Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-20
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-20 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-20
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 the 32 mm piston rod, and a two-way piston seal ensures reliable pressure retention.
The -20 code defines an external adjuster that lets you shorten the extend stroke on site by up to 20 mm, giving a usable range of 130 to 150 mm without changing the cylinder itself. It handles about 3682 N of safe working load, which translates to roughly 313 kg lifted vertically with a 2:1 margin. Note this SKU lacks a magnet, so it cannot take CMSG or DMSG sensors without the -S option.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-20 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-20 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 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 SGCJ125X150-20
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×150 | 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 SGCJ125X150-20 Is Used
Press Fit Tuning
Micro-adjust the 130 to 150 mm extend stroke on-site to dial in exact pressing depths for bearing insertion without swapping cylinders.
Divertor Stroke Trim
Shorten the extend end by up to 20 mm to perfectly align a divertor arm with varying product widths on the line.
Pallet Stop Positioning
Fine-tune the stopping point of heavy pallets by adjusting the external stop screw to compensate for fixture wear.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X150-20 the Right Cylinder?
When sizing this 125 mm bore against its neighbors, it sits at the low edge of the large-bore family, offering 6136 N push at 0.5 MPa compared to the 10053 N available from the 160 mm version. The adjustable stroke is ideal when you need to fine-tune end positions on-site or want a shared spare across slightly different stroke variants. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this is a non-magnetized SKU, it cannot support position sensing. For any stroke over 500 mm, always use a guide rail to prevent side-load damage to the 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 SGCJ125X150-20 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 maximum force is 1251 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke on-site by up to 20 mm, giving a usable range of 130 to 150 mm. The nominal 150 mm stroke is the maximum, and the retract end is fixed. The stop sets the end position but does not lock the load.
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