Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30B
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30B 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 ACEJ63X70-30B
The ACEJ63X70-30B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 70 mm stroke by up to 30 mm, giving a usable range of 40-70 mm on site. At 0.5 MPa this 63 mm bore pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into tight clamping fixtures and gantries where a full-length body will not fit.
The hard-anodized aluminium body carries a 16 mm S45C hard-chrome rod with a male thread (the B code), and a fixed TPU bumper at each end absorbs end-of-stroke energy. For vertical lifting, halving the 0.5 MPa push gives a practical margin, so this cylinder lifts about 79 kg vertically with room to spare. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it covers 30-500 mm/s. Note that no magnet is fitted; the optional -S code adds one for CMSE / DMSE switches.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30B Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30B |
|---|---|
| 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 ACEJ63X70-30B
| 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 ACEJ63X70-30B Is Used
Fixture clamping on CNC machining centres
The 40-70 mm adjustable window lets a jig builder dial in the exact clamp position per fixture, with 1558.6 N at 0.5 MPa holding aluminium housings firmly during milling.
Bench-top press for bearing insertion
About 79 kg of vertical lift equivalent gives a 2:1 margin when pressing small bearings into pump housings, and the TPU bumpers soften each end of the short 70 mm stroke.
Stopper gates on packaging lines
The compact body saves roughly half the mounting length of an ISO 15552 profile cylinder, so the stopper retracts flush under a narrow conveyor frame at up to 500 mm/s.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-30B the Right Cylinder?
At 1558.6 N push at 0.5 MPa, this 63 mm bore suits mid-heavy clamping and pressing. Step down to the 50 mm bore (981.7 N) for lighter jigs, or up to the 80 mm bore (2513.3 N) when the load needs more margin. The stop screw only sets the extend end position - it is not a mid-stroke lock, so on air loss the piston still drifts and a separate holding method is needed for suspended loads. FA flange or LB foot mountings bolt to the ISO 21287 face, and PT ports take standard fittings. If position feedback matters, order the -S variant so CMSE / DMSE switches can be used.
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 ACEJ63X70-30B FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push rises to 2182.1 N. The theoretical maximum is 317.9 kgf at 1.0 MPa. The extend stroke is adjustable from 70 mm down to 40 mm via the external stop screw (the -30 window), and the rod is a 16 mm male-threaded S45C hard-chrome rod with a 1/8" PT port.
It is an ISO 21287 compact cylinder: hard-anodized aluminium body, threaded aluminium covers, and a fixed TPU bumper at both ends - about 50% shorter in mounting length than an ISO 15552 profile cylinder. Sensing is not included by default; order the optional -S magnet code to enable CMSE / DMSE switches. FA flange and LB foot mountings, plus I and Y rod knuckles, 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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