Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S 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.
- BoreØ125 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S
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 built-in piston magnet supports CMSG, DMSG and EMSG switches for precise position detection. 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 -20 code means an external adjuster can shorten the extend stroke on site by up to 20 mm, letting you fine-tune the end position without swapping the cylinder. Nominal stroke is the 100 mm maximum, giving a usable 80 to 100 mm extend window while the retract end stays fixed. Air connects via a G1/2 port, and standard TPU seals operate from -20 to +70 C, though a Viton H option extends this to 150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S |
|---|---|
| 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).
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 SGCJ125X100-20S
| 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.
Where the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S Is Used
Press Fit Tuning
Fine-tune the 20 mm extend window on site to set precise insertion depth for bearing press operations without machining new stops.
Divert Gate Adjustment
Dial in the exact 80 to 100 mm gate extension needed to deflect varying package sizes on a sorting line.
Pallet Stop Positioning
Adjust the end position to accommodate different pallet footprints while delivering 6136 N of stopping force at 0.5 MPa.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X100-20S the Right Cylinder?
When sizing this 125 mm bore, stepping down is rarely an option if you need the full 6136 N push at 0.5 MPa, but stepping up to the 160 mm bore yields 10053 N if your load grows. The adjustable stroke is ideal for sharing a single spare cylinder across multiple fixtures that need slightly different end positions, saving inventory space. You can mount it using FA, LB, TC, FTC, TCM1 or TCM2 brackets per the ISO 15552 interface. The -S suffix means the magnet is already included for your sensors. Even at 100 mm stroke, always guide the load to prevent side-load wear on the rod seals.
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 SGCJ125X100-20S 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 maximum force is 1251 kgf at 1.0 MPa. The air port size is G1/2.
The nominal stroke is 100 mm, which is the maximum extend length. The external -20 mm adjuster allows you to shorten the extend stroke on site down to 80 mm to fine-tune the end position. The retract end is fixed, and this stop mechanism is not a load lock.
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