
The AirTAC SGCJ200-250 Adjustable Cylinder SGCJ250X100-20 is a genuine double acting, double rod, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 100mm 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.
The four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity. A G1 air port and M42x2.0 rod thread equip this 250 mm bore unit.
The -20 code means an external adjuster can shorten the extend stroke on-site by up to 20 mm, giving a usable range of 80 to 100 mm without changing the cylinder itself. The retract end remains fixed. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops into existing large-bore fixtures. Note that TPU seals are not offered on this 250 mm bore; NBR is standard, with a Viton H option for 0 to 150 C heat.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X100-20 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 100 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| 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 | 23562 N | 23562 N |
| 0.7 MPa | 32987 N | 32987 N |
| Max (@1.0 MPa) | 4805 kgf | |
SGCJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×100 | 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. On Ø250 the blank code is the standard NBR build (no TPU).
Dial in the exact 80 to 100 mm extend contact point on-site to trim heavy stamping blanks without remounting the entire fixture.
The adjustable stroke is ideal when you need to fine-tune the extend end position on-site or want a shared spare across slightly different stroke variants. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. This non-magnet SKU cannot take a sensor; you need the -S version for CMSG, DMSG, or EMSG switches. Because the 100 mm stroke is short, side-load risks are minimal, but always guide the rod to prevent binding. A plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve for held loads.
Quick checklist
The theoretical max force is 5006 kgf at 1.0 MPa. The air port is G1.
The external stop screw shortens the extend stroke by up to 20 mm on-site, giving a usable extend range of 80 to 100 mm. The nominal 100 mm stroke is the maximum, and the retract end is fixed. The stop sets the end position but does not lock the load.
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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