Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-50S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-50S 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 SGCJ125X125-50S
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates an external adjuster to shorten the extend stroke on-site by up to 50 mm. The nominal 125 mm stroke serves as the maximum, yielding a usable extend range of 75 to 125 mm, while the retract end remains fixed. This on-site tuning lets you fine-tune the end position without physically changing the cylinder. It handles a safe working load of roughly 3682 N, translating to about 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 ISO 15552 mounting interface ensures dimensional interchangeability with standard large-bore fixtures. The G1/2 port feeds the 32 mm piston rod, and the included -S magnet supports CMSG, DMSG, and EMSG sensors for position detection. Standard TPU seals operate from -20 to +70 C, with a Viton H option extending heat resistance up to 150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-50S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-50S |
|---|---|
| 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 SGCJ125X125-50S
| 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 SGCJ125X125-50S Is Used
Press Fit Tuning
Micro-adjust the 50 mm extend window on-site to dial in the exact pressing depth for bearing insertion without swapping the cylinder.
Divertor Gate Stop
Set a precise extended stop position for sorting packages, using the G1/2 port and 6136 N force to halt heavy cardboard flows.
Pallet Lift Cradle
Lift roughly 313 kg of loaded pallet vertically with a 2:1 safety margin, relying on the fixed retract end for consistent lowering.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-50S the Right Cylinder?
This 125 mm bore sits at the lower edge of the SGCJ range, offering 6136 N push at 0.5 MPa; stepping up to the 160 mm bore yields 10053 N, while dropping below 125 mm is unsupported in this series. The 50 mm adjustable stroke window is ideal for sharing a single spare cylinder across multiple stroke variants or finalizing end positions during machine commissioning. Standard mountings include FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix confirms the piston magnet is present for electronic or reed switches. For this 125 mm stroke, side loads are minimal, but any future application exceeding 500 mm stroke requires an external guide to prevent rod binding.
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 SGCJ125X125-50S 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. This bore size uses a G1/2 air port.
The external stop screw lets you shorten the extend stroke by up to 50 mm on-site. The nominal 125 mm stroke is the maximum, so the usable extend range is 75 to 125 mm. The retract end is fixed, and this adjuster only sets the end position—it does not lock the load.
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