This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X75-75B, the same code under the new prefix. 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 ACPJ12X75-75B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X75-75B is a double acting, double rod, 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 ACEJ12X75-75B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke75 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X75-75B
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-75B
This ACPJ12X75-75B is a double acting compact cylinder with an adjustable stroke, built on a short DIN-standard body in hard-anodized aluminium with an S45C hard-chrome 6 mm rod. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those rise to 79.2 N and 59.4 N, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. Its 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 where a full-length body cannot.
The -75 code gives a 75 mm adjustment window: an external stop screw trims the extend stroke anywhere from 0 to 75 mm on site, so one cylinder covers several station positions. Note that the 75 mm stroke exceeds the 50 mm standard maximum for a 12 mm bore, so this unit is made to order. As a rule of thumb, budget about 33.9 N (roughly 3.4 kg) of real work at 0.5 MPa rather than the full 56.5 N rating. This model is discontinued; the current-production replacement is the ACEJ12X75, a drop-in successor in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-75B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-75B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X75-75B |
| Bore size | Ø12 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod, 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 ACEJ12X75-75B (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 kgf |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-75B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -75 | 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 (double rod, adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-75B Is Used
Small-parts ejection in assembly stations
The 56.5 N push at 0.5 MPa is enough to kick light plastic or stamped parts off a nest, and the 0-75 mm adjustable window lets one cylinder serve multiple eject positions on the same fixture.
Lab and test-rig positioning
Compact 12 mm bore with a 6 mm male-thread rod fits tight benchtop rigs; the stop screw sets an exact extend position for repeatable sample or probe placement.
Light gating on packaging lines
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, slips beside conveyor frames to stop or divert small cartons at 30-500 mm/s.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X75-75B with the ACEJ12X75-75B
Choose this 12 mm bore when your clamp or eject force sits under about 33.9 N of usable push at 0.5 MPa; step up to the 16 mm bore (100.5 N push at 0.5 MPa) if the load is heavier, or stay at 12 mm to save space on light positioning tasks. The male rod thread (B code) suits knuckle and bracket attachments, and the PT port takes M5x0.8 fittings. If you need position sensing, order the -S variant - without it there is no magnet and no switch can be mounted. The mechanical stop only trims the extend stroke; it is not a mid-stroke lock, so the piston still drifts on air loss. For new designs, specify the ACEJ12X75 instead, as this ACPJ is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X75-75B
- ✓ 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 ACPJ12X75-75B FAQ
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 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, temperature -20 to +70 C, fluid air filtered to 40 um. Port is M5x0.8, rod is 6 mm with male thread, and the -75 code gives a 75 mm extend-stroke adjustment window. Fixed TPU bumpers sit at both ends.
Sensing requires the optional -S magnet code; this unit (no S in the model number) has no magnet, so CMSE or DMSE reed or solid-state switches cannot be fitted to it - order ACPJ12X75-75BS if sensing is needed. The ACPJ family is discontinued; the current-production replacement is the ACEJ12X75, a drop-in successor 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
Request a Quote for the ACEJ12X75-75B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X75-75B replacement — usually within 7-8 hours.