Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X250-50B
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X250-50B is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 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 ACEJ63X250-50B
A double acting ISO 21287 compact cylinder, the ACEJ63X250-50B pairs a 63 mm bore with a 250 mm stroke and a 50 mm adjustment window: an external stop screw trims the extend stroke anywhere between 200 and 250 mm without changing parts. 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. The male rod thread (B code) bolts straight into standard tooling.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses, gantries and guarding where a full-length body will not fit. A hard-anodized aluminium barrel runs against an S45C hard-chrome plated 16 mm rod, with fixed TPU bumpers at both ends. Note that this unit carries no magnet, so CMSE or DMSE switches cannot be read on it; order the -S variant if position sensing is needed. Running 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, its 1558.6 N push works out to roughly 935 N of practical working force, about 95 kg of vertical lift with a sensible margin.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X250-50B Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X250-50B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 250 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 ACEJ63X250-50B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -50 | 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 ACEJ63X250-50B Is Used
Bench-top press and staking
Around 2182.1 N at 0.7 MPa suits staking pins into aluminium housings or light press-fitting of bushings, with the 50 mm window letting you set the exact top-of-stroke depth per part.
Pallet lift-and-lower stations
The 63 mm bore lifts roughly 95 kg vertically with margin, ideal for raising palletized trays or tote bins at conveyor transfer points in food and beverage plants.
Clamping on machining fixtures
Machining centres and CNC jigs use the 200-250 mm adjustable reach to clamp castings against hard stops, with FA flange mounting bolting directly to the fixture plate.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X250-50B the Right Cylinder?
At 63 mm bore this sits in the mid-heavy class: 1558.6 N push at 0.5 MPa, versus 981.7 N from a 50 mm bore and 2513.3 N from an 80 mm bore, so step down or up depending on your fixture load. The stop screw is a mechanical end stop for the extend stroke only, not a mid-stroke lock, so the rod can still drift if air is lost. Mount with FA flange or LB foot on the ISO 21287 face, add I or Y rod knuckles to suit the male thread, and remember the optional -S magnet is what enables CMSE / DMSE switch tracking.
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 ACEJ63X250-50B 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 -50 code gives a 50 mm adjustment window: an external stop screw shortens the 250 mm extend stroke to any length from 200 to 250 mm. It is a mechanical end stop, not a mid-stroke brake, so the load is not held if air pressure drops. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, with a 1/8" port and male rod thread.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and fixed TPU bumpers absorb end-of-stroke shock at both ends. This model has no magnet fitted, so no CMSE or DMSE switch can be used; choose the -S version for that. FA flange, LB foot and FTC brackets plus I and Y rod knuckles all mount on the standard ISO 21287 face.
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