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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 ACEJ12X30-10SB, 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 ACPJ12X30-10SB

The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X30-10SB 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 ACEJ12X30-10SB (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 → ACEJ12X30-10SB
$39.30 $46.80Save 16% Ships as ACEJ12X30-10SB (current AirTAC replacement)
Ships as ACEJ12X30-10SB, 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 ACEJ12X30-10SB we ship. View ACEJ12X30-10SB
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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 ACPJ12X30-10SB

The ACPJ12X30-10SB is a double acting, adjustable-stroke compact cylinder with a 12 mm bore and 30 mm stroke. Air drives the rod in both directions, and the -10 stop screw trims the extend stroke by up to 10 mm on site, giving a usable range of 20-30 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N and 59.4 N at 0.7 MPa. 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 guarding where a full-length body will not fit.

Because the -S magnet is fitted on this model, CMSE / DMSE reed or solid-state switches can be mounted directly for end-of-stroke sensing. The rod end carries a male thread (B code) and the air port is M5x0.8. As a working rule, plan on roughly 34 N of real work at 0.5 MPa (about 60% of the push rating), which corresponds to lifting around 2 kg vertically with margin. Note this model is discontinued: the current-production replacement is the ACEJ12X30, so confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.

Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10SB Technical Specifications

ModelAirtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10SB
SeriesACPJ DIN compact cylinder (discontinued)
ReplacementACEJ12X30-10SB
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 ACEJ12X30-10SB (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 ACPJ12X30-10SB

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 ACPJ12X30-10SB Is Used

precision_manufacturing

Small-part ejection in plastic molding

The 56.5 N push at 0.5 MPa is enough to strip tiny molded clips or pins off a core, and the 20-30 mm trimmed stroke keeps the ejector footprint tight inside the tool.

sensors

Position-verified gating on an assembly line

With the fitted -S magnet and a CMSE switch, a PLC confirms the gate has fully retracted before the next pallet is released, at cycle speeds up to 500 mm/s.

build

Compact clamping in electronics fixtures

Around 2 kg of vertical lift equivalent with margin suits holding PCB trays or connector housings in test rigs where the short body must fit under a low gantry.

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

At 12 mm bore this is the smallest size in the family: 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 bore. Step up a bore if your load exceeds about 34 N of real work at 0.5 MPa. The 30 mm stroke sits well inside the 50 mm maximum standard stroke for this bore, so no made-to-order stroke is needed. The male rod thread suits I/Y knuckles or direct tooling, FA/FB flange or LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACEJ12X30 as the current drop-in successor.

Replacement checklist

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

Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-10SB FAQ

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 maximum of 11.5 kgf at 1.0 MPa. For sizing, count on about 34 N of usable force at 0.5 MPa, roughly 2 kg of vertical lift with a 2:1 margin. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um.

The -10 code is a 10 mm adjustment window: an external stop screw shortens the 30 mm extend stroke to any setting between 20 and 30 mm. It is a mechanical end stop only, not a mid-stroke lock, so the piston still drifts if air is lost. The ACPJ family is discontinued; the current-production replacement is the ACEJ12X30 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, because the ACP is DIN-standard.

Related AirTAC ACE Cylinders

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