Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20 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 ACEJ63X55-20
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ63X55-20 pairs a 63 mm bore with a 55 mm stroke and a 20 mm adjustment window. An external stop screw trims the extend stroke on site anywhere between 35 and 55 mm, so one cylinder serves several fixture positions without reordering. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters in tight clamping stations and gantry frames. In practice, plan on roughly 935 N (about 95 kg) of usable push at 0.5 MPa, or expect it to lift about 79 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, a fixed TPU bumper sits at both ends, and speeds run 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20 Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20 |
|---|---|
| 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 ACEJ63X55-20
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×55 | 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 ACEJ63X55-20 Is Used
Press-fit bushing station
The 1558.6 N push at 0.5 MPa seats bronze bushings in aluminium pump housings, and the 20 mm window lets one cylinder cover two housing depths on the same fixture.
Bottling line reject pusher
Mounted on an LB foot bracket beside the conveyor, the 35-55 mm trimmed stroke kicks underfilled bottles off the line without fouling adjacent guide rails.
Pallet clamp on a machining cell
With about 95 kg of usable push at 0.5 MPa, the cylinder clamps aluminium pallet blanks on a CNC fixture, and the short ISO 21287 body fits under the low guard.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-20 the Right Cylinder?
At this force class the 63 mm bore delivers 1558.6 N push at 0.5 MPa. Step down to a 50 mm bore (981.7 N) for lighter clamps, or up to an 80 mm bore (2513.3 N) when the load grows. If the position must survive an air loss, add an external stop, because the stop screw is an end stop, not a mid-stroke lock. FA flange or LB foot mounts bolt to the ISO 21287 face, and this unit has no magnet, so order the -S code if CMSE / DMSE switches are planned.
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 ACEJ63X55-20 FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push is 2182.1 N and pull 2041.3 N; theoretical maximum is 317.9 kgf at 1.0 MPa. The -20 code gives a 20 mm adjustment window: an external stop screw shortens the 55 mm extend stroke to any value from 35 to 55 mm. It is an end stop only, so the piston still drifts if air is lost.
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 16 mm rod, fixed TPU bumpers at both ends, a 1/8" PT port and a female M10x1.5 rod thread. This version has no magnet; order the -S code to enable CMSE / DMSE switches for end-of-stroke detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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