Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20 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 SGCJ125X175-20
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 aluminum barrel for high structural rigidity. The G1/2 port feeds a 32 mm piston rod threaded M27x2.0, operating at 30-500 mm/s with 40 mm adjustable air cushions at both ends. It handles a safe working load of about 3682 N, which means you can vertically lift roughly 313 kg with a 2:1 safety margin.
The -20 code defines an external adjuster that lets you shorten the extend stroke on-site by up to 20 mm, giving a usable extend range of 155-175 mm while the retract end stays fixed. You can fine-tune the end position without physically swapping the cylinder, and the body is dimensionally interchangeable per the ISO 15552 mounting interface. The default TPU seals offer long life, though a Viton H option extends the temperature range up to 150 C. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20 |
|---|---|
| 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 SGCJ125X175-20
| 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 SGCJ125X175-20 Is Used
Press Fit Tuning
Dial in the exact 155-175 mm extend position for seating bearings without remounting the entire actuator.
Transfer Stopper Gate
Adjust the stop gate height on-site by up to 20 mm to accommodate different product sizes on the line.
Pallet Positioning
Fine-tune the push-off distance for pallets of varying widths while maintaining 6136 N of thrust.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-20 the Right Cylinder?
When sizing this 125 mm bore, stepping down is not an option as it is the smallest in the SGCJ family, but stepping up to the 160 mm bore raises the 0.5 MPa push force from 6136 N to 10053 N. The 20 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or dialing in final end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this is a non-magnetized SKU, you cannot mount position sensors; you would need the -S variant for CMSG/DMSG/EMSG switches. For this 175 mm stroke, standard guide rails should handle any side-load, but always support the rod end on strokes of 500 mm or more.
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 SGCJ125X175-20 FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical max force is 1251 kgf at 1.0 MPa. The air port size is G1/2.
The external stop screw lets you shorten the extend stroke on-site by up to 20 mm, giving a usable extend range of 155-175 mm from the 175 mm nominal maximum. The retract end remains fixed. This mechanism sets the end position and does not hold the load; use an external rod lock or pilot-operated check valve if you need to prevent drift on air loss.
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