This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X80-75B, 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 ACPJ12X80-75B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X80-75B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 80mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X80-75B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke80 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X80-75B
- 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 ACPJ12X80-75B
The ACPJ12X80-75B is a double acting compact cylinder with an adjustable extend stroke, now discontinued. Air drives the piston both ways, and the -75 stop screw trims the 80 mm stroke anywhere down to 5 mm on site, so one cylinder covers a whole family of short-stroke clamping positions. At 0.5 MPa the 12 mm bore delivers 56.5 N push and 42.4 N pull; at 0.7 MPa that rises to 79.2 N push. In practice plan on roughly 34 N of usable work, which lifts about 2.9 kg vertically with a 2:1 margin.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures, small guards and compact pick stations. The hard-anodized aluminium body carries an S45C hard-chrome rod with a male thread (the B code), fixed TPU bumpers sit at both ends, and the port is M5x0.8. Note the 80 mm stroke exceeds the 50 mm standard maximum for this bore, so it is a made-to-order build. For new projects order the current ACEJ12X80, the drop-in successor in the same force class, and confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-75B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-75B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X80-75B |
| Bore size | Ø12 mm |
| Stroke | 80 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 ACEJ12X80-75B (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 ACPJ12X80-75B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×80 | 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 ACPJ12X80-75B Is Used
Micro press fitting of connector pins
The 56.5 N push at 0.5 MPa seats small pins and terminals in electronics assemblies, and the 75 mm window lets one cylinder serve several press depths from 5 mm to 80 mm.
Compact gating on a small conveyor line
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, fits between guard rails where a full-length cylinder cannot, pushing 42.4 N on retract to clear parts.
Slide actuation in a dental burr fixture
The male-threaded 6 mm rod drives a light slide through about 2.9 kg of vertical lift equivalent, with the stop screw set precisely for each burr holder position.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-75B with the ACEJ12X80-75B
At 56.5 N push at 0.5 MPa this 12 mm bore suits light clamps, ejectors and small part presenters. If your load needs more, step up to the 16 mm bore (100.5 N push at 0.5 MPa) or the 20 mm bore (157.1 N push at 0.5 MPa); for lighter duty there is nothing smaller in the family. The stop screw is a mechanical end stop only - it shortens the extend stroke but does not hold a load if air is lost. This unit has a male rod thread and no magnet, so no CMSE / DMSE switch can be fitted; order an -S variant if sensing is needed. It is discontinued: specify ACEJ12X80 and verify the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X80-75B
- ✓ 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 ACPJ12X80-75B FAQ
Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push is 79.2 N and pull 59.4 N; 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. The port is M5x0.8, the rod is 6 mm with a male thread, and the 80 mm stroke is a made-to-order length above the 50 mm standard maximum for this bore.
The -75 code is a 75 mm adjustment window: an external stop screw shortens the extend stroke anywhere from 80 mm down to 5 mm. It is a mechanical end stop, not a load-holding lock, so the piston still drifts if air is lost. Fixed TPU bumpers decelerate at both ends. The model is discontinued; the current-production replacement is ACEJ12X80 (swap the P for an E), a drop-in in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
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Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X80-75B replacement — usually within 7-8 hours.