
The AirTAC Airtac ACE Compact Cylinder ACE32X125SB is a genuine double acting ISO 21287 compact air cylinder with a Ø32mm bore and 125mm 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 ACE32X125SB is a double acting ISO 21287 compact cylinder with a 32 mm bore and 125 mm stroke, pushing 402.1 N and pulling 345.6 N at 0.5 MPa. Its short body takes up about 50% less mounting length than an ISO 15552 profile cylinder, so it fits into tight machine frames where a full-length unit will not. The optional -S magnet is fitted here, letting you add CMSE or DMSE reed or solid-state switches for reliable end-position sensing.
For real-world work, plan on roughly 24.6 kg of usable force at 0.5 MPa (about 0.6 times the 402.1 N rating), which is a safe margin for most jigs and light presses. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the hard-anodized aluminium body with a hard-chrome S45C rod resists wear in continuous cycling. This model has a male rod thread (B code) and a 1/8" port, ready for standard PT fittings.
| Model | Airtac ACE Compact Cylinder ACE32X125SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| 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.
| 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.
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 the 402.1 N push at 0.5 MPa to clamp small parts in a CNC milling fixture, where the compact body fits under the spindle guard. The 125 mm stroke allows clearance for loading and unloading, and the magnet signals the clamp position to the machine controller.
Actuate a diverter gate on a conveyor that sorts boxes by size, using the 345.6 N pull force to retract the gate quickly. The short body mounts between conveyor rails without protruding, and the fixed TPU bumper prevents harsh stops at high cycle rates up to 500 mm/s.
Drive a small press ram for inserting bushings into plastic housings, relying on the 563 N push at 0.7 MPa for consistent force. The 125 mm stroke gives room for part placement, and the male rod thread (M8x1.25) connects directly to a custom tool head.
When sizing, compare this 32 mm bore with the 25 mm bore (245.4 N push at 0.5 MPa) if you need less force, or step up to the 40 mm bore (628.3 N push at 0.5 MPa) for heavier loads. The 125 mm stroke is within the 200 mm standard maximum for this bore, so no custom order is needed. Since this cylinder has the -S magnet, it works directly with CMSE or DMSE switches; if you did not need sensing, you could omit the S code. For mounting, choose FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, or FTC brackets to match your fixture. Remember, this is a double-acting cylinder, so it will not hold a load when air is removed - use a rod lock or pilot check valve if position holding is required.
Quick checklist
At 0.5 MPa, the push force is 402.1 N and the pull force is 345.6 N. At 0.7 MPa, push is 563 N and pull is 483.8 N. The theoretical maximum force is 82 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).
The ACE32X125SB body is about 50% shorter than an ISO 15552 profile cylinder, so it saves space in tight enclosures and reduces the overall machine footprint. It has a fixed TPU bumper at both ends to absorb impact, and the optional -S magnet (fitted here) allows mounting CMSE or DMSE switches for position feedback. The operating speed is 30-500 mm/s, and the temperature range is -20 to +70 C.
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