Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50SB
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 70mm 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
- Stroke70 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 ACEJ63X70-50SB
A double acting ISO 21287 compact cylinder, the ACEJ63X70-50SB pairs a 63 mm bore with a 70 mm stroke that an external stop screw trims anywhere from 20 to 70 mm on site. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa, so it carries mid-size clamping and pressing work in a body that saves about 50% of the mounting length of an ISO 15552 profile cylinder.
The male rod thread (B code) and the fitted -S magnet make this variant drop-in ready: CMSE or DMSE switches read end positions directly on the hard-anodized aluminium body, while the 16 mm hard-chrome S45C rod and fixed TPU bumpers at both ends handle 30-500 mm/s cycling across 0.15-1.0 MPa (22-145 psi). For lift planning, the 1558.6 N push at 0.5 MPa equates to roughly 159 kg, so about 79 kg is a sensible vertical lift with a 2:1 margin.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50SB Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 70 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 ACEJ63X70-50SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×70 | 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 ACEJ63X70-50SB Is Used
Press-fit bushings into gearbox housings
With 1558.6 N push at 0.5 MPa (2182.1 N at 0.7 MPa), the 63 mm bore seats small bearings and bushings in automotive sub-assembly cells, and the 20-70 mm trim range lets technicians dial in the press depth without swapping cylinders.
Clamping aluminium extrusions on CNC fixtures
The short ISO 21287 body fits inside tight fixture plates where a full-length profile cylinder would foul the spindle envelope, and the male rod thread accepts I or Y knuckles for angled clamp arms.
Indexing pallets on a conveyor transfer unit
Because the -S magnet is fitted, CMSE or DMSE switches confirm extend and retract positions on the 70 mm stroke, giving PLC feedback for pallet-present checks at speeds up to 500 mm/s.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50SB the Right Cylinder?
Size against neighbours: the 50 mm bore delivers 981.7 N push at 0.5 MPa, while stepping up to 80 mm gives 2513.3 N - pick 63 mm when your load sits between roughly 600 and 950 N of real work, keeping about 60% of the 1558.6 N rating in reserve. The -50 window suits fixtures where the final stroke is tuned during commissioning rather than fixed at order time. Note the stop screw only shortens the extend stroke and is not a mid-stroke lock: on air loss the piston still drifts. FA flange or LB foot mountings bolt to the ISO 21287 face, and PT ports take 1/8" fittings.
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 ACEJ63X70-50SB FAQ
Bore 63 mm, stroke 70 mm with a 50 mm adjustment window (usable extend range 20-70 mm). Push is 1558.6 N and pull 1458.1 N at 0.5 MPa; at 0.7 MPa push is 2182.1 N and pull 2041.3 N; theoretical maximum is 317.9 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, port 1/8" PT, rod 16 mm with male thread, and the maximum standard stroke for this bore is 250 mm.
The ISO 21287 short-body design saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into guarded gantries and dense fixture plates. A fixed TPU bumper at each end absorbs end-of-stroke energy. This model carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches clip into the body slots for end-position sensing; FA flange and LB foot mountings bolt straight to the standard face.
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Standard models are processed and dispatched in 3-5 business days.
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