Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-30B
The AirTAC ACEJ12 Adjustable Compact Cylinder ACEJ12X45-30B 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)
- 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 ACEJ12 Adjustable Compact Cylinder ACEJ12X45-30B
The ACEJ12X45-30B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. The B code gives a male rod thread on the 6 mm rod, and the M5x0.8 ports suit small pneumatic panels. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it cycles at 30-500 mm/s.
The -30 code sets a 30 mm adjustment window: an external stop screw trims the 45 mm extend stroke on site, so the usable range is 15-45 mm. The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures and guarding. Note the stop screw sets the end position only - it does not lock the piston if air is lost.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-30B Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-30B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 45 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 TPU bumper (both ends) |
| Max standard stroke | Up 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)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 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 ACEJ12X45-30B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| -30 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod 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 ACEJ12X45-30B Is Used
Small-parts ejection
Ejects stamped terminals or plastic micro-parts from a die or nest, with the 15-45 mm adjustable range tuned to each die set.
Light snap-fit pressing
Presses battery covers or connector clips home on electronics assembly benches, using about 34 N of usable force at 0.5 MPa.
Compact test stations
Actuates a probe or limit lever inside tight test rigs where a full-length profile cylinder will not fit; add the -S magnet if switch feedback is needed.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-30B the Right Cylinder?
If you need position feedback, order the -S variant with the optional magnet for CMSE / DMSE switches - this model has no magnet. FA flange or LB foot mounts bolt to the ISO 21287 face, and the male rod thread suits external knuckles or tooling plates.
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)
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 ACEJ12X45-30B FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa push is 79.2 N. Theoretical maximum is 11.5 kgf at 1.0 MPa. The base stroke is 45 mm and the -30 window lets a stop screw trim the extend stroke down to 15 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, port M5x0.8, rod 6 mm with male thread.
It is an ISO 21287 compact cylinder: hard-anodized aluminium body, S45C hard-chrome-plated rod, threaded aluminium covers and a fixed TPU bumper at each end that only decelerates the piston at the ends of travel. The body is about 50% shorter in mounting length than an ISO 15552 profile cylinder. This version has no magnet, so no sensor can be fitted - order the -S code to enable CMSE / DMSE switches. FA flange and LB foot mounts, plus I and Y rod knuckles, bolt straight on.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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