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AirTAC ACEJ Series · ISO 21287 Compact Cylinder

Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10

The AirTAC ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10 is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 45mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.

  • BoreØ12 mm
  • Stroke45 mm
  • Port sizeM5×0.8
  • Acting typeDouble acting, double rod, adjustable stroke
  • Rod threadM3×0.5
  • CushionFixed TPU bumper (both ends)
$38.41 $44.69Save 14% Standard model — ready in 3-5 business days to process and dispatch
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About the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10

The ACEJ12X45-10 is a double acting AirTAC compact cylinder built to ISO 21287, with a 12 mm bore and 45 mm stroke that an external stop screw trims down by up to 10 mm, giving a usable extend range of 35-45 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 hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into small fixtures and guarding where a full-length body will not fit.

Air ports are M5x0.8, pressure runs 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and fixed TPU bumpers absorb end-of-stroke shock at both ends. No magnet is fitted; order the optional -S code if you later need CMSE or DMSE switch sensing.

Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10 Technical Specifications

ModelAirtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10
SeriesACEJ compact cylinder
StandardISO 21287
Bore sizeØ12 mm
Stroke45 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 TPU bumper (both ends)
Max standard strokeUp to 50 mm

Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.

Theoretical Output Force (Ø12mm)

PressureForce (both ways)
0.5 MPa42 N
0.7 MPa59 N
Max (@1.0 MPa)9 kgf

ACEJ 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 ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10

ACEJISO 21287 compact cylinder (adjustable-stroke).
12Bore size in mm.
×45Stroke length in mm.
-10Adjustable stroke window (mm the extend stroke can be shortened on site).
SOptional built-in magnet for CMSE / DMSE sensors (omit for no magnet).
BRod type: B = male thread; blank = female thread.

ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (double rod, adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.

Where the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10 Is Used

tune

Micro part ejection

Trims the 45 mm stroke down to 35 mm on a small electronics feeder so delicate connectors are pushed clear without overtravel.

sensors

Compact slide actuation

Drives a miniature guide slide inside a tight inspection station, with CMSE or DMSE switches available once the optional -S magnet is ordered.

Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10 the Right Cylinder?

Remember the stop screw only shortens the extend stroke - it is a mechanical end stop, not a mid-stroke lock, so the rod will drift if air is lost. Mounting uses FA flange or LB foot on the ISO 21287 face, and sensing requires the optional -S magnet ordered at purchase.

Quick checklist

  • ✓ Required force at your working pressure
  • ✓ Short stroke fits the compact body
  • ✓ Port/thread type (PT / G)
  • ✓ Add -S if you need the magnet for sensors
  • ✓ Rod type (female / male B) & mount (FA/LB/CA)
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Installation & Maintenance Notes

  • check Use clean air filtered to 40µm or finer.
  • check Keep within 0.15 – 1.0 MPa operating pressure.
  • check Compact body: keep the stroke short and avoid side load on the rod.
  • check Do not dismantle the threaded front/back covers.
  • check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
  • check Installation by qualified personnel per AirTAC docs.

Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10 FAQ

At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa push is 79.2 N and pull 59.4 N; theoretical maximum is 11.5 kgf at 1.0 MPa. The ordered stroke is 45 mm and the -10 stop screw trims the extend stroke by up to 10 mm, so the working range is 35-45 mm. Ports are M5x0.8, pressure 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s.

It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, S45C hard-chrome-plated 6 mm rod and fixed TPU bumpers at both ends, about 50% shorter in mounting length than an ISO 15552 profile cylinder. This model has no magnet fitted; the optional -S code adds one so CMSE or DMSE switches can be mounted. FA flange and LB foot mountings bolt to the standard ISO 21287 face.

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