Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20S
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 90mm 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
- Stroke90 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 ACEJ63X90-20S
The ACEJ63X90-20S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. A stop screw on the outside of the body trims the 90 mm stroke down by up to 20 mm, giving a usable range of 70-90 mm without changing the order code. At 0.5 MPa the 63 mm bore delivers 1558.6 N on the push stroke and 1458.1 N on the pull stroke, rising to 2182.1 N push at 0.7 MPa. The hard-anodized aluminium body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into tight clamping fixtures where a full-length profile cylinder will not fit.
This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped into the body slots for end-of-stroke sensing. The 16 mm hard-chrome S45C rod ends in a female M10x1.5 thread, and the 1/8" port keeps the air plumbing compact. As a planning figure, treat roughly 935 N (about 95 kg equivalent) as the practical working force at 0.5 MPa, which corresponds to lifting roughly 79 kg vertically with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke impact, and speed spans 30-500 mm/s across 0.15-1.0 MPa (22-145 psi) supply.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20S Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 90 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 ACEJ63X90-20S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×90 | 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 ACEJ63X90-20S Is Used
Clamping of machined housings
With 1558.6 N push at 0.5 MPa and a 70-90 mm trimmed stroke, the cylinder clamps aluminium gearbox housings in a dedicated drilling fixture, and the short ISO 21287 body fits inside the fixture guard.
Vertical lift on a palletizing head
Halving the 1558.6 N push force gives a vertical lift of about 79 kg with a 2:1 margin, enough to raise stacked carton layers; CMSE switches on the fitted magnet confirm up and down positions.
Ejector on a stamping press
The 90 mm stroke, trimmed down to 70 mm via the stop screw, ejects formed brackets from the die, with the 1458.1 N pull stroke retracting the platen quickly at up to 500 mm/s.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20S the Right Cylinder?
At 63 mm bore this sits in the mid-heavy class: a 50 mm bore gives 981.7 N push at 0.5 MPa and an 80 mm bore gives 2513.3 N, so choose 63 mm when your clamp or press needs roughly 1.5 kN. Remember the stop screw only shortens the extend stroke within the 20 mm window and does not lock the piston mid-stroke; on air loss the rod still drifts, so add a separate holding valve if the load must stay put. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report position from day one.
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 ACEJ63X90-20S FAQ
Push is 1558.6 N and pull 1458.1 N at 0.5 MPa; at 0.7 MPa push reaches 2182.1 N. Theoretical maximum is 317.9 kgf at 1.0 MPa. It is double acting with a 20 mm adjustable window on the 90 mm extend stroke (70-90 mm usable), a 16 mm rod with female M10x1.5 thread, a 1/8" port, operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, and a fixed TPU bumper at both ends.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange, LB foot or FTC brackets plus I/Y rod knuckles bolt straight to its face. This version includes the optional -S magnet, so CMSE or DMSE reed and solid-state switches mount in the body slots for position feedback. The end bumper is a fixed TPU pad only; it decelerates at the ends and never holds or brakes a load.
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