This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X150-50SB, 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 ACPJ12X150-50SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X150-50SB is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X150-50SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke150 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X150-50SB
- 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 ACPJ12X150-50SB
A double acting compact cylinder with an adjustable extend stroke, the ACPJ12X150-50SB carries a 12 mm bore and a 150 mm made-to-order stroke (the standard maximum for this bore is 50 mm). Its -50 code gives a 50 mm stop-screw window, so the extend stroke can be trimmed anywhere between 100 and 150 mm on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa that rises to 79.2 N push and 59.4 N pull, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. The male-threaded 6 mm rod (B code) and M5x0.8 ports suit small clamping and positioning heads.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim jigs and guarding where a full-length body cannot. Because roughly 0.6 of the push force is a realistic working figure, plan on about 34 N of real work at 0.5 MPa - about 3.5 kgf - and expect around 2.9 kg of vertical lift with a 2:1 margin. The -S magnet this model carries accepts CMSE / DMSE switches for end-of-stroke sensing. Note: the ACPJ family is discontinued; the current-production drop-in is ACEJ12X150, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-50SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-50SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X150-50SB |
| Bore size | Ø12 mm |
| Stroke | 150 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 ACEJ12X150-50SB (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 ACPJ12X150-50SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -50 | 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 ACPJ12X150-50SB Is Used
Small-part ejection from plastic molds
The 56.5 N push at 0.5 MPa is enough to kick light molded clips off a benchtop mold, while the 100-150 mm adjustable range matches shallow cavity depth without repositioning the mount.
Gantry pick-head lift with position feedback
With the -S magnet fitted, CMSE or DMSE switches confirm rod position on a 150 mm lift of about 2.9 kg vertically - a typical fit for electronics tray handling heads.
Benchtop test-rig press for connectors
A 34 N working force (about 0.6 of rated push) seats ribbon connectors in QA jigs, and the stop screw locks in a repeatable stroke anywhere from 100 to 150 mm.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X150-50SB with the ACEJ12X150-50SB
Size up if 56.5 N at 0.5 MPa is marginal: the 16 mm bore delivers 100.5 N push and the 20 mm bore 157.1 N in the same compact family. Size down only if your stroke fits the 50 mm standard limit of the 12 mm bore - this 150 mm stroke is a made-to-order build. The 50 mm adjust window covers fixtures that need a final trim between 100 and 150 mm. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve if the load must stay put. FA/FB flanges and LB feet bolt to the standard face, and the -S magnet supports CMSE / DMSE switches. For new projects, order ACEJ12X150 - the discontinued ACPJ's direct successor in the same bore, stroke and force class.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X150-50SB
- ✓ 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 ACPJ12X150-50SB 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. The 150 mm stroke is non-standard for the 12 mm bore (standard max 50 mm) and is made to order.
The -50 code adds a stop screw that shortens the 150 mm extend stroke by up to 50 mm, giving a usable 100-150 mm range; it is an end stop, not a load-holding device. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted for position signals. The ACPJ is discontinued - the current-production replacement is ACEJ12X150 (same bore, stroke and force class); confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X150-50SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X150-50SB replacement — usually within 7-8 hours.