Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30SB
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30SB 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 ACEJ63X70-30SB
The ACEJ63X70-30SB is a double acting ISO 21287 compact cylinder with a 63 mm bore and a 70 mm stroke that an external stop screw can trim anywhere in a 30 mm window, giving a usable extend range of 40-70 mm. 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. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, this force class drops into tight welding jigs and press fixtures that cannot house a full-length body.
This -S variant carries the optional magnet, so CMSE / DMSE reed or solid-state switches can be clamped anywhere along the body for end-of-stroke signals, and the B code gives a male rod thread on the 16 mm rod. As a rule of thumb, plan on roughly 935 N (about 95 kg of force) of real work at 0.5 MPa, and for vertical lifts halve the 159 kg theoretical lift equivalent to size about 79 kg of part weight with margin. A fixed TPU bumper at each end absorbs end-of-stroke energy, the hard-anodized aluminium body runs on a hard-chrome S45C rod, and FA flange or LB foot mounts bolt straight to the ISO 21287 face.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30SB Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30SB |
|---|---|
| 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 ACEJ63X70-30SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -30 | 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 ACEJ63X70-30SB Is Used
Welding fixture clamping
The 1558.6 N push at 0.5 MPa clamps steel brackets in automotive weld cells, and the 40-70 mm adjustable range lets one cylinder serve different bracket heights without re-plumbing.
Small press and staking station
With 2182.1 N available at 0.7 MPa, the 63 mm bore stakes terminals or presses bearings in electronics assembly, while the short body fits inside a guarded C-frame.
Pallet ejector on conveyor lines
The 70 mm stroke kicks filled cartons off a roller conveyor, and CMSE switches on the -S magnet confirm home and eject positions for the PLC.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30SB the Right Cylinder?
At 63 mm bore this sits in the mid-heavy class: a 50 mm bore delivers 981.7 N push at 0.5 MPa while an 80 mm bore reaches 2513.3 N, so pick the 63 when your jig needs roughly 1.5 kN without stepping up in body size. The stop screw only shortens the extend stroke and is a mechanical end stop, not a mid-stroke lock, so on air loss the piston still drifts and a separate holding valve is needed for suspended loads. Order FA or LB mounting to match the fixture, and remember the magnet here is the -S option this model already carries; a plain ACEJ63X70-30B would have no magnet.
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 ACEJ63X70-30SB FAQ
This 63 mm bore model pushes 1558.6 N and pulls 1458.1 N at 0.5 MPa, and 2182.1 N / 2041.3 N at 0.7 MPa, with a theoretical maximum of 317.9 kgf at 1.0 MPa. It is double acting with a 70 mm stroke adjustable down to 40 mm via the -30 stop screw, runs 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, 1/8" ports, male rod thread, and a fixed TPU bumper at both ends.
An external stop screw on the front cover shortens the extend stroke by up to 30 mm, so you set any extend length between 40 and 70 mm with a wrench on site; it cannot lengthen the stroke past 70 mm. Because this model carries the optional -S magnet, CMSE or DMSE reed and solid-state switches mount in the body slots for end-of-stroke detection. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard ISO 21287 mounting face.
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