Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-40S
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-40S 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 ACEJ63X55-40S
The ACEJ63X55-40S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. Its 63 mm bore delivers 1558.6 N push and 1458.1 N pull at 0.5 MPa, rising to 2182.1 N at 0.7 MPa, with a theoretical maximum of 317.9 kgf at 1.0 MPa. The external stop screw trims the 55 mm stroke by up to 40 mm on site, giving a usable extend range of 15-55 mm without changing the cylinder.
The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and gantries. A fixed TPU bumper at each end absorbs end-of-stroke energy, and the S code means the magnet is already fitted, so CMSE or DMSE switches can be mounted for end-position sensing. Plan on roughly 935 N (about 95 kg) of real working push at 0.5 MPa, which corresponds to lifting around 79 kg vertically with a 2:1 margin.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-40S Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-40S |
|---|---|
| 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 ACEJ63X55-40S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×55 | Stroke length in mm. |
| -40 | 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 ACEJ63X55-40S Is Used
Press-fit clamping of bearing housings
The 1558.6 N push at 0.5 MPa seats automotive bearing housings into housings on a assembly bench, with the 40 mm window letting you dial the press stroke between 15 and 55 mm per part variant.
Short-stroke ejector on a packaging line
Mounted under a carton conveyor, the compact body fits where an ISO 15552 profile cylinder is too long, kicking rejected packs off the line at up to 500 mm/s.
Lift-and-lower gate on a machine guard
Lifts about 79 kg of steel guard panel vertically with a 2:1 margin, and the fitted magnet plus a CMSE switch confirms the gate is fully down before the cycle starts.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-40S the Right Cylinder?
Size against load: the next bore down, ACEJ50, gives 981.7 N push at 0.5 MPa, while the next bore up, ACEJ80, reaches 2513.3 N. If your clamping or pressing job needs more than about 935 N of usable force, this 63 mm bore is the right step. Remember the stop screw only shortens the extend stroke and drifts on air loss, so it is not a load-holding device. FA flange or LB foot mounts and I/Y rod knuckles bolt to the ISO 21287 face, and the fitted magnet pairs with CMSE / DMSE switches. Speed range is 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
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 ACEJ63X55-40S FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa it pushes 2182.1 N and pulls 2041.3 N; theoretical maximum is 317.9 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 55 mm extend stroke by up to 40 mm, so the usable range is 15-55 mm. It shortens the stroke only and acts as a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
This is an ISO 21287 compact cylinder whose hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a 16 mm hard-chrome-plated S45C rod and M10x1.5 female rod thread. The S in the model code means the optional -S magnet is fitted on this unit, so CMSE or DMSE reed or solid-state switches can be clipped into the body slots for end-position detection. Air ports are 1/8" PT, and FA flange or LB foot mounts bolt straight to the standard face.
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