Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40SB
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40SB 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 ACEJ63X70-40SB
The ACEJ63X70-40SB 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 -40 code gives a 40 mm window, so the extend stroke is set anywhere from 30 to 70 mm without changing the cylinder. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa, with a theoretical peak of 317.9 kgf at 1.0 MPa. The male rod thread (B code) bolts straight into male-threaded tooling, and the fitted -S magnet lets CMSE or DMSE switches report end positions.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters in cramped packaging frames and weld-cell fixtures. A practical sizing rule: treat roughly 935 N (about 0.6 of the push force) as the usable working force at 0.5 MPa, which corresponds to lifting about 79 kg vertically with a 2:1 margin. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and a fixed TPU bumper sits at each end of the hard-anodized aluminium body with its S45C hard-chrome rod.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40SB Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40SB |
|---|---|
| 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 ACEJ63X70-40SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -40 | 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 ACEJ63X70-40SB Is Used
Carton press-down station
The 30-70 mm trimmed stroke tops a carton-sealing head on a packaging line, where the 1558.6 N push at 0.5 MPa closes flaps without crushing, and the short body fits under a low guard.
Fixture clamping on a machining table
Male rod thread engages a clamping lever directly; trimming the stroke to 30 mm keeps the clamp retracted clear of swarf, and CMSE switches confirm the clamped position.
Pallet-stacker gate latch
With about 79 kg vertical-lift equivalent at a 2:1 margin, the bore easily drives a heavy latch or gate in warehouse equipment, with the 40 mm window matching latch travel.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X70-40SB the Right Cylinder?
At 1558.6 N push at 0.5 MPa this 63 mm bore sits well above the 50 mm bore (981.7 N) and below the 80 mm bore (2513.3 N), so choose it when a 50 mm unit is marginal and an 80 mm unit is oversized. Note that the stop screw is a mechanical end stop for the extend stroke only - on air loss the piston drifts, so add a separate valve or lock if the load must be held. FA flange or LB foot mountings, I/Y rod knuckles and the fitted -S magnet for CMSE/DMSE switches complete the package; 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 ACEJ63X70-40SB 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, with a theoretical maximum of 317.9 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 70 mm extend stroke by up to 40 mm, giving a usable range of 30-70 mm. It is a mechanical end stop, not a mid-stroke lock - on air loss the piston still drifts.
It is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends. FA flange and LB foot mountings plus I/Y rod knuckles bolt to the standard face, the rod end is male thread, and the fitted -S magnet accepts CMSE or DMSE reed or solid-state switches for end-position sensing.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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