
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-50 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 100mm 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 large-bore ISO 15552 tie-rod cylinder uses four steel rods to clamp its aluminium barrel for high structural rigidity. The G1/2 port feeds a double-acting single-rod piston that runs at 30-500 mm/s. It handles a safe working load of roughly 3682 N, which means you can vertically lift about 313 kg with a 2:1 safety margin.
The -50 code defines a 50 mm external adjuster window, letting you shorten the extend stroke on-site from the 100 mm maximum down to 50 mm without changing the cylinder body. The retract end remains fixed. A two-way piston seal minimizes leakage, and the standard TPU elastomer handles -20 to +70 C, though a Viton H option extends this to 150 C.
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-50 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 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). |
| ×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.
Dial in the exact 50 to 100 mm extend position on-site for inserting bearings without swapping the cylinder.
Adjust the extend stop to route different package sizes on a belt line using the 6136 N push force.
Fine-tune the gate extension distance on-site to handle varying pallet widths securely.
This 125 mm bore sits at the low edge of the SGCJ range, stepping up from smaller units to provide 6136 N push at 0.5 MPa; if you need significantly more power, the 160 mm bore offers 10053 N. The adjustable stroke is ideal for sharing one spare across machines that need slightly different extend end-positions. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. Because this specific SKU lacks the -S suffix, it cannot accept CMSG/DMSG/EMSG magnetic sensors. Even at 100 mm stroke, always use a guide to prevent side-load wear.
Quick checklist
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it yields 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa.
The 100 mm nominal stroke is the maximum. The external -50 adjuster lets you shorten the extend stroke on-site by up to 50 mm, giving a usable extend range of 50 to 100 mm. The retract end is fixed, and the adjuster only sets end position, not load holding.
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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