This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X35-30B, 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 ACPJ12X35-30B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X35-30B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 35mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X35-30B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke35 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X35-30B
- 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 ACPJ12X35-30B
Double acting and adjustable, the ACPJ12X35-30B is a discontinued DIN-standard compact cylinder with a 12 mm bore and 35 mm stroke. A stop screw trims the extend stroke anywhere inside the 30 mm window, giving a usable range of 5-35 mm on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those rise to 79.2 N and 59.4 N, with a theoretical 11.5 kgf at 1.0 MPa. In practice plan on roughly 34 N of real work at 0.5 MPa, which is about 3 kg lifted vertically with a 2:1 margin.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim jigs and guards. A fixed TPU bumper sits at both ends, the hard-anodized aluminium body carries an S45C hard-chrome rod, and the B code gives a male rod thread with a PT port thread. This model is no longer produced: the current drop-in is ACEJ12X35, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-30B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-30B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X35-30B |
| Bore size | Ø12 mm |
| Stroke | 35 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 ACEJ12X35-30B (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 ACPJ12X35-30B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| -30 | 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 ACPJ12X35-30B Is Used
Micro press ejection
Ejects small stamped terminals from a compact die, with the 30 mm window letting you dial the ejection travel between 5 and 35 mm to match part depth.
Fixture part present check
On the -S version a CMSE or DMSE switch confirms a bracket is seated in a CNC fixture; this non-S unit needs the magnet code added for that role.
Carton flap tuck
The about 3 kg vertical working margin at 0.5 MPa suits tucking light carton flaps on a small packaging line where body length is tight.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X35-30B with the ACEJ12X35-30B
Size both ways: if 56.5 N at 0.5 MPa is marginal for your load, step up to the 16 mm bore for 100.5 N; if 56.5 N is generous, the same bore at a shorter fixed stroke in the ACP range may suit a simpler job. Note the stop screw only shortens the extend stroke and drifts on air loss, so it is not a load-holding device. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. No magnet is fitted on this version, so no CMSE / DMSE switch can be used; order the -S code if sensing is needed. Discontinued: replace with ACEJ12X35 and verify mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X35-30B
- ✓ 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 ACPJ12X35-30B 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 11.5 kgf at 1.0 MPa. Bore is 12 mm, stroke 35 mm with a 30 mm adjustment window (usable 5-35 mm), rod 6 mm, port M5x0.8 with PT thread, male rod thread per the B code, speed 30-500 mm/s, pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), and a fixed TPU bumper at both ends.
The ACPJ family is out of production. The current drop-in is the ISO 21287 ACEJ12X35, which matches 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 against your fixture before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X35-30B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ12X35-30B replacement — usually within 7-8 hours.