Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30B
The AirTAC ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 35mm 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
- Stroke35 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 ACEJ12X35-30B
The ACEJ12X35-30B is a double acting AirTAC compact cylinder built to ISO 21287, with a 12 mm bore and a 35 mm stroke that an external stop screw trims anywhere in a 30 mm window, giving a usable extend range of 5-35 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, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi) and rod speed runs 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures where a full-length body will not fit. The hard-anodized aluminium body carries a 6 mm S45C hard-chrome rod with a male thread (the B code), and fixed TPU bumpers absorb end-of-stroke shock at both ends. This unit has no magnet; order the optional -S code if you need CMSE / DMSE switch sensing.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30B Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| 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 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 ACEJ12X35-30B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 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 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 ACEJ12X35-30B Is Used
Micro part ejection
Trims its 5-35 mm extend range to eject small machined or moulded parts weighing up to about 3 kg from a nest, with the stop screw set per part family.
Compact test stations
The short body, roughly half the length of an ISO 15552 profile cylinder, fits inside bench-top leak or press-check rigs where space is minimal.
Adjustable indexing pins
Sets exact pin projection per product variant on small assembly pallets, re-trimmed on site within the 30 mm window without swapping cylinders.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30B the Right Cylinder?
Step up to bore 16 for 100.5 N or bore 20 for 157.1 N if the load grows. The -30 window means the 35 mm stroke can be shortened by up to 30 mm on site, so one cylinder covers several fixture positions. The stop screw is a mechanical end stop only, not a mid-stroke lock, so the rod still drifts if air is lost. Mounting: FA flange or LB foot brackets plus I/Y rod knuckles bolt to the ISO 21287 face. Port is M5x0.8 and the rod end is male thread (B code).
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 ACEJ12X35-30B FAQ
It is double acting with a 12 mm bore, 35 mm stroke adjustable down to 5 mm via the -30 stop screw, M5x08 ports (M5x0.8), a 6 mm male-thread rod, 0.15-1.0 MPa (22-145 psi) air, 30-500 mm/s speed and fixed TPU bumpers both ends.
An external stop screw shortens the extend stroke by up to 30 mm within the ordered window, so the rod stops anywhere from 5 mm to the full 35 mm; it is a mechanical end stop, not a mid-stroke lock or brake. This model has no magnet, so no switch can be read; order the optional -S magnet version to run CMSE or DMSE switches. Mounting is via FA flange, LB foot or FTC brackets on the ISO 21287 face.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30B
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