This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X80-50SB, 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 ACPJ12X80-50SB
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X80-50SB 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 ACEJ12X80-50SB (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 → ACEJ12X80-50SB
- 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 ACPJ12X80-50SB
This is a double acting, adjustable-stroke compact cylinder in the AirTAC ACPJ family, now discontinued. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 N / 59.4 N at 0.7 MPa), with a theoretical peak of 11.5 kgf at 1.0 MPa. The -50 code gives a 50 mm adjustment window: a stop screw trims the 80 mm extend stroke down to as little as 30 mm, so one cylinder covers a 30-80 mm working range. The 80 mm stroke exceeds the 50 mm standard maximum for bore 12, so it is a made-to-order build. The hard-anodized aluminium body is an ISO 21287-class short design that saves about 50% of the mounting length of an ISO 15552 profile cylinder.
The S code means the optional magnet is fitted on this unit, so CMSE or DMSE reed and solid-state switches can be mounted directly on the body. The B code gives a male rod thread (6 mm rod, PT ports). A fixed TPU bumper sits at both ends and only decelerates the piston near the ends of travel; the stop screw is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. For sizing, treat roughly 34 N (0.6 of the 56.5 N push) as the realistic working force at 0.5 MPa, which lifts about 1.7 kg vertically with a 2:1 margin. The current-production replacement is ACEJ12X80 - confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X80-50SB |
| 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 ACEJ12X80-50SB (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 ACPJ12X80-50SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×80 | 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 ACPJ12X80-50SB Is Used
Semiconductor fixture clamping
The 30-80 mm trimmed extend range lets one cylinder serve multiple fixture heights on a 300 mm wafer-handling jig, with 56.5 N push at 0.5 MPa enough for light clamps.
Pick-and-place confirmation
With the -S magnet fitted, CMSE or DMSE switches confirm full extension on a small electronics assembly gantry where the 6 mm rod handles about 1.7 kg vertical lifts with margin.
Lab ejection station
A stop screw set at 45 mm gives repeatable part ejection from a test-rack nest, with the short ISO 21287-class body fitting where an ISO 15552 profile cylinder cannot.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50SB with the ACEJ12X80-50SB
Size both ways: if 56.5 N push at 0.5 MPa is marginal, step up to bore 16 (100.5 N push); if the load is light and space is very tight, bore 12 is already the smallest ACPJ bore, so consider the fixed-stroke ACP12X80 instead. Match FA/FB flange or LB foot hardware to the fixture, and remember the magnet here is the -S option this model carries - order plain codes without S only when no CMSE / DMSE switching is needed. This model is discontinued; ACEJ12X80 is the current drop-in successor in the same bore, stroke and force class, but verify ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X80-50SB
- ✓ 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 ACPJ12X80-50SB 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 -50 code is a 50 mm window: the stop screw trims the 80 mm stroke down to 30 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, port M5x0.8, rod 6 mm with male thread. The 80 mm stroke is a made-to-order size above the 50 mm standard maximum for bore 12.
No - the ACPJ family is discontinued. The current-production replacement is ACEJ12X80 (swap the P for an E), an ISO 21287 compact cylinder in the same bore, stroke and force class with a matching short body and mounting family. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before ordering the swap. The fixed TPU bumpers, FA/FB flange and LB foot options carry over, and the magnet remains an -S option for CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X80-50SB
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X80-50SB replacement — usually within 7-8 hours.