Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X45-40
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X45-40 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 45mm 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
- Stroke45 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 ACEJ63X45-40
The ACEJ63X45-40 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 45 mm stroke by up to 40 mm, giving a usable range of 5-45 mm without changing the cylinder. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa, with a theoretical maximum of 317.9 kgf at 1.0 MPa. As a rule of thumb, plan on about 935 N of real work at 0.5 MPa, which is roughly 95 kg of usable vertical thrust.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this 63 mm bore unit slots into tight clamping fixtures and gantry frames where a full-length body cannot. A fixed TPU bumper at each end absorbs end-of-stroke impact, and the hard-anodized aluminium body with an S45C hard-chrome plated 16 mm rod stands up to continuous cycling. Note that this model has no magnet fitted; order the optional -S code if you need CMSE or DMSE switch sensing. The adjuster is a mechanical end stop only - on air loss the piston still drifts, so it is not a load-holding brake.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X45-40 Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X45-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 45 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 ACEJ63X45-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×45 | 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 ACEJ63X45-40 Is Used
Clamp fixture on a machining center
Holding steel housings against a jig face needs steady force, not long travel. The 1558.6 N push at 0.5 MPa clamps reliably, and the stop screw lets the setter dial the clamp position within the 40 mm window as the fixture wears or the part changes.
Short-stroke press station for bearing insertion
Pressing small bearings into housings demands controlled force over a few millimetres. The 5-45 mm adjustable range matches insertion depth exactly, and the 2182.1 N push at 0.7 MPa handles stubborn interference fits without stepping up to a bigger bore.
Packaging line divert and stop gates
Stopping cartons or diverting product on a bottling line needs a compact body that fits between conveyor frames. The short ISO 21287 build saves about 50% of the mounting length of an ISO 15552 profile cylinder, and the 1458.1 N pull at 0.5 MPa retracts gates briskly at up to 500 mm/s.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X45-40 the Right Cylinder?
Size the job against real forces: at 0.5 MPa the 63 mm bore delivers 1558.6 N push, while a 50 mm bore gives 981.7 N and an 80 mm bore gives 2513.3 N. If your clamp or press load sits near 900-950 N, this bore keeps a sensible margin; step down to 50 mm for lighter work or up to 80 mm for heavier forming. The 40 mm adjustment window suits stations where the exact stop position is tuned on the machine. Mounting: FA flange, LB foot and FTC brackets bolt to the ISO 21287 face, with I and Y rod knuckles on the M10x1.5 female rod thread. Air supply: 0.15-1.0 MPa (22-145 psi), filtered to 40 um, speed 30-500 mm/s.
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 ACEJ63X45-40 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; the theoretical maximum is 317.9 kgf at 1.0 MPa. The -40 code means an external stop screw can shorten the 45 mm extend stroke by up to 40 mm, so the working range is 5-45 mm. It runs double acting on air at 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, with a fixed TPU bumper at both ends. The stop is a mechanical end stop, not a mid-stroke lock - on air loss the piston still drifts.
It is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow machine frames and tight fixtures. The hard-anodized aluminium body carries magnet slots, but this model has no magnet fitted - sensing requires the optional -S magnet code, which enables CMSE or DMSE reed or solid-state switches. Mounting options include FA flange, LB foot and FTC brackets, and the 16 mm rod ends in a female M10x1.5 thread. Air porting is 1/8" PT, sized by the 63 mm bore.
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