Airtac ACE Compact Cylinder ACE50X125SB
The AirTAC Airtac ACE Compact Cylinder ACE50X125SB is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke125 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 ACE50X125SB
This AirTAC ACE50X125SB is a double acting ISO 21287 compact cylinder with a 50 mm bore and 125 mm stroke. It delivers 981.7 N of push force at 0.5 MPa, so it suits medium-duty automation tasks where space is tight. The hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, letting you fit it into compact jigs and guarded zones. The S45C steel rod is hard-chrome plated for wear resistance, and the fixed TPU bumper at each end absorbs end-of-stroke impact without needing adjustment.
With the optional -S magnet fitted, this model works with CMSE or DMSE reed and solid-state switches for reliable position sensing. For a real-world load, plan for about 60 kg of safe vertical lift at 0.5 MPa, since a 2:1 margin is wise for moving parts. The 1/8" port and M10x1.5 male rod thread make it easy to plumb and connect, and the operating range is 0.15-1.0 MPa (22-145 psi) at speeds from 30 to 500 mm/s.
Airtac ACE Compact Cylinder ACE50X125SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X125SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 125 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 ACE50X125SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | 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.
Where the Airtac ACE Compact Cylinder ACE50X125SB Is Used
Compact Jig Clamping
Use the ACE50X125SB to clamp small parts in a CNC fixture where the short ISO 21287 body fits under a guard. Its 981.7 N push at 0.5 MPa holds aluminum workpieces firmly during drilling or light milling.
Sorting Gate Actuator
Mount this cylinder on a packaging conveyor to divert boxes into different lanes. The 125 mm stroke moves a lightweight gate quickly, and the optional -S magnet lets a CMSE switch confirm the gate position for PLC logic.
Test Rig Pusher
In a quality lab, this cylinder pushes a test probe against a component at a controlled speed. The fixed TPU bumper prevents shock at stroke end, and the 1/8" port connects easily to a regulated air supply for repeatable force application.
Is the Airtac ACE Compact Cylinder ACE50X125SB the Right Cylinder?
When sizing, compare this 50 mm bore unit with the 40 mm bore, which pushes 628.3 N at 0.5 MPa, or step up to the 63 mm bore for 1558.6 N of push. For this 125 mm stroke, the ACE50X125SB fits applications needing moderate travel and force without the bulk of a longer cylinder. Since it is double acting, it extends and retracts with air, but it will not hold a load if air pressure is lost; use a rod lock or pilot check valve for safety-critical positions. The male rod thread (B) simplifies mounting to clevises or rod knuckles, and the optional magnet (S) enables sensor feedback for automated cycles.
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 ACE50X125SB 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 rises to 1374.4 N and pull to 1233.7 N. The theoretical maximum force is 200.2 kgf at 1.0 MPa. These figures are for the 50 mm bore with a 16 mm rod.
The ACE50X125SB body is about 50% shorter than an ISO 15552 profile cylinder, so it saves valuable mounting space in tight enclosures. It uses a fixed TPU bumper at both ends to absorb impact, and the optional -S magnet enables CMSE or DMSE sensors for position feedback. The hard-anodized aluminium body and chrome-plated steel rod ensure long service life in industrial environments.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
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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