Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S 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.
- BoreØ125 mm
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S
Generating 6136 N of push force at 0.5 MPa, this ISO 15552 tie-rod cylinder brings large-bore power to precision tasks. The four steel tie rods clamp the aluminum barrel securely, and the G1/2 port matches the 125 mm bore standard. A built-in piston magnet comes standard, ready for CMSG, DMSG, or EMSG reed and electronic switches.
The -20 code defines an external adjuster that shortens the extend stroke on site by up to 20 mm, letting you fine-tune the end position from 155 to 175 mm without swapping the cylinder. This yields a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin. The retract end remains fixed, and the standard TPU seals handle -20 to +70 C, with Viton H available for 0-150 C environments.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S |
|---|---|
| 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).
Theoretical Output Force (Ø125mm)
| 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.
Model Code: Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S
| 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.
Where the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S Is Used
Press Fit Tuning
Dial in the exact 155 to 175 mm extend position on site to seat bearings without over-traveling, leveraging the external adjuster for precise mechanical stops.
Transfer Diversion
Actuate a routing gate where the full 175 mm stroke needs a 5 mm shortening to clear a new product profile, using the G1/2 port for rapid pneumatic response.
Pallet Stopper
Halt incoming pallets using the 5734 N pull force at 0.5 MPa, adjusting the stop face by a few millimeters to accommodate varying pallet tolerances.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S the Right Cylinder?
When sizing this unit, the 125 mm bore sits at the lower edge of the SGCJ family, delivering 6136 N push at 0.5 MPa; stepping up to the 160 mm bore provides 10053 N for heavier demands, while smaller ISO 15552 units lack this tie-rod rigidity. The 20 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or finalizing end positions during machine commissioning. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this SKU includes the -S magnet, it directly accepts CMSG, DMSG, and EMSG sensors. For any stroke length approaching or exceeding 500 mm, always use a external guide to prevent rod side-loading and premature seal wear.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20S FAQ
At 0.5 MPa this 125 mm bore cylinder provides 6136 N push and 5734 N pull. At 0.7 MPa it delivers 8590 N push and 8028 N pull, with a theoretical maximum of 1251 kgf at 1.0 MPa. The air port size is G1/2.
The -20 indicates an external adjuster that lets you shorten the extend stroke by up to 20 mm on site. The usable extend range is 155 to 175 mm, with 175 mm being the maximum nominal stroke. The retract end is fixed, and this stop mechanism only sets position; it does not lock the load.
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