This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X75-40SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X75-40SB 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 ACPJ12X75-40SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40SB 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 ACEJ12X75-40SB (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 → ACEJ12X75-40SB
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40SB
This AirTAC ACPJ12X75-40SB 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 range of 35-75 mm. 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), with a theoretical maximum of 11.5 kgf at 1.0 MPa. The 75 mm stroke exceeds the 50 mm standard maximum for bore 12, so it is a made-to-order stroke. Note: this model is discontinued; the current-production replacement is ACEJ12X75, so confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. The -S magnet is fitted on this model, so CMSE / DMSE reed or solid-state switches can be mounted for end-of-stroke detection. A practical sizing rule: at 0.5 MPa about 34 N (roughly 3.4 kgf) is realistic working force, which lifts about 1.7 kg vertically with a 2:1 margin. The male rod thread (B code) suits knuckle brackets, and FA/FB flange or LB foot mounts bolt to the standard face.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X75-40SB |
| 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 ACEJ12X75-40SB (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 ACEJ12X75-40SB 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 ACPJ12X75-40SB
| 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 ACPJ12X75-40SB Is Used
Small-part ejection from fixtures
The 35-75 mm adjustable range lets a jig builder trim the push-off stroke to clear a machined part from a nest, with 56.5 N at 0.5 MPa enough for light aluminium or plastic components.
Position-verified clamping on test rigs
With the -S magnet fitted, CMSE or DMSE switches confirm the trimmed extend position on an electronics test bench, while the male rod thread picks up a small knuckle for a swing clamp.
Compact dosing head on lab equipment
The short body, about 50% shorter than an ISO 15552 profile cylinder, fits inside a benchtop analyser housing, and about 3.4 kgf of usable force presses a micro-dosing plunger at 30-500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-40SB with the ACEJ12X75-40SB
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, bore 12 at this size is already generous. Remember the stop screw only shortens the extend stroke and is not a mid-stroke lock - on air loss the piston still drifts, so do not rely on it to hold a load. Match FA/FB flange or LB foot mounting to the fixture, and order the -S code (fitted here) whenever CMSE / DMSE position sensing is needed. For new designs, specify the ACEJ12X75 instead, as this ACPJ is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X75-40SB
- ✓ 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 ACPJ12X75-40SB FAQ
At 0.5 MPa the 12 mm bore 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. Operating pressure is 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, fluid air filtered to 40 um, port M5x0.8, rod 6 mm with male thread, and a fixed TPU bumper at both ends. The 75 mm stroke is non-standard for bore 12 (50 mm max standard) and is made to order.
The -40 code is a 40 mm adjustment window: an external stop screw shortens the extend stroke anywhere within it, so the 75 mm stroke can be set from 35 to 75 mm on site. It cannot lengthen the stroke past 75 mm, and the stop is not a load-holding brake - the piston still drifts if air is lost. The ACPJ family is discontinued; the current-production drop-in is the ACEJ12X75 (swap the P for an E) in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, because the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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