This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X45-10, 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 ACPJ12X45-10
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X45-10 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 45mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X45-10 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X45-10
- 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 ACPJ12X45-10
A double acting compact cylinder with adjustable stroke, the ACPJ12X45-10 uses a 12 mm bore to deliver 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N push at 0.7 MPa. A stop screw trims the extend stroke anywhere within the 10 mm window, so the usable range is 35-45 mm. The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body will not fit.
Plan on roughly 34 N of real work at 0.5 MPa (about 60% of the rated push), which corresponds to lifting about 1.7 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod with a fixed TPU bumper at both ends, running 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi). Note this model is discontinued: the current-production drop-in is the ACEJ12X45, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X45-10 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X45-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X45-10 |
| Bore size | Ø12 mm |
| Stroke | 45 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 ACEJ12X45-10 (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 ACPJ12X45-10
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| -10 | 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 ACPJ12X45-10 Is Used
Small-parts ejection from fixtures
The 56.5 N push at 0.5 MPa is enough to kick machined pins or bushings off a locating nest, and the 35-45 mm trimmed stroke keeps the ejector from bottoming out in a shallow die pocket.
Clamping thin sheet in electronics assembly
About 34 N of usable holding force at 0.5 MPa secures PCB carrier plates or thin aluminium brackets during a screwdriving cycle, with the short body fitting inside a compact gantry head.
Lab and test-rig actuation
The 45 mm stroke, trimmed down to 35 mm by the stop screw, suits sample pushers and micro test stations where the M5x0.8 port and 30-500 mm/s speed band match small-bore pneumatic circuits.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X45-10 with the ACEJ12X45-10
At 12 mm bore this is the smallest force class in the family: 56.5 N push at 0.5 MPa. Step up to the 16 mm bore for 100.5 N push or the 20 mm bore for 157.1 N if the load needs more margin. The stop screw is a mechanical end stop for the extend stroke only, not a mid-stroke lock, so the piston still drifts if air is lost. The rod ends in a female M3x0.5 thread and the port is M5x0.8. This unit has no magnet because the -S code was not ordered; specify ACPJ12X45-10S if CMSE / DMSE switches are needed. FA/FB flange and LB foot mounts bolt to the ISO 21287 face. Discontinued - order the ACEJ12X45 as the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X45-10
- ✓ 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 ACPJ12X45-10 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. The -10 code gives a 10 mm adjustment window, so the stop screw trims the 45 mm extend stroke to any length from 35 to 45 mm. It is double acting, runs 30-500 mm/s, and the fixed TPU bumper at each end decelerates the piston at the ends of travel.
No - the ACPJ12X45-10 is discontinued. The current-production replacement is the ACEJ12X45 (swap the P for an E), an ISO 21287 compact cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP was built to a DIN-standard body. If you need position sensing, order the -S version so the optional magnet is fitted for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X45-10
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X45-10 replacement — usually within 7-8 hours.