 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. Because the 75 mm stroke exceeds the 50 mm standard limit for bore 12, 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, so it slots into cramped jigs and guarding.
The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted for end-of-stroke sensing. A fixed TPU bumper sits at both ends, and the hard-anodized aluminium body carries an S45C hard-chrome rod with a female M3x0.5 thread. For planning, treat about 34 N (roughly 0.6 of the push force) as the realistic working output at 0.5 MPa, which lifts around 3 kg vertically - halve that for a 2:1 margin on a real part. Since ACPJ is out of production, the current drop-in is ACEJ12X75; confirm ISO 21287 mounting dimensions before swapping, as ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X75-40S |
| Bore size | Ø12 mm |
| Stroke | 75 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 ACEJ12X75-40S (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 ACEJ12X75-40S 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 ACPJ12X75-40S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -40 | 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 ACPJ12X75-40S Is Used
Micro ejection on PCB test rigs
The 56.5 N push at 0.5 MPa is enough to eject small populated test fixtures, and the 35-75 mm trim range lets technicians tune the eject depth per board type without changing hardware.
Position-verified slide gate in a compact lab feeder
With the -S magnet fitted, CMSE or DMSE switches confirm open and closed positions, while the short body fits where a full-length profile cylinder cannot.
Sample press in an analytical autosampler
About 34 N of realistic working force at 0.5 MPa presses vials or sample trays gently; the female M3x0.5 rod thread accepts small knuckles for light tooling.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40S with the ACEJ12X75-40S
Size both ways: if 56.5 N push at 0.5 MPa is marginal, step up to bore 16 for 100.5 N; if the load is under about 30 N, the smaller bore 12 fixed-stroke ACP may cost less. The 40 mm window suits stations where the extend stroke is tuned on site, but remember the stop screw is a mechanical end stop, not a mid-stroke lock - on air loss the piston still drifts, so do not rely on it to hold a load. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet pairs with CMSE / DMSE switches. Order ACEJ12X75 as the current-production replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X75-40S
- ✓ 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 ACPJ12X75-40S FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa that rises to 79.2 N push and 59.4 N pull, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The -40 code gives a 40 mm adjustment window, so the 75 mm extend stroke can be trimmed anywhere from 35 to 75 mm with the stop screw. 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. The 75 mm stroke is non-standard for bore 12 (standard max is 50 mm), so it is made to order.
No - the ACPJ family is discontinued and is not held as current stock. The drop-in successor is ACEJ12X75 (swap the P for an E), which matches the same 12 mm bore, 75 mm stroke and force class in the ISO 21287 short-body format. Because ACP is DIN-standard, confirm the ISO 21287 mounting dimensions and port positions before swapping. This unit carries the optional -S magnet for CMSE / DMSE switches, a fixed TPU bumper at both ends, and FA/FB flange or LB foot mounting options.
Related AirTAC ACE Cylinders
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