
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-30S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 150mm 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.
Generating 6136 N of push force at 0.5 MPa, this ISO 15552 tie-rod cylinder features a 125 mm bore and a single rod. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, and the design is dimensionally interchangeable per the ISO 15552 mounting interface. A G1/2 port supplies air, while a two-way piston seal extends service life. With a safe working load around 3682 N, it can vertically lift approximately 313 kg with a 2:1 margin.
The -30 code defines an external adjuster that lets you shorten the extend stroke on site by up to 30 mm, yielding a usable extend range of 120 to 150 mm. The nominal 150 mm stroke remains the maximum, and the retract end stays fixed. This mechanism lets you fine-tune the end position without changing the cylinder itself. An integrated magnet is included, supporting CMSG, DMSG and EMSG switches for position sensing.
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-30S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 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). |
| ×150 | 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.
Dial in the exact 120 to 150 mm extend end position on a light-duty assembly press without swapping cylinders, using the 30 mm external adjuster to accommodate varying material thicknesses.
Fine-tune the extend reach of a sorting divert gate on a packaging line, ensuring precise product contact while relying on the 6136 N thrust to push heavy cartons reliably.
Adjust the extend stop distance on a pallet handling line by up to 30 mm to handle different pallet widths, using the CMSG sensors to confirm the end position.
When sizing this unit, the 125 mm bore sits at the low edge of the large-bore SGCJ family, delivering 6136 N push at 0.5 MPa. Stepping up to the 160 mm bore increases thrust to 10053 N, while dropping below 125 mm requires the smaller SGC series. The adjustable stroke is ideal for machines sharing a common spare across slightly different stroke variants, as you can tune the extend end position on site. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. The -S suffix confirms the piston magnet is present for CMSG, DMSG or EMSG sensors. For any stroke at or above 500 mm, always use a guide rail to prevent side-load damage to the rod seals.
Quick checklist
This 125 mm bore cylinder delivers 6136 N push and 5734 N pull at 0.5 MPa, increasing to 8590 N push and 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa. It uses a G1/2 air port and features a 32 mm piston rod with an M27x2.0 thread.
The -30 code provides an external adjuster that shortens the extend stroke by up to 30 mm on site. The usable extend range is 120 to 150 mm, with the nominal 150 mm being the maximum. The retract end is fixed. This stop sets the end position but does not hold the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
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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