Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20B
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20B is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 75mm 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
- Stroke75 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 ACEJ63X75-20B
The ACEJ63X75-20B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. Its 63 mm bore delivers 1558.6 N pushing and 1458.1 N pulling at 0.5 MPa, rising to 2182.1 N at 0.7 MPa, with a theoretical peak of 317.9 kgf at 1.0 MPa. The -20 code means an external stop screw trims the 75 mm stroke down by up to 20 mm on site, giving a usable extend range of 55-75 mm without changing the valve or plumbing.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight machine frames and guarding. A hard-anodized aluminium body with an S45C hard-chrome plated 16 mm rod resists wear, and fixed TPU bumpers at both ends absorb end-of-stroke shock. As a rule of thumb, plan on roughly 935 N of real work at 0.5 MPa (about 60% of the push rating), which corresponds to lifting around 79 kg vertically with a 2:1 margin. FA flange, LB foot and rod knuckles bolt to the standard ISO 21287 face; the optional -S magnet enables CMSE / DMSE switches, but this unit ships without a magnet.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20B Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 75 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 ACEJ63X75-20B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×75 | 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 ACEJ63X75-20B Is Used
Press-fit bushings into housings
With 1558.6 N at 0.5 MPa, the 63 mm bore seats automotive bushings and bearings in assembly benches, while the 55-75 mm adjustable range lets technicians dial the ram stop to each fixture.
Pallet lift-and-lower stations
Lifting about 79 kg vertically with a 2:1 margin, this cylinder suits packaging-line pallet or tray elevators where the 75 mm stroke is trimmed to match a fixed transfer height.
Conveyor gate and diverter actuation
The compact body, about 50% shorter than an ISO 15552 profile cylinder, mounts beside narrow conveyor frames to swing divert gates, with the stop screw set so the gate never over-travels.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20B the Right Cylinder?
Size against neighbours: the 50 mm bore pushes 981.7 N at 0.5 MPa while the 80 mm bore reaches 2513.3 N, so 63 mm is the middle choice when 50 mm is marginal and 80 mm is oversized. If your part weighs near 79 kg, this bore gives a comfortable 2:1 vertical-lift margin at 0.5 MPa. Remember 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 if the load must stay put. Order the -S code if you need CMSE / DMSE position switches, and pick FA or LB mounting plus I or Y rod knuckles to match your fixture. Note the stroke is only trimmed shorter; it cannot extend past 75 mm.
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 ACEJ63X75-20B 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, with a theoretical maximum of 317.9 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: an external stop screw shortens the 75 mm extend stroke by up to 20 mm, so the working range is 55-75 mm. It runs double acting on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a 1/8" PT port and a male rod thread on the 16 mm rod.
It 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 fixed TPU bumpers at both ends to soften end-of-stroke impact. FA flange and LB foot mountings plus I/Y rod knuckles attach to the standard ISO 21287 face. Switches are possible only with the optional -S magnet code, which allows CMSE / DMSE reed or solid-state switches; this model, ordered without S, carries no magnet, so no sensor can be mounted on it.
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