Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 125mm 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.
- BoreØ80 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM12×1.75
- 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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B
The ACEJ80X125-50B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 125 mm stroke by up to 50 mm on site, giving a usable range of 75-125 mm without changing the cylinder. The male rod thread (B code) on the 20 mm rod bolts straight to tooling plates and knuckles.
The hard-anodized aluminium body with a hard-chrome S45C rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses, gantries and guarding where a full-length body will not fit. FA flange, LB foot and I/Y knuckles mount on the standard face; the optional -S magnet enables CMSE / DMSE switches.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M12×1.75 |
| 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 300 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 (Ø80mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 2356 N |
| 0.7 MPa | 3299 N |
| Max (@1.0 MPa) | 481 kgf |
ACEJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 (double rod, 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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B Is Used
Pallet gate actuation
Swing or lift gates on a warehouse palletizing cell, where the short body fits inside the guard frame and the male rod thread picks up the gate arm directly.
Fixture clamp on a machining line
Clamps steel castings on a CNC fixture at about 128 kg vertical-lift equivalent force, with LB foot mounting and the optional -S magnet confirming clamp position via a DMSE switch.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B the Right Cylinder?
Size against load: the 63 mm bore pushes 1558.6 N at 0.5 MPa, while the 100 mm bore reaches 3927.0 N, so this 80 mm unit at 2513.3 N sits squarely in the mid-heavy class for clamping and pressing. If the machine needs position feedback, order the -S variant so CMSE / DMSE switches can ride the body slots. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve where a load must stay put. FA flange or LB foot plus the male rod thread cover most fixture builds.
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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-50B FAQ
At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa push is 3518.6 N and pull 3298.7 N, with a theoretical maximum of 512.6 kgf at 1.0 MPa. The -50 code sets a 50 mm adjustment window: an external stop screw shortens the 125 mm extend stroke by up to 50 mm, so the working range is 75-125 mm. It runs double acting on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, with a fixed TPU bumper at both ends.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, freeing space in guarded cells and tight fixtures. FA flange, LB foot and I/Y rod knuckles bolt to the standard face, and the 1/8" PT ports suit typical plant air lines. Position sensing requires the optional -S magnet ordered with the cylinder; without that code no magnet is fitted and CMSE / DMSE switches cannot be used.
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