This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X45-30SB, 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 ACPJ12X45-30SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X45-30SB 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 ACEJ12X45-30SB (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 → ACEJ12X45-30SB
- 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 ACPJ12X45-30SB
The ACPJ12X45-30SB is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 45 mm stroke by up to 30 mm, giving a usable range of 15-45 mm on site. Air at 0.5 MPa delivers 56.5 N on extend and 42.4 N on retract, rising to 79.2 N at 0.7 MPa, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. The hard-anodized aluminium body keeps the mounting length roughly 50% shorter than an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit.
This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be fitted for end-of-stroke sensing, and the B code gives a male rod thread on the 6 mm rod. Plan on about 34 N (roughly 3 kg lifted vertically with a 2:1 margin) as the practical working force at 0.5 MPa rather than the full 56.5 N rating. Note that the ACPJ family is discontinued: the current-production drop-in is the ACEJ12X45 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping, since the ACP follows the DIN standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X45-30SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X45-30SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X45-30SB |
| 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 ACEJ12X45-30SB (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 ACPJ12X45-30SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| -30 | 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 ACPJ12X45-30SB Is Used
Small-part ejection from plastic molds
The 56.5 N extend force at 0.5 MPa is enough to push light molded caps off a core pin, and the 15-45 mm adjustable range lets the molder trim the eject position without changing the cylinder.
Position-flagged slide on an assembly bench
With the fitted -S magnet, CMSE or DMSE switches confirm both end positions of the 45 mm stroke, and the short body fits under a bench-top guard where space is minimal.
Light clamping of PCB fixtures
About 34 N of practical working force at 0.5 MPa holds a small circuit board against a locating stop during a screw-driving or test step, with the stop screw set to the exact clamp height.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X45-30SB with the ACEJ12X45-30SB
At 12 mm bore this is the smallest force class in the range: 56.5 N push at 0.5 MPa. Step up to the 16 mm bore for 100.5 N push, or down is not available since 12 mm is the base size. The 45 mm stroke sits inside the 50 mm maximum standard stroke for this bore, so no made-to-order stroke is needed. The 30 mm adjustment window suits fixtures where the final extend position is tuned during commissioning; remember the stop only shortens the extend stroke and does not hold a load if air is lost. Mounting options are FA/FB flange or LB foot, and the male rod thread (B) pairs with I/Y knuckles. Order the ACEJ12X45 as the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X45-30SB
- ✓ 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 ACPJ12X45-30SB 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 -30 code gives a 30 mm adjustment window, so the 45 mm extend stroke can be trimmed to anywhere between 15 and 45 mm with the stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and a fixed TPU bumper sits at both ends.
No - the ACPJ is discontinued. The current-production replacement is the ACEJ12X45 (swap the P for an E), a drop-in in the same bore, stroke and force class; confirm ISO 21287 mounting dimensions before swapping because the ACP follows the DIN standard. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, the M5x0.8 ports suit small manifolds, and this unit carries the optional -S magnet so CMSE / DMSE switches can be added.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X45-30SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X45-30SB replacement — usually within 7-8 hours.