This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X110-50B, 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 ACPJ12X110-50B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X110-50B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 110mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X110-50B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke110 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X110-50B
- 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 ACPJ12X110-50B
This double acting compact cylinder from AirTAC's ACPJ line pairs a 12 mm bore with a 110 mm stroke and a 50 mm adjustment window, so a stop screw trims the extend stroke anywhere in a 60-110 mm range on site. At 0.5 MPa it delivers 56.5 N of push and 42.4 N of pull, rising to 79.2 N at 0.7 MPa. The 110 mm stroke is longer than the 50 mm standard limit for this bore, so it is a made-to-order build. Note: this model is discontinued - the current drop-in is ACEJ12X110, and you should confirm the ISO 21287 mounting dimensions before swapping.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures and guarded assemblies. A hard-anodized aluminium body carries an S45C hard-chrome rod with a fixed TPU bumper at each end, and the B code gives a male rod thread. In practice, plan on about 34 N (roughly 3 kg of vertical lift with a 2:1 margin) of real work at 0.5 MPa rather than the full 56.5 N rating. Running spec: 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C, air filtered to 40 um.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X110-50B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X110-50B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X110-50B |
| Bore size | Ø12 mm |
| Stroke | 110 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 ACEJ12X110-50B (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 ACPJ12X110-50B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×110 | 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 ACPJ12X110-50B Is Used
Lab sample ejector
The 56.5 N push at 0.5 MPa is enough to slide microscope slides or small sample trays off a deck, and the 60-110 mm adjustable range lets technicians tune the ejection distance without changing cylinders.
Blister carton kick-off
On small packaging lines, the trimmed extend stroke kicks lightweight cartons off a conveyor lane at up to 500 mm/s, and the compact body fits beside narrow guide rails where a full-length cylinder would not.
Fixture height stop
Machinists use the 50 mm stop screw as a repeatable end position on drilling jigs for small brackets, setting the exact extend depth per part number during setup.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X110-50B with the ACEJ12X110-50B
At 12 mm bore this is the lightest ACPJ size: 56.5 N push at 0.5 MPa versus 100.5 N for the 16 mm bore and 157.1 N for the 20 mm, so step up a size if your mechanism needs more than about 3 kg of vertical lift capacity. The 50 mm window suits jobs where the final extend position is tuned during commissioning; remember the stop only shortens the stroke and does not hold a load if air is lost. This unit has a male rod thread (B) and no magnet - order the -S version if you later need CMSE / DMSE switch positions. For new projects, specify ACEJ12X110 instead, since ACPJ is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X110-50B
- ✓ 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 ACPJ12X110-50B 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 110 mm extend stroke can be trimmed anywhere between 60 and 110 mm with the external stop screw. The stop is a mechanical end position only - it never locks the piston if air pressure is lost.
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 mounting options. Position sensing requires the optional -S magnet code; this model (no S) has no magnet, so no CMSE / DMSE switch can be mounted on it. Since ACPJ is discontinued, order ACEJ12X110 as the current replacement and verify the ISO 21287 mounting dimensions first.
Related AirTAC ACE Cylinders
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