Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder features a 125 mm bore and a 120 mm nominal stroke. Four steel tie rods clamp the aluminum barrel to the covers, while the G1/2 port feeds the double-acting single-rod piston. The external adjuster lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable extend range of 45 to 120 mm without changing the cylinder itself. This on-site end-position tuning is ideal for sharing spares across stroke variants.
The mechanism sets the end position but is not a load lock, as a plain cylinder drifts on air loss while the 40 mm adjustable air cushions only decelerate near stroke end. For a held load, use an external rod lock or pilot-operated check valve. This non-magnet SKU cannot take a sensor, whereas the -S variant adds a magnet for CMSG/DMSG/EMSG switches. It handles a safe working load of about 3682 N, lifting roughly 313 kg vertically with a 2:1 margin. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops into existing large-bore fixtures and supports high-temperature Viton H seals up to 150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 120 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 SGCJ125X120-75
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×120 | 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 SGCJ125X120-75 Is Used
Press Fit Tuning
Fine-tune the 45 to 120 mm extend stroke on-site to dial in exact press-fit depths for bearings without swapping the cylinder.
Divertor Stop Adjustment
Shorten the extend stroke up to 75 mm on-site to accommodate different package sizes on a sorting line using the same fixed fixture.
Pallet Positioning
Leverage the 6136 N push force to push pallets into exact alignment, adjusting the end stop externally for varied pallet widths.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75 the Right Cylinder?
Size this 125 mm bore against the 160 mm option, which jumps to 10053 N push at 0.5 MPa, or step down if less force is needed. The SGCJ adjustable-stroke design shines when you need on-site end-position tuning or want a shared spare across multiple stroke variants. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this is a non-magnet SKU, it cannot accept a magnetic sensor; order the -S variant if you require CMSG, DMSG, or EMSG switches. For any stroke length at or above 500 mm, always use a guide rail to prevent side-load damage to the piston rod.
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 SGCJ125X120-75 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. This 125 mm bore cylinder uses a G1/2 air port and features a 32 mm rod with an M27x2.0 rod-end thread.
The 120 mm nominal stroke is the maximum extend length. The external adjuster allows you to shorten the extend stroke on-site by up to 75 mm, giving a usable extend range of 45 to 120 mm. The retract end is fixed. This stop sets the end position and is not a load lock.
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