This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X100-50, 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 ACPJ12X100-50
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X100-50 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X100-50 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke100 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X100-50
- 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 ACPJ12X100-50
The ACPJ12X100-50 is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the ordered 100 mm stroke by up to 50 mm, giving a usable range of 50-100 mm on site. This 12 mm bore size delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 N / 59.4 N at 0.7 MPa), running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi) with speeds of 30-500 mm/s. Note that the 100 mm stroke exceeds the 50 mm maximum standard stroke for bore 12, so this is a made-to-order build.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures and guarding where a full-length body cannot. A fixed TPU bumper sits at both ends, and the hard-anodized aluminium body carries an S45C hard-chrome rod with a female M3x0.5 thread. As a working figure, plan on roughly 34 N of real push force at 0.5 MPa (about 60% of rating), which lifts around 1.7 kg vertically with a 2:1 margin. This model is discontinued; the current-production replacement is ACEJ12X100, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-50 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-50 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X100-50 |
| Bore size | Ø12 mm |
| Stroke | 100 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 ACEJ12X100-50 (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 ACPJ12X100-50
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×100 | 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 ACPJ12X100-50 Is Used
Small-part ejection from plastic molds
The 56.5 N push at 0.5 MPa nudges finished clips or caps off a benchtop mold, and the 50-100 mm adjustable range lets the operator set the exact eject position per tool.
Indexing gate on a compact feeder track
A short-stroke gate stops single components on a vibration feeder; with the optional -S magnet, CMSE or DMSE switches confirm gate open and closed.
Sample press in a lab automation station
About 1.7 kg of vertical lift capacity at a 2:1 margin suits pressing microplate lids or dip-probes, with the stop screw trimming extend travel between 50 and 100 mm.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-50 with the ACEJ12X100-50
At 12 mm bore this is the smallest force class in the range: 56.5 N push at 0.5 MPa. Step up to bore 16 for 100.5 N or bore 20 for 157.1 N if the load needs more headroom. The 50 mm adjustment window suits stations where the final extend position is tuned during commissioning, but remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, and the rod will drift if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches; this code has no magnet fitted. For new designs, order the ACEJ12X100 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X100-50
- ✓ 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 ACPJ12X100-50 FAQ
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 maximum of 11.5 kgf at 1.0 MPa. The -50 code gives a 50 mm adjustment window, so the stop screw trims the 100 mm extend stroke anywhere down to 50 mm. It runs double acting on 0.15-1.0 MPa (22-145 psi) air at 30-500 mm/s.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange and LB foot options on the standard face and a fixed TPU bumper at each end. The ACPJ family is discontinued; the current drop-in is ACEJ12X100 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X100-50
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X100-50 replacement — usually within 7-8 hours.