Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X55-30
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X55-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø32mm bore and 55mm 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
- Stroke55 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 ACEJ32X55-30
The ACEJ32X55-30 is a double acting ISO 21287 compact cylinder from AirTAC with an adjustable extend stroke: an external stop screw trims the 55 mm stroke by up to 30 mm on site, giving a usable range of 25-55 mm without swapping the cylinder. At 0.5 MPa the 32 mm bore delivers 402.1 N push and 345.6 N pull, rising to 563 N push at 0.7 MPa. In practice, plan on roughly 241 N of real work at 0.5 MPa, and for vertical duty the rod lifts about 41 kg at full push force, or about 20 kg with a 2:1 margin.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs, guards and gantry frames. A hard-anodized aluminium body carries an S45C hard-chrome plated 12 mm rod, a fixed TPU bumper sits at both ends, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). Note that this unit has no magnet fitted; order the optional -S code if you later need CMSE / DMSE switch sensing.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X55-30 Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X55-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 55 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 ACEJ32X55-30
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×55 | Stroke length in mm. |
| -30 | 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 ACEJ32X55-30 Is Used
Clamp fixture trimming
On a CNC milling fixture, the 30 mm window lets a technician dial the clamp stroke anywhere from 25 to 55 mm to suit different part heights, with 402.1 N of push holding aluminium blanks steady at 0.5 MPa.
Ejector on assembly tooling
The compact body fits inside a tight electronics-assembly gantry where a full-length profile cylinder will not, pushing finished PCB trays off a nest with about 241 N of usable force.
Box stop on a packaging line
As an extend-stop for cartons on a conveyor, the stop screw sets the exact protrusion between 25 and 55 mm, and the fixed TPU bumper quiets each end-of-stroke contact at speeds up to 500 mm/s.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X55-30 the Right Cylinder?
Size check: a 25 mm bore gives 245.4 N push at 0.5 MPa, so step up to this 32 mm bore if your load sits near 240 N; a 40 mm bore (628.3 N push) covers heavier clamping. The stop screw is a mechanical end stop for the extend stroke only, not a mid-stroke lock, so the piston still drifts if air is lost. FA flange and LB foot mountings bolt to the ISO 21287 face, and the female M8x1.25 rod thread accepts standard rod knuckles. If position feedback matters, specify the -S variant instead, since this model 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 ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X55-30 FAQ
At 0.5 MPa it pushes 402.1 N and pulls 345.6 N; at 0.7 MPa it pushes 563 N and pulls 483.8 N; theoretical maximum is 82 kgf at 1.0 MPa. The -30 code is a 30 mm adjustment window: an external stop screw shortens the 55 mm extend stroke by up to 30 mm, so the working range is 25-55 mm. It shortens the stroke only and acts as an end stop, not a mid-stroke lock.
It is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange and LB foot options on the standard face. The 32 mm bore uses a 1/8" port and a female M8x1.25 rod thread, and a fixed TPU bumper absorbs end-of-stroke energy at both ends. Sensing via CMSE / DMSE switches requires the optional -S magnet; this model has none fitted, so confirm from datasheet if sensing is needed later.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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