Airtac AIRTAC SC125-160 Standard Cylinder SC125X335S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X335S is a genuine double-acting standard air cylinder with a Ø125mm bore and 335mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke335 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X335S
The SC125X335S is a double-acting pneumatic cylinder delivering 6136 N push and 5734 N pull at 0.5 MPa, rising to 11045 N at 0.9 MPa. Its 335 mm stroke sits well within the 1500 mm maximum standard stroke for the 125 mm bore, making it a standard catalog item. The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for non-contact position feedback.
With a 32 mm piston rod, M27x2 rod thread, and PT1/2 ports, this tie-rod cylinder provides robust linear force for medium-to-heavy industrial tasks. The adjustable air cushion at each end decelerates the piston smoothly over a 28 mm cushion length, protecting end caps during high-cycle operation. Body length A is 203 mm, giving an extended length of approximately 538 mm. Operating pressure ranges from 0.15 to 1.0 MPa with standard TPU seals rated for -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X335S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X335S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 335 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 SC125X335S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×335 | 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 SC125X335S Is Used
Heavy Press & Clamping
Generates over 11 kN of clamping force at 0.9 MPa, ideal for holding large workpieces during welding, machining, or assembly operations where sensor confirmation of jaw position is critical.
Pallet Stop & Lift Gate
The 335 mm stroke and 6136 N push force reliably raise heavy pallets or actuate robust stop gates in logistics lines, with the magnetic piston enabling end-of-stroke detection for automated sortation.
Material Forming & Bending
Supplies consistent, high-force linear motion for sheet metal bending or composite press forming, where the adjustable cushion protects tooling and the sensor magnet confirms full retract before reload.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X335S the Right Cylinder?
Choose the SC125 bore when the SC100's 3927 N push at 0.5 MPa is marginal—stepping up to 125 mm provides a 56% force increase. If your application involves frequent side loads or a moment arm on the 335 mm stroke, pair this cylinder with an external guide rail or switch to a guided cylinder; the 32 mm rod, while substantial, can still experience bending stress under off-axis loading. For direct replacement, match bore (125 mm), stroke (335 mm), PT thread, the -S magnet option, and basic mounting configuration to an existing AirTAC SC125 tie-rod cylinder.
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 SC125X335S FAQ
At 0.5 MPa the theoretical push force is 6136 N and pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet on the piston, making the barrel compatible with AirTAC CMSG (reed), DMSG, or EMSG (solid-state) sensors. Simply clamp the sensor onto the tie-rod tube to detect piston position without additional brackets.
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