This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X20-10, 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 ACPJ12X20-10
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X20-10 is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 20mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X20-10 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X20-10
- 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 ACPJ12X20-10
This compact 12 mm bore unit is double acting, so air both extends and retracts the 6 mm rod, and its -10 code adds a 10 mm adjustment window: an external stop screw trims the 20 mm extend stroke on site to any usable range from 10 to 20 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N at 0.7 MPa. 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 a full-length body cannot reach.
In practice, plan on about 34 N of real work at 0.5 MPa (roughly 60% of the rated push), which lifts about 2.9 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod with fixed TPU bumpers at both ends, running 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi). Note this model is discontinued; the current-production drop-in is ACEJ12X20, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X20-10 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X20-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X20-10 |
| Bore size | Ø12 mm |
| Stroke | 20 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 ACEJ12X20-10 (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 ACPJ12X20-10
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -10 | 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 ACPJ12X20-10 Is Used
Micro part ejection
Ejects small machined pins or stamped blanks off a fixture; the trimmed 10-20 mm stroke clears only as far as needed in tight die heads.
Lab sample clamping
The 56.5 N push at 0.5 MPa holds microscope slides or sensor housings during test-bench indexing without crushing delicate parts.
Carton flap tuck
Folds small carton flaps on a compact packaging head where the short body fits inside the guard frame and the stop screw sets the tuck depth.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X20-10 with the ACEJ12X20-10
At 56.5 N push and 42.4 N pull at 0.5 MPa, this 12 mm bore suits light clamping and positioning; step up to the 16 mm bore (100.5 N push) if you need nearly double the force, or downsize from 20 mm (157.1 N) to save space. The stop screw only shortens the extend stroke - it is not a mid-stroke lock, so the rod still drifts if air is lost. This unit has no magnet fitted; order the -S version if you need CMSE / DMSE switches. FA/FB flange and LB foot mounts bolt to the standard face. Replaced by ACEJ12X20.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X20-10
- ✓ 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 ACPJ12X20-10 FAQ
Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push rises to 79.2 N and pull to 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The 12 mm bore has a 6 mm rod, M5x0.8 ports, M3x0.5 female rod thread, 0.15-1.0 MPa (22-145 psi) operating range and 30-500 mm/s speed. The -10 code gives a 10 mm adjustment window on the 20 mm stroke.
An external stop screw shortens the extend stroke by up to 10 mm, giving a usable range of 10-20 mm; it cannot lengthen the stroke past the ordered 20 mm and it does not hold a load if air is lost. This model is discontinued - the current-production drop-in is ACEJ12X20 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP series was built to a DIN standard.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X20-10
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X20-10 replacement — usually within 7-8 hours.