Airtac ACE Compact Cylinder ACE50X90SB
The AirTAC Airtac ACE Compact Cylinder ACE50X90SB is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 90mm 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.
- BoreØ50 mm
- Stroke90 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.5
- CushionFixed TPU bumper (both ends)
About the Airtac ACE Compact Cylinder ACE50X90SB
The ACE50X90SB is a double acting ISO 21287 compact cylinder, pushing 981.7 N and pulling 881.2 N at 0.5 MPa. Its short body takes about 50% less mounting length than an ISO 15552 profile cylinder, letting it fit into tight jigs and guards where a full-length unit will not. With the optional -S magnet fitted, this model works with CMSE or DMSE reed and solid-state switches for reliable position sensing.
A practical rule for real work: plan for about 60% of the rated push, so roughly 589 N usable at 0.5 MPa, which lifts about 60 kg vertically with a 2:1 safety margin. The hard-anodized aluminium body and S45C hard-chrome rod resist wear in continuous cycling. The fixed TPU bumper at each end absorbs energy, but it does not lock or hold a load, so use a rod lock or pilot check valve if the load must stay put when air is off.
Airtac ACE Compact Cylinder ACE50X90SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X90SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE50X90SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×90 | Stroke length in mm. |
| 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 ACE Compact Cylinder ACE50X90SB Is Used
Fixture Clamping
Clamp small parts in a CNC fixture with 981.7 N push at 0.5 MPa, using the compact body to fit under a spindle guard where a longer cylinder would not clear.
Carton Ejection
Push finished cartons off a conveyor onto a chute with 881.2 N pull at 0.5 MPa, cycling at up to 500 mm/s to keep up with a packaging line.
Stop Gate
Actuate a stop gate on a pallet conveyor, using the 90 mm stroke to raise and lower a blocker, with the optional -S magnet triggering a CMSE switch to confirm position.
Is the Airtac ACE Compact Cylinder ACE50X90SB the Right Cylinder?
For a lighter duty, the ACE40X90 (628.3 N push at 0.5 MPa) saves space and cost, while the ACE63X90 (1558.6 N push at 0.5 MPa) gives more force if your tooling needs it. Since this model has the -S magnet, order CMSE or DMSE switches to detect the piston position. The male rod thread (B) suits direct coupling to a load; if you need a clevis or flange, the FA, FB, LB, CA, CB, CR, SDB, and FTC mounts bolt to the ISO 21287 face. Remember, this cylinder does not hold position without air, so add external locking for vertical or drifting loads.
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 ACE Compact Cylinder ACE50X90SB FAQ
At 0.5 MPa, push is 981.7 N and pull is 881.2 N. At 0.7 MPa, push rises to 1374.4 N and pull to 1233.7 N. The theoretical maximum force is 200.2 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa (22-145 psi), and speed range is 30-500 mm/s.
It follows ISO 21287, so its body is about 50% shorter than an ISO 15552 profile cylinder, saving space in tight machinery. The fixed TPU bumper at each end softens the stop, but it is not adjustable and does not hold a load. For position holding, add a rod lock or pilot check valve.
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