Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB
The AirTAC ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø50mm bore and 120mm stroke, 1/8" 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.
- BoreØ50 mm
- Stroke120 mm
- Port size1/8"
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM10×1.5
- 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB
The -30 code gives it a 30 mm adjustment window: an external stop screw trims the extend stroke anywhere between 90 and 120 mm on site, so one cylinder serves several fixture positions. The male rod thread (B code) and the fitted -S magnet make it sensor-ready out of the box.
The hard-anodized aluminium body with an S45C hard-chrome rod saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which matters in tight machine frames and guarding. A fixed TPU bumper at each end absorbs end-of-stroke impact, and speed spans 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 120 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 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 (Ø50mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB Is Used
Fixture clamping on CNC pallets
The 90-120 mm adjustable extend range lets one cylinder clamp tall and short pallets on the same jig, with about 589 N of practical holding force at 0.5 MPa.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB the Right Cylinder?
The 120 mm stroke is well inside the 250 mm maximum standard stroke for this bore, so it ships as a catalogue item. Remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, and the rod will drift if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and the fitted -S magnet accepts CMSE / DMSE switches for end-position sensing.
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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ50X120-30SB FAQ
At 0.5 MPa it pushes 981.7 N and pulls 881.2 N; at 0.7 MPa those rise to 1374.4 N and 1233.7 N, with a theoretical maximum of 200.2 kgf at 1.0 MPa. The -30 code is a 30 mm adjustment window: turn the external stop screw to set the extend stroke anywhere from 90 to 120 mm. The stop is a mechanical end stop only - it does not hold a load if air pressure is lost. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, port 1/8" PT, rod 16 mm with male thread.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow machine frames and guarded cells. This model carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches mount directly in the body slots to signal extend and retract positions. Mounting options include FA flange and LB foot, plus I and Y rod knuckles; a fixed TPU bumper at each end absorbs end-of-stroke impact.
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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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