
The AirTAC Airtac ACE Compact Cylinder ACE50X45SB is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 45mm 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.
This AirTAC ACE50X45SB is a double acting compact cylinder that uses air to both extend and retract its 16 mm hard-chrome rod. The 50 mm bore delivers a solid 981.7 N push force at 0.5 MPa, so it can handle real work in tight spaces. Its ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting you fit automation into jigs and guards where a longer cylinder simply will not go.
The body is hard-anodized aluminium alloy with a roller-burnished bore for wear resistance, and the fixed TPU bumper absorbs end-of-stroke energy. For a safe working load, plan on about 589 N (roughly 60 kg) of real work at 0.5 MPa, not the full 981.7 N rating. This model carries the optional -S magnet, so you can mount CMSE or DMSE switches to confirm rod position, and the male rod thread (B) simplifies direct coupling.
| Model | Airtac ACE Compact Cylinder ACE50X45SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 45 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.
| 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.
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | Bore size in mm. |
| ×45 | 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.
Use this 50 mm bore unit to clamp a workpiece in a CNC milling fixture. The 981.7 N push at 0.5 MPa holds parts firmly, and the short body fits under a guard where a longer cylinder would not.
Mount this cylinder on a conveyor line to raise a stop gate that halts a 40 kg carton. The 45 mm stroke is enough to lift the gate, and the optional -S magnet lets a sensor confirm the gate is up.
In a benchtop press, this cylinder can push a stamping die down to form a small metal bracket. The 1374.4 N push at 0.7 MPa gives the force needed, and the compact body fits a low-profile press frame.
When sizing, compare this 50 mm bore against a 40 mm bore that pushes 628.3 N at 0.5 MPa, or step up to a 63 mm bore that pushes 1558.6 N at 0.5 MPa. For a 45 mm stroke, this unit fits applications needing a short, powerful push in a compact envelope. Remember, a plain ACE does not hold its position when air is lost, so use a rod lock or pilot check valve if you need to hold a load. The 1/8" port matches standard fittings, and the optional -S magnet is already fitted here for sensor feedback.
Quick checklist
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 speed range is 30-500 mm/s.
The ACE50X45SB has a short body that saves about 50% of the mounting length of an ISO 15552 profile cylinder. This makes it ideal for mounting inside machine guards, on gantries, or in fixtures where space is limited. The body is hard-anodized aluminium, and the fixed TPU bumper absorbs end-of-stroke impact. The optional -S magnet is fitted on this model, so you can use CMSE or DMSE switches for position sensing.
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