Airtac AIRTAC SC125-160 Standard Cylinder SC125X125H
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X125H is a genuine double-acting standard air cylinder with a Ø125mm bore and 125mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke125 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X125H
The SC125X125H is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 125 mm standard stroke. Equipped with Viton (FKM) seals, this model is rated for high-temperature operation from 0 to +150 °C, making it suitable for autoclaves, foundries, and drying lines where standard seals would degrade. At 0.5 MPa it generates 6136 N push force and 5734 N pull force, rising to 11045 N push at the maximum operating pressure of 0.9 MPa.
This ISO 6430 class cylinder uses a 32 mm diameter piston rod with an M27×2 knuckle thread and PT1/2 ports. The adjustable air cushion at each end (28 mm cushion length) decelerates the piston smoothly, protecting end caps during high-speed cycling. The body length A is 203 mm, giving a total extended length of approximately 328 mm. The SC125X125H is a genuine AirTAC product built for demanding thermal environments where reliable force output must be maintained.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X125H Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X125H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 125 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 SC125X125H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×125 | 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 SC125X125H Is Used
High-Temperature Process Actuation
With Viton seals rated to 150 °C, the SC125X125H operates reliably in autoclave lid clamping, hot-press actuation, and drying-oven door mechanisms where standard NBR or TPU seals would fail prematurely.
Heavy Press & Clamping
Delivering over 11 kN of push force at 0.9 MPa, this cylinder suits hydraulic-press alternatives in medium-force clamping, riveting, and forming fixtures, especially where the work zone is heated.
Foundry & Glass Machinery
The 125 mm bore and heat-resistant seals handle mould-transfer cylinders, gate actuators, and glass-pressing stations. The adjustable cushion absorbs impact energy smoothly even under radiant heat loads common in melt-shop environments.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X125H the Right Cylinder?
Choose the SC125X125H when your application needs a force of roughly 6100 N at standard plant air pressure and must withstand ambient temperatures up to 150 °C. If your force requirement is lower, stepping down to the SC100 bore reduces push force to 3927 N at 0.5 MPa while saving space and air consumption. For higher force, the SC160 bore delivers 10053 N push at the same pressure. The 125 mm stroke is well within the 1500 mm maximum standard stroke for this bore, so no special stroke-length precautions are needed.
When replacing an existing cylinder, match five points: 125 mm bore, 125 mm stroke, PT1/2 port thread, the Viton seal designation (H suffix), and confirm whether your application uses a magnet (this model does not include the -S magnet). The SC series is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders; it replaces another AirTAC SC125 of the same configuration directly.
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 SC125X125H FAQ
At 0.5 MPa the cylinder produces 6136 N push and 5734 N pull. At 0.7 MPa push force rises to 8590 N, and at the maximum operating pressure of 0.9 MPa it reaches 11045 N push. The theoretical maximum at 1.0 MPa is 1251 kgf. The pull force is lower because the rod reduces the effective piston area on the retract side.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder of the same bore and stroke. It is not dimensionally interchangeable with ISO 15552 mounts or footprints. It directly replaces another AirTAC SC125 tie-rod cylinder with matching bore, stroke, PT1/2 ports, and Viton seals. The 125–250 mm bore SC models are built to the ISO 6430 class for tie-rod cylinders.
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