
The AirTAC Airtac SGC Standard Cylinder SGC250X120CA is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 120mm 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.
Delivering 24543 N of push force at 0.5 MPa, this double-acting large-bore cylinder handles heavy industrial loads. It features a genuine ISO 15552 mounting interface, dropping directly into existing large-bore fixtures and spares. Four steel tie rods clamp the aluminum barrel to the covers for high rigidity, while a two-way piston seal maintains an internal oil reservoir for long service life. Because this is a 250 mm bore, TPU seals are unavailable; the front-cover packing and buffer gasket use NBR instead, with a Viton H option for 0-150 C environments.
Plan for roughly 14726 N of real work at 0.5 MPa, which equates to lifting about 1251 kg vertically with a 2:1 safety margin. The unit uses a G1 air port and a 50 mm rod with an M42x2.0 thread. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches without upgrading to the -S variant.
| Model | Airtac SGC Standard Cylinder SGC250X120CA |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 120 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).
| 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.
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×120 | 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.
Provides the high 24543 N push force required to actuate large stamping dies and form heavy-gauge metal components.
Lifts roughly 1251 kg vertically with a 2:1 margin, ideal for driving the main carriage in robust automated palletizing systems.
Uses its rigid tie-rod construction and CA clevis to secure heavy injection molding halves during high-pressure resin injection.
When sizing this 250 mm bore unit, there is no larger standard SGC option, so if 24543 N at 0.5 MPa is insufficient, you must add a mechanical advantage or use multiple cylinders. Stepping down to the 200 mm bore drops the push force to 15708 N at 0.5 MPa. The included CA clevis mounting suits pivoting applications, but ensure your fixture matches the ISO 15552 interface dimensions. Remember that a plain cylinder drifts when air is lost or the valve is centered; the 60 mm adjustable air cushions only decelerate the piston near stroke ends, so add an external rod lock or pilot-operated check valve if you need to hold a suspended load.
Quick checklist
This 250 mm bore cylinder uses a G1 air port. It generates 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.
No, this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant to enable magnetic sensing.
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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