Airtac SGC Standard Cylinder SGC250X20STC
The AirTAC Airtac SGC Standard Cylinder SGC250X20STC is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 20mm stroke, G1 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ250 mm
- Stroke20 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
- 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 SGC Standard Cylinder SGC250X20STC
Delivering 24543 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles the heaviest automation tasks. Four steel tie rods clamp the aluminum barrel to the covers for high rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. Because it is dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures.
Equipped with a built-in piston magnet, this variant supports CMSG, DMSG, and EMSG switches for position sensing. It features a 50 mm rod, a G1 air port, and a 60 mm adjustable air cushion at both ends. For real-world sizing, plan for about 14726 N of usable work at 0.5 MPa, which safely lifts roughly 1251 kg vertically with a 2:1 margin. Note that on this 250 mm bore, TPU seals are unavailable; the front-cover packing and buffer gasket are NBR, with a Viton H option for 0-150 C high-temperature environments.
Airtac SGC Standard Cylinder SGC250X20STC Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X20STC |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1 |
| Rod thread | M42×2.0 |
| 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, 60 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGC Standard Cylinder SGC250X20STC
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGC Standard Cylinder SGC250X20STC Is Used
Stamping Press Feed
Provides the 24543 N push at 0.5 MPa needed to drive heavy billets into a hydraulic stamping press.
Pallet Squaring Unit
Uses the 60 mm adjustable cushion to absorb kinetic energy when squaring 1251 kg pallet loads on a packaging line.
Injection Mold Clamp
Generates up to 34360 N at 0.7 MPa to secure heavy injection molding tooling via the ISO 15552 TC trunnion mount.
Is the Airtac SGC Standard Cylinder SGC250X20STC the Right Cylinder?
This 250 mm bore sits at the top of the SGC range, offering 24543 N push at 0.5 MPa where the next size down (200 mm) provides 15708 N. If you need to hold a load vertically, remember that a plain cylinder drifts when air is lost or the valve is centered; the air cushion only decelerates the piston near stroke end and acts as no lock. You must add an external rod lock or pilot-operated check valve for secure holding. The included TC trunnion mount and -S magnet ensure compatibility with ISO 15552 trunnion accessories and CMSG/DMSG/EMSG sensors.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
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; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGC Standard Cylinder SGC250X20STC FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It delivers 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum of 5006 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. Because it is a 250 mm bore, TPU seals are not offered; it uses NBR front-cover packing and buffer gaskets, with a Viton H option for 0-150 C high-temperature environments.
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1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
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