Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75S 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 SGCJ125X120-75S
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a 125 mm bore with a 120 mm nominal stroke. Four steel tie rods clamp the aluminum barrel to the covers, while the G1/2 port supplies the 32 mm rod. An external adjuster provides a 75 mm extend-shortening window, letting you set the usable forward stroke anywhere from 45 to 120 mm on-site without changing the hardware.
The retract end remains fixed, giving you exact end-position tuning for varying part lengths. With a safe working load of roughly 3682 N, it can vertically lift about 313 kg with a 2:1 margin. The built-in -S magnet supports CMSG, DMSG, and EMSG sensors, and the standard TPU seals handle -20 to +70 C, with Viton H available for 0-150 C environments.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75S |
|---|---|
| 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 SGCJ125X120-75S
| 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 SGCJ125X120-75S Is Used
Press Fit Tuning
Adjusts the extend stroke on-site to set precise insertion depths for varying bearing housings without swapping the cylinder.
Variable Length Diverter
Fine-tunes the pusher end position to deflect different package sizes on a sorting line within the 45 to 120 mm window.
Adjustable Stop Gate
Regulates the forward stop position to accommodate mixed pallet heights while utilizing the full 6136 N push force.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X120-75S the Right Cylinder?
When sizing this unit, the 125 mm bore sits at the low edge of the SGCJ family, offering 6136 N push at 0.5 MPa compared to the 10053 N of the 160 mm version. The 75 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or fine-tuning the end position after a tooling change. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG sensors. For any stroke length over 500 mm, always use external guide rails to prevent side-load damage.
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 SGCJ125X120-75S FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it delivers 8590 N push and 8028 N pull. The theoretical maximum is 1251 kgf at 1.0 MPa. The air port is G1/2.
The nominal 120 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable forward range of 45 to 120 mm. The retract end is fixed, and this mechanism only sets the end position, it does not lock the load.
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