This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X70-75S, 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 ACPJ12X70-75S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X70-75S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X70-75S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X70-75S
- 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 ACPJ12X70-75S
This compact AirTAC cylinder is double acting, with air driving the rod out and pulling it back, and its -75 code gives a 75 mm adjustment window: an external stop screw trims the 70 mm extend stroke on site, so the usable range is 0-70 mm. 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 ceiling of 11.5 kgf at 1.0 MPa. In practice plan for roughly 34 N (about 0.6 of the push rating) of real work at 0.5 MPa, which lifts about 2.8 kg vertically with a 2:1 margin.
Note that the 70 mm stroke exceeds the 50 mm maximum standard stroke for bore 12, so this unit is made to order. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, the fixed TPU bumper decelerates at both ends, and the fitted -S magnet accepts CMSE / DMSE reed or solid-state switches. This model is discontinued; the current drop-in is ACEJ12X70, so confirm ISO 21287 mounting dimensions before swapping because the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-75S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-75S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X70-75S |
| Bore size | Ø12 mm |
| Stroke | 70 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 ACEJ12X70-75S (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 ACPJ12X70-75S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×70 | 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 ACPJ12X70-75S Is Used
Micro assembly press
A 12 mm bore pushing 56.5 N at 0.5 MPa seats small connectors or labels in electronics fixtures, with the stop screw trimming the extend stroke to a repeatable 0-70 mm window.
Vision inspection slide
The fitted -S magnet drives CMSE or DMSE switches for end-of-stroke confirmation on a compact camera gantry, where the short body fits inside a tight guard.
Lab sample ejector
About 2.8 kg of vertical lift capability with a 2:1 margin clears sample vials from a tray in a compact analytical instrument, using the M3x0.5 female rod thread for tooling.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X70-75S with the ACEJ12X70-75S
For a 70 mm stroke at this force level, 12 mm gives 56.5 N push at 0.5 MPa; step up to bore 16 (100.5 N) if the load is heavier, or down only for very light positioning. The adjuster is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the piston still drifts on air loss. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet pairs with CMSE / DMSE switches. Since ACPJ is discontinued, order ACEJ12X70 as the current-production equivalent and verify the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X70-75S
- ✓ 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 ACPJ12X70-75S 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; theoretical maximum is 11.5 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C. The 70 mm stroke is non-standard for bore 12 (max standard 50 mm), so it is made to order.
The -75 code is a 75 mm adjustment window: an external stop screw shortens the extend stroke on site anywhere from 0 to 70 mm, and a fixed TPU bumper decelerates at both ends. The stop is not a load-holding brake. This ACPJ is discontinued; the current drop-in is ACEJ12X70 (same bore, stroke and force class), and you should confirm ISO 21287 mounting dimensions before swapping since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X70-75S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X70-75S replacement — usually within 7-8 hours.