Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 55mm 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.
- BoreØ63 mm
- Stroke55 mm
- Port size1/8"
- Acting typeDouble acting, 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 ACEJ63X55-20S
The ACEJ63X55-20S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 55 mm stroke by up to 20 mm on site, giving a usable range of 35-55 mm without changing the cylinder. At 0.5 MPa the 63 mm bore delivers 1558.6 N push and 1458.1 N pull, rising to 2182.1 N push at 0.7 MPa. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into tight clamping fixtures and gantries where a full-length body will not fit.
In practice that force means real work: plan on roughly 935 N (about 95 kgf) of usable push at 0.5 MPa rather than the full rating, which lifts about 79 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries a 16 mm S45C hard-chrome rod, a fixed TPU bumper at both ends absorbs end-of-stroke energy, and the fitted -S magnet accepts CMSE / DMSE switches for end-position sensing. Air supply is filtered to 40 um, pressure runs 0.15-1.0 MPa (22-145 psi), and speed spans 30-500 mm/s.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 55 mm |
| Acting type | Double acting, 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×55 | Stroke length in mm. |
| -20 | 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S Is Used
Press-fit clamping of gearbox housings
With 1558.6 N push at 0.5 MPa and a stroke trimmed to 35-55 mm by the stop screw, the cylinder seats bearings into aluminium housings on an automotive assembly line without over-travel.
Pallet lift-and-lower module
The 63 mm bore lifts about 79 kg vertically with a 2:1 margin, so a 40 kg pallet elevator on a packaging gantry runs comfortably, with the fitted magnet and DMSE switches confirming top and bottom positions.
Gate pusher on a bottling line
Short 55 mm body, roughly half the length of an ISO 15552 profile cylinder, fits behind the guard rail to divert bottle slugs, with the 1/8" port plumbed straight into the existing manifold.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20S the Right Cylinder?
Size against neighbours: the 50 mm bore gives 981.7 N push at 0.5 MPa while the 80 mm bore reaches 2513.3 N, so the 63 mm at 1558.6 N sits squarely in the mid-heavy clamping and lifting band. If the stroke must be trimmed after installation, this -20 window covers it; if you need the full 55 mm every cycle, the fixed-stroke ACE63X55 is the simpler order. FA flange or LB foot mountings bolt to the ISO 21287 face, and the fitted magnet means CMSE / DMSE switches can be added at any time. Remember the stop screw is a mechanical end stop only - on air loss the piston drifts, so add a separate valve for load holding.
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 ACEJ63X55-20S FAQ
Push is 1558.6 N and pull 1458.1 N at 0.5 MPa; at 0.7 MPa push rises to 2182.1 N and pull to 2041.3 N, with a theoretical maximum of 317.9 kgf at 1.0 MPa. The ordered stroke is 55 mm and the -20 stop screw shortens the extend stroke by up to 20 mm, so the usable range is 35-55 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed 30-500 mm/s.
It is an ISO 21287 compact cylinder: hard-anodized aluminium body with a roller-burnished bore, 16 mm hard-chrome-plated S45C rod, threaded aluminium covers and a fixed TPU bumper at each end that only decelerates at the ends of travel. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clipped onto the body slot for end-position detection.
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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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