Airtac ACE Compact Cylinder ACE50X40B
The AirTAC Airtac ACE Compact Cylinder ACE50X40B is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 40mm 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
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.5
- 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 ACE Compact Cylinder ACE50X40B
This AirTAC ACE50X40B is a double acting compact cylinder built to ISO 21287, with a 50 mm bore and a 40 mm stroke. Its hard-anodized aluminium body and S45C hard-chrome plated rod deliver a push force of 981.7 N and a pull force of 881.2 N at 0.5 MPa, making it a solid choice for medium-duty automation tasks.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where a longer cylinder will not. For real work, plan on about 589 N of usable force at 0.5 MPa - that is roughly 60 kg of vertical lift with a 2:1 safety margin, so you can match it to actual part weights. The fixed TPU bumper at both ends absorbs end-of-stroke energy, and the male rod thread (B code) simplifies attachment of custom tooling.
Airtac ACE Compact Cylinder ACE50X40B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X40B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 40 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 ACE50X40B
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 ACE50X40B Is Used
Fixture Clamping
Use the ACE50X40B to clamp sheet-metal parts in a CNC drilling fixture. Its 981.7 N push force at 0.5 MPa holds the workpiece securely, and the compact body fits between the spindle and the guard.
Package Stop Gate
In a packaging line, this cylinder extends a stop gate to divert cartons on a conveyor. The 40 mm stroke is enough to block or release boxes, and the fixed TPU bumper prevents shock to the gate mechanism.
Press Ram for Small Parts
For a bench-top press that stamps small electrical contacts, the ACE50X40B provides a controlled 40 mm stroke. Its 1374.4 N push at 0.7 MPa delivers the force needed for light forming, and the male rod thread accepts a custom die holder.
Is the Airtac ACE Compact Cylinder ACE50X40B the Right Cylinder?
When sizing, compare this 50 mm bore with the 40 mm bore (push 628.3 N at 0.5 MPa) if you need less force, or step up to the 63 mm bore (push 1558.6 N at 0.5 MPa) for heavier loads. This model has a male rod thread (B) and a 1/8" port, with a max standard stroke of 250 mm. Since there is no -S code, this cylinder has no magnet, so CMSE or DMSE sensors cannot be mounted - order the -S version if you need position sensing. For mounting, FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets fit the ISO 21287 face directly.
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 ACE50X40B FAQ
At 0.5 MPa, the push force is 981.7 N and the pull force is 881.2 N. At 0.7 MPa, push is 1374.4 N and pull is 1233.7 N. The theoretical maximum force is 200.2 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi), and the proof pressure is 1.5 MPa (215 psi).
No, this ACE50X40B does not have the optional -S magnet, so it cannot be used with CMSE or DMSE switches. If you need position sensing, order the -S version (e.g., ACE50X40SB). The cylinder has a fixed TPU bumper at both ends, not an adjustable cushion, and it operates at speeds from 30-500 mm/s.
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