Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50SB
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50SB 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 ACEJ63X55-50SB
A double acting ISO 21287 compact cylinder, the ACEJ63X55-50SB pairs a 63 mm bore with a 55 mm stroke that an external stop screw trims anywhere in a 50 mm window, giving a usable extend range of 5-55 mm. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa those rise to 2182.1 N and 2041.3 N, with a theoretical ceiling of 317.9 kgf at 1.0 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into gantries and guarding where a full-length body will not fit.
Because the -S magnet is fitted on this model, CMSE or DMSE reed and solid-state switches mount directly in the body slots for end-of-travel signals. The B code gives a male 16 mm rod thread, and the port is 1/8". Plan on roughly 935 N (about 95 kg of force) of real work at 0.5 MPa, and for vertical lifts treat it as lifting about 79 kg with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke shock, and speed runs 30-500 mm/s.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50SB Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50SB |
|---|---|
| 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 ACEJ63X55-50SB
| 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 ACEJ63X55-50SB Is Used
CNC fixture clamping
The 1558.6 N push at 0.5 MPa clamps steel housings in machining fixtures, and the 5-55 mm trim lets one cylinder serve several part heights without re-plumbing.
Press-fit assembly stations
With about 95 kg of usable working force at 0.5 MPa, this bore presses bushings and bearings into small housings on automated assembly lines.
Gantry pick-and-place stops
The short body, roughly half the mounting length of an ISO 15552 profile cylinder, fits under tight gantry rails to stop and position totes on conveyor transfers.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-50SB the Right Cylinder?
At 1558.6 N push at 0.5 MPa this 63 mm bore sits between the 50 mm bore (981.7 N) and the 80 mm bore (2513.3 N), so pick it when a 50 is undersized but an 80 is oversized for the fixture. Remember the stop screw only shortens the extend stroke and is not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve if the load must stay put. FA flange, LB foot and FTC brackets plus I and Y rod knuckles bolt to the ISO 21287 face, and the fitted -S magnet means CMSE / DMSE switches work out of the box. Ports are 1/8"; the male rod thread suits external clevises and tooling plates.
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 ACEJ63X55-50SB FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa, 2182.1 N push and 2041.3 N pull; theoretical maximum is 317.9 kgf at 1.0 MPa. The -50 code is a 50 mm adjustment window: an external stop screw shortens the 55 mm extend stroke on site, so the usable range is 5-55 mm. It shortens the stroke only and never lengthens it past 55 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C.
The -S magnet is fitted on this model, so CMSE or DMSE reed and solid-state switches can be clipped into the body slots for end-of-travel detection; models ordered without -S carry no magnet. Mounting uses FA flange, LB foot or FTC brackets plus I and Y rod knuckles on the ISO 21287 face. The rod is 16 mm with a male thread (B code), the port is 1/8", and a fixed TPU bumper at each end absorbs end-of-stroke energy. It is a compact short-body cylinder, about 50% shorter in mounting length than an ISO 15552 profile cylinder.
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