Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø32mm 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.
- BoreØ32 mm
- Stroke120 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- 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 ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S
A double acting ISO 21287 compact cylinder, the ACEJ32X120-50S pairs a 32 mm bore with a 120 mm stroke that an external stop screw trims by up to 50 mm on site, giving a usable extend range of 70-120 mm. At 0.5 MPa it pushes 402.1 N and pulls 345.6 N, rising to 563 N at 0.7 MPa, with a theoretical peak of 82 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome plated rod run at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. As a rough rule of thumb, plan for about 241 N of real work at 0.5 MPa, which lifts roughly 20 kg vertically with a 2:1 margin. The -S code on this model means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be mounted in the body slots.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 120 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 32 | 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 (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 ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S Is Used
Fixture clamping on CNC pallets
The 70-120 mm adjustable extend range lets one cylinder serve several pallet fixtures: trim the stop screw to the clamp height instead of re-plumbing, with 402.1 N push at 0.5 MPa holding parts against hard stops.
Product pusher on packaging lines
With about 241 N of usable force at 0.5 MPa, the 32 mm bore nudges cartons or trays off a conveyor, and the fitted magnet with CMSE switches confirms rod extension before the next cycle starts.
Sample press in lab automation
Compact benchtop analyzers benefit from the short body, roughly half the mounting length of an ISO 15552 profile cylinder, while the 120 mm stroke trimmed down to 70 mm fits shallow sample wells.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S the Right Cylinder?
At 402.1 N push at 0.5 MPa this 32 mm bore sits between the 25 mm bore (245.4 N) and the 40 mm bore (628.3 N), so step up to 40 mm if your tooling needs more than about 240 N of working force. The stop screw only shortens the extend stroke within the ordered 50 mm window and acts as an end stop, not a mid-stroke lock - on air loss the piston still drifts, so add a valve or external stop if you must hold position. FA flange, LB foot and I/Y rod knuckles bolt to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report end positions.
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 ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-50S FAQ
At 0.5 MPa it pushes 402.1 N and pulls 345.6 N; at 0.7 MPa push is 563 N and pull 483.8 N; theoretical maximum is 82 kgf at 1.0 MPa. The -50 code is 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. It shortens the stroke only and never extends it past 120 mm.
The ISO 21287 body is hard-anodized aluminium with threaded aluminium covers, about 50% shorter in mounting length than an ISO 15552 profile cylinder. A fixed TPU bumper at each end absorbs end-of-stroke energy; it is not adjustable and never locks or holds a load. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount in the body slots. Ports are 1/8" PT, the rod end is female M8x1.25, and FA or LB mounting bolts to the standard face.
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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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