Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20B
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20B 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 ACEJ63X90-20B
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ63X90-20B pairs a 63 mm bore with a 90 mm stroke and a male rod thread (B code). At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N on the extend stroke at 0.7 MPa - enough for clamping, pressing and lifting jigs in the 150 kg class. The external stop screw trims the extend stroke anywhere in the ordered 20 mm window, so the usable range is 70-90 mm without changing the cylinder.
The hard-anodized aluminium body with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters inside press guards and gantry fixtures. In practice, plan for roughly 935 N (about 95 kg of push) of real work at 0.5 MPa, or lift about 79 kg vertically with a 2:1 margin. FA flange and LB foot mounts bolt to the standard ISO 21287 face, and the fixed TPU bumper at both ends absorbs end-of-stroke shock. Running spec: 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, air filtered to 40 um.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20B Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20B |
|---|---|
| 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 ACEJ63X90-20B
| 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 ACEJ63X90-20B Is Used
Fixture clamping on CNC machining lines
The 1558.6 N push at 0.5 MPa clamps steel housings in milling fixtures, and the 70-90 mm adjustable range lets one cylinder serve several part heights via the stop screw.
Pallet lift-and-lower stations
With about 79 kg of vertical lift capacity at a 2:1 margin, the 63 mm bore raises loaded pallet trays on conveyor transfer decks; the male rod thread (B) suits clevis-style tooling.
Case press-down on packaging machines
Short-body mounting saves about 50% of the length of an ISO 15552 profile cylinder, fitting the 90 mm stroke unit under low guard panels on carton taping and sealing heads.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X90-20B the Right Cylinder?
Size against neighbours: the 50 mm bore gives 981.7 N push at 0.5 MPa, while stepping up to the 80 mm bore delivers 2513.3 N - the 63 mm at 1558.6 N sits squarely between them. If your jig needs a shorter body for the same force, the compact footprint is the reason to stay at 63 mm. Note the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve for suspended loads. This unit has no magnet fitted; order the -S code if you want CMSE / DMSE switch position sensing, and add FA or LB mounts plus I/Y rod knuckles to suit your fixture.
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 ACEJ63X90-20B FAQ
At 0.5 MPa: 1558.6 N push and 1458.1 N pull. At 0.7 MPa: 2182.1 N push and 2041.3 N pull. Theoretical maximum is 317.9 kgf at 1.0 MPa. The -20 code is a 20 mm adjustment window: an external stop screw shortens the 90 mm extend stroke by up to 20 mm, giving a usable 70-90 mm range. It is a mechanical end stop only - it never holds a load on air loss. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, air filtered to 40 um.
The ISO 21287 compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod and a fixed TPU bumper at both ends. Sensing requires the optional -S magnet code - this model (no S) has no magnet, so CMSE / DMSE switches cannot be mounted unless you order -S. FA flange and LB foot mounts bolt to the standard ISO 21287 face, with I and Y rod knuckles available for the male rod thread.
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