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This model is discontinued

AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X30-10B, 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 Series · Discontinued Compact Cylinder

Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10B

The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X30-10B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 30mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X30-10B (ISO 21287 ACE), in the same bore, stroke and force class.

  • BoreØ12 mm
  • Stroke30 mm
  • Port sizeM5×0.8
  • Acting typeDouble acting, double rod, adjustable stroke
  • Rod threadM3×0.5
  • StatusDiscontinued → ACEJ12X30-10B
$37.91 $45.41Save 16% Ships as ACEJ12X30-10B (current AirTAC replacement)
Ships as ACEJ12X30-10B, the current AirTAC replacement (the same code under the new prefix). Order this code as usual. Your cart, checkout and order confirmation will show the ACEJ12X30-10B we ship. View ACEJ12X30-10B
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  • 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.
Compare every ACPJ12 stroke, stroke adjustment and mounting/version on one page All ACPJ12 codes →
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About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10B

The ACPJ12X30-10B is a double acting compact cylinder with an adjustable extend stroke: the -10 code gives a 10 mm stop-screw window, so the 30 mm stroke can be trimmed on site anywhere between 20 and 30 mm. At 0.5 MPa the 12 mm bore delivers 56.5 N push and 42.4 N pull, rising to 79.2 N push at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. As a rule of thumb, plan on roughly 34 N of usable work at 0.5 MPa, which is about 2.9 kg of vertical lift 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 tight fixtures, pick stations and guarding where a full-length body will not fit. The rod end is male thread (the B code) and the air port is M5x0.8. Note this model is discontinued: the current-production replacement is the ACEJ12X30, so confirm ISO 21287 mounting dimensions before swapping.

Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10B Technical Specifications

ModelAirtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10B
SeriesACPJ DIN compact cylinder (discontinued)
ReplacementACEJ12X30-10B
Bore sizeØ12 mm
Stroke30 mm
Acting typeDouble acting, double rod, adjustable stroke
Port sizeM5×0.8
Rod threadM3×0.5
FluidAir (filtered by 40µm element)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 500 mm/s
CushionFixed bumper (both ends)
Max standard strokeUp to 50 mm

Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ12X30-10B (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)

PressureForce (both ways)
0.5 MPa42 N
0.7 MPa59 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 ACPJ12X30-10B

ACPJDIN compact cylinder (adjustable-stroke, discontinued).
12Bore size in mm.
×30Stroke length in mm.
-10Adjustable stroke window (mm the extend stroke can be shortened on site).
SOptional built-in magnet for sensor position sensing (omit for no magnet).
BRod 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 ACPJ12X30-10B Is Used

precision_manufacturing

Small-part ejection from plastic molds

The 56.5 N push at 0.5 MPa is enough to kick lightweight molded caps or bushings off a mold table, and the 20-30 mm adjustable range lets you tune the eject travel without re-plumbing.

sensors

Micro stopper on an electronics conveyor

A 6 mm rod with male thread drives a small stop blade to halt PCB carriers or connector trays; the short body fits under low conveyor frames where a full-length cylinder cannot.

science

Sample press in a lab dosing station

With about 2.9 kg of practical vertical lift, the cylinder seats vial caps or test strips in benchtop diagnostic equipment, trimming the stroke between 20 and 30 mm to match the fixture.

Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10B with the ACEJ12X30-10B

Size the bore by load: if 56.5 N push at 0.5 MPa is marginal for your jig, step up to the 16 mm bore (100.5 N push) or the 20 mm bore (157.1 N push); if the load is lighter, this 12 mm bore keeps the envelope smallest. The 10 mm adjustment window shortens the extend stroke only - it is a mechanical end stop, not a mid-stroke lock, so the rod can still drift on air loss. No magnet is fitted on this version (no S code), so CMSE or DMSE switches cannot be mounted; order an -S variant if sensing is needed. FA/FB flange and LB foot mounts are available. Since the ACPJ12X30-10B is discontinued, order the ACEJ12X30 as the drop-in successor and verify the ISO 21287 mounting dimensions.

Replacement checklist

  • ✓ Current-production ACE → ACEJ12X30-10B
  • ✓ Same bore / stroke / force class
  • ✓ Confirm ISO 21287 mounting dimensions
  • ✓ Port/thread type (PT / G)
  • ✓ Add -S for magnet if you need sensors
View ACEJ12X30-10B

Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10B 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. It is double acting, runs on 0.15-1.0 MPa (22-145 psi) filtered air, proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a fixed TPU bumper at both ends and an M5x0.8 port.

The -10 code is a stop screw that shortens the extend stroke by up to 10 mm, giving a usable 20-30 mm range; it cannot lengthen the stroke past 30 mm and it does not hold a load on air loss. The ACPJ12X30-10B is discontinued - the current drop-in is the ACEJ12X30, so confirm the ISO 21287 mounting dimensions before swapping. The optional -S magnet enables CMSE / DMSE switches; this version has none.

Related AirTAC ACE Cylinders

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