Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB is a genuine double acting, 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, adjustable stroke
- Rod threadM3×0.5
- CushionFixed TPU bumper (both ends)
About the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB
The ACEJ12X35-30SB is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 35 mm stroke by up to 30 mm on site, giving a usable range of 5-35 mm without changing the cylinder. At 0.5 MPa this 12 mm bore pushes 56.5 N and pulls 42.4 N, and a fixed TPU bumper at each end absorbs end-of-stroke energy. Running at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s, it suits small clamping and positioning heads on light fixtures.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body cannot. The hard-anodized aluminium barrel carries the optional -S magnet, which this model includes, so CMSE / DMSE reed or solid-state switches can be mounted anywhere along the slots. Plan on roughly 34 N of real work at 0.5 MPa (about 60% of the rating), which is around 3 kg lifted vertically with a 2:1 margin.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 35 mm |
| Acting type | Double acting, 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB
| 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 (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 ACEJ12X35-30SB Is Used
Micro press fitting of connectors
A 5-35 mm adjustable stroke lets a small electronics fixture press ribbon connectors into PCB housings with the 56.5 N push force at 0.5 MPa, trimmed precisely per part.
Position-verified sorting gates
With the fitted -S magnet, CMSE or DMSE switches confirm extend and retract on a small divert gate, while the 42.4 N pull at 0.5 MPa returns the gate reliably.
Compact jig ejection in watchmaking
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, ejects finished watch components from shallow jigs where space is minimal.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB the Right Cylinder?
Size down to ACEJ12 if your load stays under about 34 N at 0.5 MPa; step up to the 16 mm bore (100.5 N push at 0.5 MPa) if you need more margin. The 35 mm stroke is well inside the 50 mm maximum standard stroke for this bore, so it is a catalogue item. The stop screw is a mechanical end stop only - it shortens the extend stroke but does not hold a load if air is lost. This unit carries the -S magnet and a male (B) rod thread with PT ports; pair it with FA flange or LB foot mounts and I/Y rod knuckles.
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 ACEJ12X35-30SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum is 11.5 kgf at 1.0 MPa. It is double acting with a 30 mm adjustment window on the 35 mm extend stroke (usable 5-35 mm), a 6 mm male-thread rod, M5x0.8 port, operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, and air filtered to 40 um.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and a fixed TPU bumper at each end absorbs end-of-stroke impact. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clipped into the body slots. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt straight to the ISO 21287 face; for outline dimensions, confirm from datasheet.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.