Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-75S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-75S 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 SGCJ125X175-75S
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 built-in piston magnet supports CMSG, DMSG and EMSG switches for precise position detection, while the G1/2 port handles pneumatic flow. It handles a safe working load of about 3682 N, which means you can lift roughly 313 kg vertically with a 2:1 safety margin.
The -75 code defines an external adjuster window that lets you shorten the extend stroke on-site by up to 75 mm, giving a usable extension range of 100 to 175 mm without changing the cylinder itself. This on-site end-position tuning is ideal for sharing spares across stroke variants. The retract end remains fixed, and the default TPU seals offer long life, though a Viton H option extends operation to 150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-75S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-75S |
|---|---|
| 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 SGCJ125X175-75S
| 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 SGCJ125X175-75S Is Used
Press Fit Tuning
Use the 75 mm extend-shortening window to dial in the exact bottoming position for pressing bearings without machining new hard stops.
Divertor Stroke Trim
Adjust the extend reach on-site to match varying package widths on a sorting line, ensuring the diverter pawl hits the correct contact point.
Pallet Stop Calibration
Fine-tune the stopping height for different pallet loads by retracting the external adjuster screw, keeping the nominal 175 mm stroke as a maximum ceiling.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-75S the Right Cylinder?
When sizing this 125 mm bore unit, stepping down is not an option as it is the low edge of the SGCJ range, producing 6136 N push and 5734 N pull at 0.5 MPa. Stepping up to the 160 mm bore yields 10053 N push at the same pressure if your application demands more power. The adjustable stroke is a major selection advantage when you need to fine-tune the extend end position on the machine or standardize one spare cylinder across multiple non-critical stroke variants. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. The -S suffix confirms the magnet is present for sensors. Because the 175 mm stroke is well under the 500 mm threshold, side-load guide concerns are minimal, but always ensure linear guidance for optimal seal life.
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 SGCJ125X175-75S FAQ
This 125 mm bore cylinder has a G1/2 port and generates 6136 N push and 5734 N pull at 0.5 MPa. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa.
The nominal 175 mm stroke is the maximum extension. The external adjuster lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable range of 100 to 175 mm. The retract end is fixed, and this mechanism sets the end position rather than holding the load.
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