
The AirTAC Airtac SGC Standard Cylinder SGC125X80STC is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 80mm stroke, G1/2 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.
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore cylinder brings genuine ISO 15552 mounting-interface interchangeability to heavy automation setups. Four steel tie rods clamp the aluminum barrel to the front and rear covers, ensuring high structural rigidity while a two-way piston seal maintains an internal oil reservoir for long service life. Operating at speeds of 30-500 mm/s, it features a G1/2 port and a 32 mm rod with an M27x2.0 thread.
Because the -S suffix equips this unit with a piston magnet, it is fully ready for CMSG, DMSG, or EMSG position switches. For practical sizing, plan for about 3682 N of real work at 0.5 MPa, which equates to lifting roughly 313 kg vertically with a 2:1 safety margin. The 40 mm adjustable air cushions at both ends absorb end-of-stroke impact, though buyers should note this only decelerates the piston rather than locking it in place.
| Model | Airtac SGC Standard Cylinder SGC125X80STC |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 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).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×80 | 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.
Drives small bushings and bearings into automotive transmission housings, utilizing the 6136 N push force at 0.5 MPa for precise, repeatable insertion.
Acts as a heavy-duty pop-up stop on a conveyor line, raising into position to halt loaded pallets weighing up to 313 kg with a safe 2:1 vertical margin.
Executes sharp, positive folding motions on heavy corrugated carton flaps in high-speed packaging lines, relying on the 80 mm stroke and 30-500 mm/s speed range.
When sizing this 125 mm bore option against the rest of the SGC family, it serves as the entry point for large-bore thrust, stepping up significantly to the 160 mm bore which provides 10053 N of push force at 0.5 MPa. The included TC trunnion mount utilizes the standardized ISO 15552 interface, allowing seamless integration with existing fixture designs. Since this 80 mm stroke is well under the 500 mm threshold, standard rod-bending concerns are minimal, but always verify side-load alignment.
If your application requires the load to remain suspended or fixed during a loss of air pressure or when the valve is centered, a plain cylinder will drift. The integrated air cushion is strictly for deceleration and acts as neither a brake nor a position lock. To hold a load securely under those conditions, you must add an external rod lock or incorporate a pilot-operated check valve into your pneumatic circuit.
Quick checklist
This 125 mm bore cylinder features a G1/2 port and generates 6136 N push / 5734 N pull at 0.5 MPa, and 8590 N push / 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. The TC trunnion mount and overall body dimensions adhere to the ISO 15552 mounting interface, allowing you to swap it directly into existing large-bore ISO 15552 fixtures.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Large-bore cylinders built to order — confirm lead time.
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