Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-50B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-50B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 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 ACEJ80X120-50B
The ACEJ80X120-50B is a double acting AirTAC compact cylinder built to ISO 21287, with an adjustable extend stroke: an external stop screw trims the 120 mm stroke by up to 50 mm on site, giving a usable range of 70-120 mm. At 0.5 MPa the 80 mm bore delivers 2513.3 N on the push stroke and 2356.2 N on the pull stroke, rising to 3518.6 N at 0.7 MPa. The hard-anodized aluminium body with an S45C hard-chrome-plated 20 mm rod keeps the assembly short enough to save about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses, clamping fixtures and gantries where a full-length body will not fit.
The male rod thread (B code) suits external rod accessories, and 1/8" ports feed the high flow this bore needs at speeds of 30-500 mm/s. Note that the stop screw is a mechanical end stop only: on air loss the piston still drifts, so it must never be relied on to hold a load in position.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-50B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-50B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 120 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 ACEJ80X120-50B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 ACEJ80X120-50B Is Used
Machine tool clamp fixture
On CNC fixtures the stop screw trims clamp travel per part family, and the short ISO 21287 body fits inside guard housings where a longer profile cylinder cannot be installed.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-50B the Right Cylinder?
The 50 mm adjustment window lets one cylinder serve several product widths within a 70-120 mm stroke, trimming setup time on changeovers. Mount it with FA flange or LB foot hardware on the ISO 21287 face, add I or Y rod knuckles for the male-threaded rod, and order the optional -S magnet code if you later want CMSE / DMSE switch position sensing; this model without -S carries 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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-50B FAQ
At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa it pushes 3518.6 N and pulls 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 120 mm extend stroke by up to 50 mm, so the working range is 70-120 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is 1/8" PT.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, S45C hard-chrome-plated 20 mm rod, threaded aluminium covers and a fixed TPU bumper at both ends to absorb end-of-stroke energy; the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder. Mounting options include FA flange and LB foot plus I/Y rod knuckles on the male-threaded rod. Position sensing requires the optional -S magnet code, which enables CMSE / DMSE switches; as ordered here without -S, no magnet is fitted and no sensor can be mounted.
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