Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-40S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-40S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-40S
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy workloads. The safe working load is about 3682 N, translating to roughly 313 kg lifted vertically with a 2:1 margin. Four steel tie rods clamp the aluminum barrel to the covers for structural rigidity, and the bore features a G1/2 port.
As an adjustable-stroke model, an external stop screw lets you shorten the extend stroke on-site by up to 40 mm, yielding a usable range of 85 to 125 mm without changing the cylinder itself. Because this SKU includes the -S magnet, it supports CMSG, DMSG and EMSG electronic or reed switches for position sensing. The default TPU seals operate from -20 to +70 C, while a Viton H option extends heat resistance to 150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-40S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-40S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 125 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 SGCJ125X125-40S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×125 | 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 SGCJ125X125-40S Is Used
Press Fit Tuning
Fine-tune the 85 to 125 mm extend stroke on-site to set exact insertion depth for heavy bearing press operations.
Variable Stops
Adjust the extend end position without swapping hardware to handle shifting package sizes on a packaging line.
Pallet Positioning
Dial in the extend stroke by up to 40 mm to adapt to varying pallet heights while lifting loads around 313 kg vertically.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-40S the Right Cylinder?
When sizing this unit, stepping down to a smaller bore lowers the force profile, while moving up to a 160 mm bore increases the 0.5 MPa push force to 10053 N. The adjustable-stroke window is ideal for fine-tuning end positions on-site or sharing a single spare across multiple stroke variants. It supports SGCJ mountings including FA, LB, TC, FTC, TCM1 and TCM2. The built-in -S magnet enables direct sensor mounting. For any stroke length of 500 mm or more, always use a guide rail 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 SGCJ125X125-40S FAQ
This 125 mm bore cylinder uses a G1/2 port. It generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push and 8028 N pull at 0.7 MPa, with a theoretical maximum of 1251 kgf at 1.0 MPa.
The external stop screw shortens the extend stroke by up to 40 mm on-site, giving a usable extend range of 85 to 125 mm. The nominal 125 mm stroke is the maximum, and the retract end remains fixed. This mechanism sets end position and does not hold the load.
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Covers non-human-caused product damage.
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