
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-50S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 175mm 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 125 mm bore ISO 15552 tie-rod cylinder features a robust aluminum barrel clamped by four steel rods. The integrated -S piston magnet supports CMSG, DMSG, and EMSG switches for precise position detection, while the G1/2 port handles the required air flow.
The -50 mm external adjuster allows you to shorten the extend stroke on-site down to 125 mm without changing the cylinder, meaning the 175 mm nominal stroke serves as the maximum. This on-site tuning capability lets you fine-tune end positions and share spares across stroke variants. With a safe working load around 3682 N, it handles roughly 313 kg lifted vertically with a 2:1 margin. The standard TPU seals operate from -20 to +70 C, with a Viton H option extending heat resistance up to 150 C.
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| 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.
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×175 | 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.
Fine-tune the extend end position on-site using the 50 mm adjuster window to accommodate different material thicknesses in a light-duty press.
Adjust the extend stroke precisely to match varying package widths on a sorting line without swapping out the entire actuator.
Shorten the extend stroke on the fly to handle mixed pallet sizes, using the magnetic switches to confirm the stopper position.
When sizing this unit, stepping down to a smaller bore drops the 0.5 MPa push force significantly, while moving up to a 160 mm bore yields 10053 N. The adjustable stroke is ideal for machines needing end-position tuning after installation or for consolidating spare parts across slightly different stroke variants. You can mount it via FA, LB, TC, FTC, TCM1, or TCM2 brackets. Because this SKU includes the -S magnet, it readily accepts CMSG, DMSG, or EMSG sensors. For any stroke length at or exceeding 500 mm, always use a guide rail to prevent side-load damage.
Quick checklist
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it delivers 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa.
An external stop screw lets you shorten the extend stroke on-site by up to 50 mm. The usable extend range is 125 to 175 mm, with 175 mm being the maximum nominal stroke. The retract end remains fixed. This mechanism sets the end position and 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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