Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S is a genuine double-acting standard air cylinder with a Ø125mm bore and 1800mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke1800 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S
The AirTAC SC125X1800S is a large-bore, double-acting tie-rod cylinder engineered for long-stroke linear applications requiring substantial force. With a 125 mm bore and an extended 1800 mm stroke, this model delivers a push force of 6136 N at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa, making it a robust actuator for heavy industrial tasks.
This non-standard stroke cylinder features a 32 mm diameter piston rod with an M27x2 knuckle thread and an adjustable air cushion length of 28 mm to decelerate the high inertia load smoothly. The built-in magnet (denoted by the 'S' suffix) allows for direct mounting of CMSG, DMSG, or EMSG sensors along the barrel for precise, contactless position feedback. Its body length A is 203 mm, and the PT1/2 port connection ensures reliable pneumatic integration.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 1800 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 | Adjustable, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (approx.) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×1800 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S Is Used
Long-Reach Material Pusher
The 1800 mm stroke and 11045 N force at 0.9 MPa are ideal for pushing heavy pallets or large components off a conveyor line, where a long reach is essential.
Heavy-Duty Clamping System
Provides the high clamping force needed for large weldments or structural assemblies in a jig, with the built-in magnet confirming full extension via a CMSG sensor.
Industrial Press Feed
Transfers heavy steel sheets or blanks into a stamping press, utilizing the adjustable cushion to manage the high kinetic energy of the load over the 1.8-meter travel.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S the Right Cylinder?
Select the SC125 for applications where the SC100's 3927 N push force at 0.5 MPa is insufficient. For an 1800 mm stroke, external guiding is critical; the long, unsupported 32 mm rod is susceptible to bending and side-load damage. Always use an external guide rail or rod support to ensure the load is carried axially and to prevent premature seal and bearing wear. For replacement, match exactly: 125 mm bore, 1800 mm stroke, PT1/2 port thread, the built-in magnet (-S), and basic mounting.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X1800S FAQ
The theoretical push force at 0.5 MPa is 6136 N. At the maximum operating pressure of 0.9 MPa, the push force is 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
For any stroke of 300 mm or more, and especially at 1800 mm, you must use an external guide to prevent side loads from bending the 32 mm rod. The cylinder should only handle axial thrust; a misaligned or unguided load will cause the rod to buckle and damage the bearing and seals.
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