Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50S
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50S 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 ACEJ63X70-50S
The ACEJ63X70-50S is a double acting ISO 21287 compact cylinder with a 63 mm bore and a 70 mm stroke that an external stop screw trims on site. The -50 code sets a 50 mm adjustment window, so the extend stroke can be shortened anywhere in a 20-70 mm range without changing the cylinder. At 0.5 MPa it pushes with 1558.6 N and pulls with 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 roughly 935 N of usable work, which is about 95 kg of vertical lift with a 2:1 margin.
The hard-anodized aluminium body with an S45C hard-chrome plated 16 mm rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and machine frames. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be mounted anywhere along the body for end-of-stroke sensing. Fixed TPU bumpers absorb end-of-stroke energy at both ends, and the female M10x1.5 rod thread plus FA flange or LB foot mounting bolts straight onto standard ISO 21287 fixtures.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50S Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50S |
|---|---|
| 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 ACEJ63X70-50S
| 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 ACEJ63X70-50S Is Used
Press-fit bushing insertion
The 1558.6 N push at 0.5 MPa seats automotive bushings into control-arm housings, and the 20-70 mm adjustable range lets one cylinder serve several housing depths.
Carton hold-down on a packing line
Mounted LB-foot down over a conveyor, the 70 mm stroke clamps cartons during taping, with the fitted magnet and a DMSE switch confirming full clamp before the tape head fires.
Sample tray indexing in lab automation
The short ISO 21287 body fits inside a compact analyzer frame, pushing 96-well trays between stations at 30-500 mm/s with switch positions set by the stop screw.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-50S the Right Cylinder?
Size the load first: at 0.5 MPa this bore delivers 1558.6 N of push, enough for roughly 95 kg of vertical lifting with a 2:1 margin. If your load is lighter, the ACEJ50 at 981.7 N push may suffice; if it is heavier, step up to the ACEJ80 at 2513.3 N. Choose this model when the stroke must be set on site: the stop screw shortens the 70 mm extend stroke by up to 50 mm, giving a 20-70 mm working range. Remember the adjuster is a mechanical end stop only, not a mid-stroke lock, so the piston still drifts if air is lost. The -S magnet is fitted here, and FA flange or LB foot mounts plus I/Y rod knuckles match standard fixture faces.
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 ACEJ63X70-50S 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. For real work, plan on about 935 N (0.6 of push), which corresponds to roughly 95 kg of vertical lift with a 2:1 margin. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s.
An external stop screw shortens the 70 mm extend stroke by up to 50 mm, giving a usable 20-70 mm range; it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts on air loss. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches mount in the body slots for end-of-stroke detection. The fixed TPU bumpers at both ends absorb end-of-stroke energy, and FA flange or LB foot mounting bolts to the standard ISO 21287 face.
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