Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50S
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50S 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 ACEJ63X55-50S
The ACEJ63X55-50S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 55 mm stroke down by up to 50 mm, giving a usable range of 5-55 mm without changing the cylinder. At 0.5 MPa the 63 mm bore delivers 1558.6 N on the extend stroke and 1458.1 N on retract, rising to 2182.1 N / 2041.3 N at 0.7 MPa, with a theoretical maximum of 317.9 kgf at 1.0 MPa.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and machine frames. As a rule of thumb, plan on roughly 935 N (about 95 kg) of real work at 0.5 MPa, which corresponds to lifting around 79 kg vertically with a 2:1 margin. This -S model carries the optional magnet, so CMSE / DMSE reed or solid-state switches can be fitted for end-of-stroke sensing, and the fixed TPU bumper at both ends absorbs end-of-travel shock. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, at speeds of 30-500 mm/s.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50S Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50S |
|---|---|
| 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 ACEJ63X55-50S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×55 | Stroke length in mm. |
| -50 | 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 ACEJ63X55-50S Is Used
Press-fit clamping of aluminium housings
The 1558.6 N push at 0.5 MPa seats light aluminium die-cast housings into assembly jigs, and the 5-55 mm trim lets one cylinder serve several fixture depths.
Lift-and-lower gate on a packaging line
With about 79 kg of vertical lift capacity at a 2:1 margin, the cylinder raises small product gates and diverters, while CMSE switches confirm up and down positions.
Slide actuation on a CNC tending gantry
The short body, roughly half the mounting length of an ISO 15552 profile cylinder, fits the cramped Z-axis envelope of machine-tending slides with a 55 mm working stroke.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50S the Right Cylinder?
At this force class the 63 mm bore sits between the 50 mm bore (981.7 N push at 0.5 MPa) and the 80 mm bore (2513.3 N push at 0.5 MPa), so pick 63 mm when a 50 mm unit is marginal but 80 mm is oversized. Remember the stop screw is a mechanical end stop only: on air loss the piston still drifts, so it must not be relied on to hold a load mid-stroke. FA flange or LB foot mounts bolt straight to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report position. The female M10x1.5 rod thread and 1/8" PT ports suit standard fittings.
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 ACEJ63X55-50S 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 bore is 63 mm with a 16 mm rod, the extend stroke is adjustable from 5-55 mm via the 50 mm stop-screw window, ports are 1/8" PT, the rod thread is female M10x1.5, and speed is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi).
An external stop screw shortens the extend stroke by up to 50 mm, so the effective range is 5-55 mm; it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. Because this is the -S version, the magnet is fitted and CMSE / DMSE reed or solid-state switches can be clipped into the body slots. The fixed TPU bumper at each end absorbs end-of-stroke shock, and FA flange or LB foot mounts attach directly to the ISO 21287 face.
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